Text

Rev 1 to Calculation PBNP-IC-33, 4.16KV RT UV Matrix Relays Uncertainty/Setpoint Calculation
	ML20198A901
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Site:	Point Beach
Issue date:	11/23/1998
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ML20198A898	List: ML20198A901; NPL-98-1020, Forwards Rev 1 to Calculation PBNP-IC-33, 4.16KV RT UV Matrix Relays Uncertainty/Setpoint Calculation. Calculation Verifies That Setpoint Calculation Provided with 980528 Submittal Is Conservative,Per 980911 RAI;
References
	PBNP-IC-33, PBNP-IC-33-R01, PBNP-IC-33-R1, NUDOCS 9812170170
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{{#Wiki_filter:__ _ j a a= l DOCUMENT APPROVAL COVER SHEET Duke DOCUMENT NUMBER: PyNP-IC-33 Engineering i DOCUMENT TITLE: 4.16KV Reactor Trio Undervoltane ggg Matrix Relays Uncertaintv/Setooint Calculation i nocuumr ins 4 baErNE$ CLIENT: WISCONSIN ELECTRIC POWER COMPANY ,,,,,,,, REPORT - N PROJECT: PBNP Setooint Verification Program i l l PROJECT NUMBER: 00087.00.0007.33.00000 'nzse engineering calculations cover QA condition #1. In accordance with estahtished procedures.the quality has been assured and the approver certifies that the above calculation has been orf anated, verified, and approved as noted below.

SUMMARY

DESCRIPTION: 1 This calculation determines the uncertainties, total loop error, and the nominal trip setpoints for the 4.16KV Reactor Trip Undervoltage Matrh Relays. This calculation is safety-related i REVISION: DESCRIPTION: 0 OriginalIssue TOTAL NO. OF PACES :31 plus 46 attachment pages ORIGINATOR: Gregory W. Standinger DATE: 6/30/97 VERIFIER

Samima K. Vohra DATE: 6/30/97 APPROVER-Larry P. Lawrence DATE: 6/30/97 REVISION:

1 QA CONDITION sonware Review Criteria: Software Usage: DESCRIPTION: Revised based on new Analytic'al Limit from DD QA condnion i Ws% e., m Q,Vj8 a: Ref. C.1. Also revised drift O QA Condition 2 7 Version: NA w onne s: wA a QA Cmddie 3 a e sm o o can.cey values from 18 to 24 months 0 m sonw.ro R un.Docum.nt.d D cription: wA D OA Condition 4 i25% o e x.y en,,.m r iur n ,o.o TOTAL NO. OF PAGES: 29 Plus 39 Attachment pages Verification Method: Document File: Ic33r1. doc 782kB 11/23/98 s/ Sign.atu4 Printed Name Date PREPARER: J /v h M_ / 4 b r - Gregory W. Standinger ///A3/pp' _// D e h b f69 Karen L DePodesta it /r.M 98, f VERIFIER: f6fdd7 APPROVER: 4, N Larry P. Lawrence (,/n /96 I PAGE 1 CONTINUED ON PAGE 2 I / L 9812170170 981211 l PDR ADOCK 05000266 PDR p m l

2 TABLE OF CONTENTS

1. O. OBJECTIVE OF CALCULATION..

.3

2. O. ACCEPTANCE CRITERIA..

.3

3. O ABBREVIATIONS...

.3

4. O. REFERENCES.

..4 4.1. General.. .4 4.2. Drawings.. .4 4.3. Procedures. .4 4.4. VendorInformation. .5 4.5. Calculations.. .5 5 0. ASSUMPTIONS.. .5

6. O. DESIGN INPUTS..

.7 6.1. Configurations.. .7 6.2. Environment.. .7

7. O. METHOD AND EQUATION S'UMMARY.,

.7 7.1. Block Diagrams.. .7 7.2. Component Models and Tag Numbers. .8 7.3. Sources of Uncertainty.. .8 7.4. Equation Summary .8 7.4.1. Total Loop Error.. .8 7.4.2. Nominal Trip Setpoint, Allowable Value, and Relay Error Definitions.. .10 7.4.3. Nominal Trip Setpoint and Allowable Value Check Limit Tests.. .10 7.4.4. Voltage and Time Delay Setting Drift.. .11 7.4.4.1. Surveillance As-Found/As-Left Data... .11 7.4.4.2. Outlierldentification.. .12 7.4.4.3. Descriptive Statistics and Drift.. .12 7.4.4.4. Tests for Normalcy. . 13 7.4.4.4.1. Skewness and Kurtosis.. .13 7.4.4.4.2. Probability and Histogram Plots. .15 7.4.4.4.3. Normalcy Conclusions and Binomial Approximation.. .16 7.4.5. Acceptable As-Left and As-Found Tolerances for Calibration. .17

8. O. BODY OF CALCULATION..

.18 .18 8.1. Device Uncertainty Notes.. 8.2. Device Uncertainties.. . 21 8.3. Uncertainty Allowances and Total Loop Errors.. . 23 8.3.1. Voltage Trip Uncertainty Allowances and Total Loop Error.. . 23 8.3.2. Time Delay Trip Uncertainty Allowances and Total Loop Error.. . 23 8.4. Acceptable As-Left and As-Found Tolerances for Calibration. . 24 8.4.1. Individual Acceptable As-Left Tolerances.. . 24 8.4.2. Individual Acceptable As-FoundTolerances. . 24 8.5. Setpoint Evaluation.. . 25 8.5.1. Nominal Trip Setpoint and Allowable Value for the Voltage Setting.. . 25 3 8.5.2. Nominal Trip Setpoint and Allowable Value for the Time Delay Setting.. . 26 i 8.5.3. ATSP As-Left / As-Found Tolerance Ranges.. . 27 l

9. O. CONCLUSIONS..

. 28 l

10. 0. IMPACT ON PLANT DOCUMENTS..

. 29

11. 0. ATTACHMENTS..

. 29 I 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation M PBNP Setpoint Verification Project l 1UdWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE O GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 2 REV BY DATE CHECKED DATE & Services .f29 Ic33r1. doc

i a n. j 1.0. OBJECTIVE OF CALCULATION j The objective of this calculation is to determine the uncertainties, Total Loop Error (TLE), and the nominal trip setpoint for the 4.16KV Reactor Trip Undervoltage Relays for both Units 1 & 2 of the Point Beach Nuclear l' Plant. - 1 These numbers will be calculated using 95% probability / 95% confidence uncertainty numbers and 24 month 25% surveillance interval drift numbers. This calculation does NOT select the actual trip setpoint nor the analyticallimit of the Reactor Trip relay f series, rather these values are inputs to this calculation. i i 2.0. ACCEPTANCE CRITERIA This calculation will be considered acceptable if the uncertainties, TLE, and setpoints are calculated in l accordance with the methodology in Reference G.L i 3.0.'. ABBREVIATIONS l 'l 3.1. 273/274 4.16kV Undervoltage Matrix Relays which perform the Reactor Trip i 3.2. AL . AnalyticalLimit j 3.3. ATSP ActualTrip Setpoint 3.4. AV Allowable Value 3.5. EOP Emergency Operating Procedure 3.6. FSAR Final Safety Analysis Report 3.7. M&TE Measurement and Test Equipment j 3.8. NTSP NominalTrip Setpoint 3.10. PBNP Point Beach Nuclear Plant 3.12. RCS Reactor Coolant System 3.13. RE Relay Error I 3.14. SRSS Squarc Root of the Sum of the Squares 3,15. Tech Spec Technical Specifications 3.16. TD Time Delay 3.17. TDAF Time Delay As-Found 3.18. TDAL Time Delay Analytical Limit 3.19. TDAsL Time Delay As-Left 3.20. TLE TotalLoop Error L 3.21. VAF Voltage As-Found 3.22. VAL Voltage As-Left I i. I l l. i l l 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 J PAGE O GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP IC-33 3 REV BY DATE CHECKED DATE & Services of29 I [ Ic33r1. doc

ur 4.0. REFERENCES Please note that it is the responsibility of the individual revising any of the listed references to evaluate if the change being made affects this calculation. 4.1. General l G. I. Point Beach Nuclear Plant Design Guideline DG-101, Instmment Setpoint Methodology, Rev. 2 G.2. ' ANSI / IEEE C57.13 - 1978 page 21 (Attachment D) G.3. Point Beach Final Safety Analysis Report, Subsection 7.2.2 System Design: Protective Actions: Low Reactor Coolant Flow Trip - June 1992 l G.4. CHAMPS II Printouts for Undervoltage Relays l G.5. A01/A02 Wisconsin Electric Relay Test Reports Units l' and 2 from 1987 through 1996 G.6. Technical Specification (a) Section 15.4, Table 15.4.1 1, Item 11; (b) Section 15.4.0.2; (c) Section 15.2.3.1.B[6]. i l G.7. FSAR Section 8.2, Figures 8.2-4 & 8.2-5; 4160V One-Line Diagram, Units 1 & 2; June 1997 G.8. Administrative Control Policies and Procedures Manual 5.4.3, Rev. 6 and 5.4.4, Rev. 8; April 16, 1992 I G.9. PBNP Setpoint Document, Section 21.1; Sheets 14,30,52, and 53; at Revisions 3,2,2, and 2 ] respectively. 4.2. Procedures P.I. IICP-02.013; 4.16KV Undervoltage Matrix Relays Monthly Surveillance Test; { Rev.1 - dated 3/12/93 P.2. IICP-02.013 1; 4.16KV Undervoltage Matrix Relays Monthly Surveillance Test; l Rev. 4 - dated 2/17/98 P.3. 2ICP-02.013; 4.16KV Undervoltage Matrix Relays Monthly Surveillance Test; 'l .Rev. 2 - dated 8/4/94 P.4. 2ICP-02.013-1; 4.16KV Undervoltage Matrix Relays Monthly Surveillance Test; l Rev. 5 - dated 2/17/98 P.S 1RMP 9056-3; Calibration and Testing cf Safety Related Protective Relays A-01/A Unit 1; Rev. 4 - dated 9/8/97 P.6. 2RMP 9056-3; Calibration and Testing of Safety Related Protective Relays A-01/A Unit 2; Rev. 5 - dated 12/12/97 4.16KV Reacter Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/9h KLD 11/23/98 DUKE (JOB No. 00087.00.0007.33PAGE D GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP IC-33 4 REV BY DATE ) CHECKED DATE & Services of29 Ic33r1. doc

2 = l 4.3. Vcd:r Inf rmati:n i i V.I. ABB Instructions 18.4.7-2 Issue E; "Undervoltage Relays and Overvoltage Relays Type 27,27D, 27H,59D, and 59H. (Attachment C) i 4.4. Calculations C.I. Sargent & Lundy Calculation 09334281-01, " Reactor Coolant Pump Internal Voltage Decay on i Loss of A01/A02 4kV Bus Voltage"; Rev. I dated 3/30/98 5.0, ASSUMPTIONS 5.1. Please refer to Section 10.0. for a listing of plant documents that may be affected by the results of this calculation. l 5.2. The 273/274 series 4.16 kV system undervoltage relays examined in this calculation are considered to be functionally identical and, as such, the data collected from each device can be considered independent samples from the same distribution. Therefore, the data can be combined to statistically determine the expected drift of the relays. 5.3. If the absolute value of the mean (average) of the final (second outlier drift points column) data set is less than 0.1 percent of setpoint, then a bias is assumed to not exist and the absolute value of this i mean is added to the standard deviation adjusted to correspond to a 95 %/95 % probability / confidence. If the absolute value of the mean is greater than 0.1 percent of setting, then c bias with the appropriate sign is assumed to exist and it is not added to the adjusted standard deviation. If a bias dces exist it is incorporated into the nominal setpoint calculation via the overall device drift calculation. 5.4 It is assumed that the data provided in Reference G.S. were performed in accordance with References P.5., P.6. and G.8. and thus any repairs and/or calibration adjustments made to the relays were recorded on the Relay Test Reports (Ref. G.S.) during the time period examined. It is also assumed that, unless otherwise noted on the Relay Test Reports (Ref. G.5.), that the As-Left value is the same as the As-found value. 5.5. 'Ihe Potential Transformers (PT) are assumed to have an uncertainty of 1.200% of the relay tap setting. This is based on Reference G.2. (Attachment D) worst-case li error. It is also assunied that this error cannot be applied to the time delay portion of the relay as the " process" is time which is a constant as opposed to the errors associated with the voltage IT. 5.6. It is assumed that the switchgear room is an environmentally controlled area with minimum fluctuations in humidity and temperature. It is assmned that the ambient temperature for the relays located inside the switchgear room (Ref. G.4.) will be maintained within the vendor specified operating temperature range for the relays. The operating range is -30*C to +70*C [-22*F to ISPF] (Ref. V.I.). Any error associated with the " variation in operating voltage over the temperature range 20-40 deg C: 0.5 volt, typical" (Ref. V.I.) is assumed to be included in the as-found / as-left voltage drift error term. The ambient temperature during calibration is also assumed to be within the operating temperature range of the relays (References P.S. and P.6.). Given these assumptions the i relays will only be ana'yzed for normal conditions. l 5.7. According to the PBNP Setpoint Methodology (Ref. G.I.), only mechanical desices experience a permanent output shift due to a seismic event. Ref. G.I. also assumes that for scismic events greater 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Venfication Project i l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE l 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 5 REV BY DATE CHECKED DATE & Senices of29 Ic33r1. doc

____m. 4 t-3 4 j. than an Operating Basis Earthquake, instrumentation will be recalibrated prior to any subsequent accident; thus, negating any permanent shift that may have occurred due to the seismic event. i 5.8. From the PBNP Setpoint Methodology (Ref. G.1), statistically derived as-found/as-left drift values include the effects of M&TE used in past calibrations. To maintain the validity of these values, it is assumed the M&TE used to perform future calibrations will be of equivalent accuracy to the M&TE - used in the past calibrations on which the as-found/as-left drift data is based. 5.9. The intent of this calculation is to provide drift value:; for the 273/274 relays for a two year surveillance interval. Ideally, the intervals over which the drift is calculated will be 730 days for a 4 two year interval. However, since the typical calibration interval for these devices is one year, the i Sliding Filter Approach, as described in Appendix H of Reference G.I. is used for this drift l evaluation. Since the PBNP Technical Specifications (Ref. G.6. (b)) allow for a 25% extension of i surveillance intervals, the combined drift data which has a time interval of 730 days i25% is included i in the data sets and is considered two-year data. J . 5.10. The values shown in this calculation are linked to a Microsoft Excel @ sr *adsheet file IC33.XLS in 4 which the calculated values are determined. The spreadsheet cells are fonnatted to display three decimal places. The cells are linked such that successively calculated values are dependent on the previously calculated cells, which may cause intermediate values to appear incorrectly rounded. However, the final results are correct with respect to the initial input values. I Below is a table which summarizes the spreadsheet file worksheets: File IC33.XLS Summarv Worksheet Name Description l l UV-PUI Undervoltage Drift Determination UV-TDI Time Delay Drift Determination UnC-SetP! Uncertaintv/Setpoint Determination Summaryl Summary Tables for Conclusions and Lists 4 l TABLESI DG-IOI (Ref. G.I.) Tables A through D for Drift Number Determination and Evaluation ] 5.11. The analytical hmit for the 273/274 series relays time delay setting will be defined as the maximum j reactor trip response time which is 1.5 seconds (Section VIILE of Ref. C.I.). This analytical limit only applies to the reactor trip function of the undervoltage relays, namely the 273/274 series relays. 1 5.12. Uncertainty values for voltage settings are presented in percent of voltage tap setting rather than voltage setting span since the relays do not have an instrument span (Ref. V.l.). Instead the relay has i seven(7) tap settings that may be selected. Uncertainty values for time delay settings are similarly presented in percent of time delay setting since there isgtime delay setting span (Ref. V.l.).fcggg 5.13. The Low and High Tolerances for the Unit 2 273/274 series relays shown on Page 36 of Reference P.6. are outside the range of the setpoint and are assumed to be a transcription error. The tolerances shown for the Unit 1273/274 series relays (Ref. P.S.) will be used for the Unit 2 tolerances. 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 6 REV BY DATE CHECKED DATE & Services of29 Ic33r1. doc

l. 6.0. DESIGN INPUTS 6.1. Configurations The components addressed in this calculation were identified in References P.S., P.6., V.I., and G.7. These components are defined in Sections 7.1. and 7.2. The devices are listed in Section 7.2. l The tap setting is taken to be 90V for the 273/274 relays per the existing setting voltage defined in References P.5., P.6., and G.9 The voltage analytical limit (AL) for the 273/274 series relays is equal to 2,842.1 volts as defined in Section X. of Reference C.I. The existing time delay setting is 0.5 seconds for the 273/274 relays per the existing time delay settings defined in R:ferences P.S. P.6., and G.9. j i According to the Technical Specifications, the 273/274 series relay Tech Spec Limits are all equal to 2 89.15 Vac (Ref. G.6. (c)) which is "275% of normal voltage." That is [4160V*0.75]/35 where 35 is the turns ratio of the Potential Transformer (Refs. P.S., P.6., and Ref. G.9.). 6.2 Environment The relays are located in the switchgear room and are expected to experience temperatures within the operating range of the relays (Assumption 5.6.). 7.0. METHOD AND EQUATION

SUMMARY

7.1. Block Diagrams i The block diagram shown in Figure I represents the components for the 4.16KV Undervoltage Matrix I l Relays (Refs. G.6, G.7., P.S. and P.6.). 4160V 273/274 Bus ? UV Reactor I Relays Trip Logic + Alarm Figure 1 The relays monitor the 4160V buses which supply power to the RCS pumps. The reactor will trip if undervoltage to both pumps is detected and the reactor power is >10% and < $0%. The reactor will trip on detection of undervoltage to one RCS pump if reactor power is 2 50% (Ref. G.3.). An alarm is generated on the actuation of any relay (Refs. P.I. through P.6.). 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE O GWS 6/30/97 SKV 6/30/97 Engineering CALC No PBNP-lC-33 7 REV BY DATE CHECKED DATE & Services of29 Ic33r1. doc

r ' 7.2. Component Models and Tag Numbers The following table lists the bus monitored, tag number, manufacturer, and model number for the relays shown in Figure 1 and applies to both units (Refs. G.4., G.7., P.S., and P.6.). Bus Matrix Relays Manufacturer Model 1 A-01 1-273/A01 ABB/ITE 27D 1 A-01 1-274/A01 ABB/ITE 27D 1 A-02 1-273/A02 ABB/ITE 27D 1 A-02 1-274/A02 ABB/ITE 27D 2A-01 2-273/A02,1 ABB/ITE 27D 2A-01 2-274/A00/ ABB/ITE 27D 2A-02 2-273/A02 ABB/ITE 27D 2A-02 2-274/A02 ABB/ITE 27D khd 7.3. Sources of Uncertainty The device uncertainties to be considered for normal environmental conditions include the following (Ref. i l G.1.): Relay Accuracy (ra) Relay Stift (rd) Rel- .&TE (rm) Ren,etting Tolerance (rv) Rr* Power Supply Effect (rp) Rula, Temperature Effect (rt) Relay Humidity Effect (rh) Relay Radiation Effect (rr) - Relay Seismic Effect (rs) Relay Time Delay Accuracy (rtda) Relay Time Delay Drift (rtdd) 1 Relay Time Delay M&TE (rtdm) Relay Time Delay Setting Tolerance (rtdy) Relay Time Delay Power Supply Effect (rtdp) ] Relay Time Delay Temperature Effect (rtdt) Relay Time Delay Humidity Effect (rtdh) Relay Time Delay Radiation Effect (rtdr) Relay Time Delay Seismic Effect (rtds) , Potential Transformer Error (pte) 7.4. Equation Summary 7.4.1. Total Loop Error l The total loop error for setpoints is determined in accordance with the requirements of Ref. G.I. This methodology uses the square root of the sum of the squares (SRSS) method to combine random and 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Serpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE ' JOB No. 00087.00.0007.33 PAGE 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 8 REV BY DATE CHECKED DATE & Services of29 ic33r1. doc -

l ..c .: = l independent errors, and algebraic addition of non-random or bias errors. From Ref. G.I., the general i equation for combining errors to calculate total loop error is: i t TLE== dA +B +(C +D)2 ZlXl+ZY-ZZ 2 2 where: A, B Random and independent uncertainty terms = Random and dependent uncertainty terms l C, D = Non-random (unknown direction)- X = Non-random (positive biases) Y = Non-random (negative biases) Z = The general equation for total instmment loop error is (Ref. G.I.): TLE = id A + D + M + V + P + T + H + R + S + SPE + OPE + PC + B + + B' where: TotalLoop Error TLE =- A ' Accuracy Allowance (ag + a2...+ a,2 ) 2 = = (d 2+d2...+d,2) D ,= Drift Allowance = 3 2 (mg + m2...+ m 2) 2 2 M&TE Allowance M = = g Setting Tolerance Allowance = (vi + vf %,2 ) 2 V = (p3 + p,2,,+ p,2 ) 2 Power Supply Allowance P = = (t:2+t 2. + t,2 ) Temperature Allowance T = = 2 (h,2 ;- 11 2...+h,2) Humidity Allowance H = = 2 (r3 + r22...+r,2) 2 Radiation Allowance R = = 2 2...+s,2) Seismic Allowance (s1 + 82 S = = (speg + spe22...+ spe,2 ) 2 StaticPressure Allowance SPE = = 2 2 2,,,+epen) (opei + OPC2 Overpressure Allowance OPE = = 2+PC 2,,,+ pe,2 ) l PC Process Considerations (pc3 = = 2 2 + b as 2...+ bias,2) l B+ +(bias Positive Bias Errors = = yg p2 Negative Bias Errors -(bias,gi2 + bias 2...+ bias,2) l B- = = o neg2 In this case SPE and OPE will be ignored since the device is a relay and neither static nor over pressure - allowances apply here. 1 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS. IN23/98 KLD 11/23/98 DUKE JOB No. 00087.00 0007.33 PAGE O GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP IC-33 9 REV BY DATE CHECKED DATE & Services of29 Ic33r1. doc

... _. ~ l i. 7.4.2. Nr minal Trip Setpcirt, Alltweble Value, and Retry Error Definitions From Reference G.I. the Nominal Trip Setpoint (NTSP) is calculated using the following equation: l l NTSP = ALi(TLEn

PS).

where AL = AnalyticalLimit TLEn = Total Loop Error for normal >.' anditions j. -PS = Process Span l Since the devices are relays the Process Span term will be replaced with the Actual Trip Setpoint (ATSP), therefore; } l NTSP = ALi(TLE

ATSP)

The Total Loop Error will always be for normal conditions (Assumption 5.6) so the "n" subscript will not l be used. The "i" is used as these signs are dependent on the direction of conservatism. I The Allowable Value (AV) is calculated using the following equation from Reference G.I.; AV = ATSP i(Trip RE

PS) where ATSP '= ActualTrip Set point -

i RE = Rack Error = Relay Error PS = Process Span The Relay Error is calculated in a similar way to the TLE except that the process term (Trip PT) is not included: RE = (A + D + M + V + P + T + H + R + S)v2 + B+ + B' l l Since these devices are relays the Process Span will be equal to the Actual Trip Setpoint (ATSP), therefore; AV = ATSP $ (RE

ATSP) 7.4.3. Nominal Trip Setpoint and Allowable Value Check Limit Tests The AV is checked using the following two tests according to Reference G.I.:

Check Limit 1 = AL i(S/PE

PS) = CL1 Check Limit 2 = NTSP i(RE
PS) = CL2 where AL

= Analytical Limit S/P E = Sensor / Process Error NTSP = NominalTrip Setpoint RE = Relay Error PS = Process Span 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/93 DUKE JOB No. 00087.00.0007.33 PAGE O GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 10 REV BY DATE CHECKED DATE l & Services of29 Ic33r1. doc

i-l Since these devices are relays the S/P E term shall be replaced with the Potential Transformer Error (pte). Again the ATSP replaces the process span term. The equations then are as follows: CLI = ALi(pte

ATSP)

CL2 = NTSP t (RE

ATSP) j Again the "i" symbol is used to show that the sign is dependent on the direction of conservatism.

Note that for the tims delay settings the PT / process effect is not considered. Therefore for the time. delay setting: TD CL1 = AL (0

ATSP) = AL l

The AV is considered acceptable ifit is conservative with respect to CLI and CL2 (Ref. G.I.). l 7.4.4. Voltage and Time Delay Setting Drift Two separate data sets were created which are included as Attachment A and B for the voltage and time delay drift numbers respectively. This data is contained in the Excel

spreadsheet file IC33.XLS. See Table under Assumption 5.10.

7.4.4.1. Surveillance As-Found/As-Left Data ne surveillance as-found/as-left p.ckup and time delay relay data recorded on the test data sheets l provided in Reference G.5. were entered into the appropriate spreadsheets. He surveillance test data sheets document the calibration and maintenance performed on the relays. Any pertinent maintenance information is entered into the comments section of the spreadsheet. The day, month and year that each surveillance procedure was performed, was entered beside each set of as-found/as-left readings. Per Reference G.I. an Excel @ function, which determines the number of days between two dates, was used to determine the length (in days) of each surveillance interval. I yr to 2yr Surveillance interval (days) = (as-found date - 2yr Previous as-left date) This method is the Sliding Filter Approach as described in Appendix H of Ref.G.I. This approach allows use of one year surveillance intervals for two year drift determination (Assumption 5.9). If the surveillance interval calculated above was less than.148 days (24 months-25%) or greater than 912 days (24 months +25%) then the data point was removed. After the above conversions are complete then the as-found / as-left data, as well as the final drift number, is considered good for 24 months i 25% which is a maximum of 30 months. Raw drift data points were then created by using the following equation to create each point: Raw Drift Data Point = (as-found value - 2yr Previous as-left value) /(Voltage or Time Delay Setting) 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 K..D 11/23/98 DUKE JOB No. 00087.03.0007.33 PAGE O GWS 6/30/97 SKV 6/30/97 _ Engineering CALC No. PBNP-IC-33 11 REV BY DATE CHECKED DATE & Services of29 Ic33r1. doc

.. - ~. - - - -... ~ -, - ~~ -. --.-. - --~.. -c*. 6 [- If an adjustment was made between the as-left value and the as-found value then per Ref. G.I. the -I L data point was removed from the data set. Excel @ functions AVERAGE, STDEV, and COUNT were used to' determine the mean, standard deviation, and the number of data points respectively in each raw data set. i 7.4.4.2.~ Outlier Identification L ~ i l The outlier identification procedure described in Reference G.I. was employed to identify possible outliers. Briefly, the absolute value of the drift data minus the data set mean is compared to the Outlier Criteria Multiplier multiplied by the data sample standard deviation. The values that do not satisfy the following inequality are identifled as outliers and are removed from the data set. IFlD, -- ADl < (OC e SD) then D,is not an Outlier ' l where i D, = "x"th drift value in the raw' data set AD = Average of the data set OC = Outlier Criteria - SD = Standard Deviation of the data set I - The outlie criteria were selected from TABLE A of Appendix H of' eference G.I. (See also R ~ TABLES! of Excel @ file IC33.XLS) based on the number of data points in the given data set. If ~ the number of da'a points in the given data set is not represented in the table, linear interpolation was used to determine the appropriate criteria value. The data sets with the outliers identified and removed are beside the columns of the spreadsheet containing the raw data sets. The mean standard deviation and the number of data points per data set were recalculated for the data sets with outliers and other filtered data removed. 7.4.4.3. Descriptive Statistics and Drift. The final outlier filtered column of data was copied to the next column, if the total number of remaining points after outlier filtering was 95% of the raw data set number of points or greater, and then sorted in ascending order using the Excel @ sorting capabilities. Beside the column of sorted 1 data, data points are rounded to five decimal places and then displayed to three decimal places in 4 l percent of voltage or time delay setting. This column of sorted, rounded data is the data set that is used to calculate the drift value. This column is also analyzed for normalcy and used for the . normal approximation of a binomial discussed in Section 7.4.4.4. below. The " Descriptive Statistics" function in Excel @ was used to generate the following statistical characteristics for each data set:

Mean Standard Error Median Mode
Standard Deviation L

Sample Variance

Kurtosis l

L 4.16KV Reactor Trip Undervoltage l' Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Projat l 1 GWS 11/23/98 KLD 11/23/98 DUKE l JOB No. 00087.00.0007.33 PAGE -0 GWS ' 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 12 REV BY-DATE CHECKED DATE & Services of29 . Ic33r1. doc -p w-g 9 4 ,-,y-,4-y- y mm +---s-- -w--g y w g- .ny-g o-e

Skewness Range Minimum MaMmum Sum
Count Codidence Level (95%/95%)

l The items above with an asterisk are used in the drift analysis. The other statistical values are not required. Beneath the column of data containing the " Descriptive Statistics," the 95% Probability / 95% Confidence Multiplier and 95%/95% drift value are entered. The 95% Probability / 95% Confidence Multiplier is obtained from Table A of Appendix H of Reference G.I. hased on the number of data points available. i The drift is calculated by taking the 95% Probability / 95% Confidence Multiplier times the J standard deviation of the data set. If a bias is indicated (see Assumption 5.3) then the mean of the data is not added to the drift but is used later to determine the overall device drift. If no bias is indicated then the absolute value of the mean of the data is added to the drift value. 7.4.4.4. Tests for Normalcy Normalcy testing is performed on each data set to determine ifit is normal or bounded by a normal curve. There are four tests which are performed in this calculation: Skewness Kurtosis J Probability Plot Histogram An evaluation of these tests is given below. 7.4.4.4.1. Skewness and Kurtosis Skewness is the third moment around the mean (average) of the data and is used to describe the synunetry of the distribution. The Skewness should show that the data is symmetrical around the mean if the distribution is normal. The Skewness should be equal to zero to demonstrate the symmetry. l The equation for Skewness (gi) is defined as (Per Ref. G.I.): M, gi= M $2 standard version 2 N 'JN. (N - 1) ' M I g' = (N - 1)(N - 2) { (x - y)3 = 3 Excel @ version N-2 M c s s 2 1 I i 4.16KV Reactor Trip Undervoltage i Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE 0 GWS 6/30/97 SKV , 6/30/97 Engineering CALC No. PBNP.IC-33 13 l REV BY DATE CHECIWD l DATE & Services of29 ic33r1. doc

.. -= - .= a [(x-y)2 ' N - l' 2 where: M ae 2 i N <N> g _1(I-X)' N j x = data set points X = Mean of the data set c = Standard Deviation of the Data set N = total number of data points in the data set [(x-y)2

]M y

a= = 2 N-1 N-1 The Excel @ value obtained for Skewness is compared with the number obtained from Table B of i Appendix H of Reference G.I. This number is the distribution of Skewness at 5% and is selected based on the number of points in the data set. If the calculated value of Skewness is greater than or equal to the value from Table B, then the data set may not be normally distributed. In this case the Skewness is said to be "Significant." If the number of data points is less than 25 then a Skewness test cannot be performed. Kurtosis is a function of the fourth moment about the mean and is a measurement of the peakedness l of the data distribution (Ref. G.I.). Table C of Appendix H of Reference G.I. provides Kurtosis criteria values for data sets that have 50 data points or greater. In this case both data sets had 50 or greater points, thus the values for Kurtosis could be determined by matching the number of data points to Table C for the computed Kurtosis (b ) whichis: 2 b = [(x - y)* 2 [(x - y)2 I where: x = data set points X = Mean of the data set The b2 Kurtosis value is then compared to Table C of Appendix H of Reference G.I. If this Kurtosis value is within the range defined by the table then the Kurtosis is said to be " insignificant" and the data set may be normal. If the value is not within the range then the Kurtosis is said to be "Significant" and it is unlikely that the data set is normal. The same test is performed on the Excel @ generated Kurtosis value (g2) which is compared to Table D of Appendix H of Reference G.I. The following are the standard and Excel @ equations for 82: g2 0 -3 standard version 2 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation I PBNP Setpoint Verification Project ~ l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE O GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 14 REV BY DATE CHECKED DATE & Services of29 Ic33r1. doc l

(N ~ l) (# + 1) 4 - 3 Emel@ version E= 2 _(N - 2)(N - 3), ,,(y _ ;) where b, = Nd M,' M = [ (N#) g2. #~ l 2 y (x - y)* N x = data set points N = total number of data points in the data set 3 x = Mean of the data set a = Standard Deviation of the data set If this Kmtosis value is within the range defined by Table D then the Kurtosis is said to be ) " Insignificant" and the data set may be normal. If the valueis not within the rangelhen the Kurtosis is said to be "Significant" and the data set may not be normal. j l The Skewness and Kurtosis values calculated for each data set are presented below. Data Sets Voltage Time Delay Count 59 57 Skewness 0.470 1.098 Skewness Significant? No Yes Kurtosis b2 Value 2.991 3.967 Kurtosis b2 Significant? No Yes Kurtosis g2 Value 0.099 1.170 Kurtosis g2 Significant? No Yes From the table above it can be seen that the voltage data set passed both the Skewness and Kurtosis tests. This shows that the voltage data set might be normally distributed. The time delay data set failed the Sk:wness and Kurtosis tests. This shows that the time delay data set may not be normally distributed. 7.4.4.4.2. Probability and Histogram Plots Per Reference G.I. a probability plot is a plot of the cumulative distribution function (CDF) of the data against a special grid. The grid is arranged such that, if the data in the data set is normally distributed, a plot of the data's CDF will lie in a straight line having a slope equal to the standard deviation of the data and a y-intercept equal to the mean of the data. Per Reference G.I. the probability plots are used to qualitatively examine the distribution of the data and determine ifit is normal. To aid in the evaluation of the probability plot and provide a n.cthod of comparison, a straight line having the slope and y-intercept indicated is also plotted on the grid. The evaluation of the probability plot is a discussion comparing the probability plot and the straight line representing a normal distribution for each data set. Ideally the probability plot 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE O GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 15 REV BY DATE CHECKED DATE & Services of29 Ic33r1. doc

I 3 will lie directly on top of the normal distribution's straight line, however, since the data sets represent only a sample of the entire population, it is acceptable if the probability plot approximates the straight line representing the normal. The probability plots for the drift data are available in the associated appendices A and B for the l drift calculations. In general the data sets may not be normally distributed due to the lines falling well away from the normal distribution. Another test for normalcy is the Histogram Plot. This plots the frequency of occurrence of data with a specific value versus the range of values the data can have. This is useful in showing the actual distribution curve of the data to see if the standard bell-shaped cun'e is apparent. The histogram is generated by comparing the data set with a " bin" which is a series of numbers that are selected to contain the data set. This bin is chosen so that it contains the data set and has enough resolution of munbers in order to create the histogram. The histogram is then generated showing the number of times a certain bin number is " hit." If the data set is normal it should l create a bell shaped distribution around a mean of zero(0). The histogram plots for the drift data are available in the associated appendices A and B for the drift calculations. Neither of the histograms show the normal distribution cun'e for the data sets, therefore the data sets may not be normal. 7.4.4.4.3. Normalcy Conclusions and Binomial Approximation Given the four tests performed above it was concluded that the data sets may not be normally distributed. Thus a normal approximation of a binomial was performed on the data sets to validate that the drift value calculated using a normal distribution is a valid 95% probability / 95% confidence bound of the drift. The binomial approximation involved comparing a selected drift value against the absolute value of the difference between each data point and the mean. If a data point met this condition then it is i considered to be part of the binomial distribution. The criteria is adjusted until 95% or more of the points are within the distribution. This criteria is then considered to be the drift value. Since in both cases a binomial approximation was used, the initial value used is the drift normal distribution value originally computed. The number is approximated using the following equations for binomial approximation (Reference G. I.): X = dx(n)- yl < (o-

m /95 + X))

95 X'= X N Note: included if there is no bias indicated N P - lower = X'-1.96QX'* (1 - X') / N where: X = the total number of data points that have satisfied the inequality. x(n) = individual data points of the data set. y = mean of the data set. o- = standard deviation of the data set. 4.16KV Reactor Trip Undervoltage Matrix Relavs Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 16 REV BY DATE CHECKED DATE & Senices of29 Ic33r1. doc

. _ __..~. _. _ _.. ..s L X' " percentage of data points that have satisfied the inequality, his is the percent l probability of the Nnomial approximation. l .N = total number of data points ia the data set. - m,3,93 = 95% probability / 95% confidence multiplier. P lower = X' converted to percent confidenc : of the binomial approximation. The X' and P lower values are essentially the 95% probability / 95% confidence levels for the binomial approximation. These are calculated using the equations above and the initial drift value (standard deviation multiplied by the 95/95 multiplier). The goal is to have both X' and P lower be l both equal to or greater than 95%. If the initial drift value fails to do this then a new criteria is chosen that does satisfy the inequality 95% of the time with a 35% confidence level. Thus the New X equation would be: l New ~ X = [ }x(n)-xl < (new ~ criteria) l The new criteria number thus becomes the drift value for 95% probability / 95% confidence of the binomial approximation when it satisfies the inequality for 95% or greater and causes P lower to be i also greater than or equal to 95%. l These drift values are presented in Section 8.1 Notes 2 and 11 for the Voltage and Time Delay settings respectively. 7.4.5. Acceptable As-Left and As-Found Tolerances for Calibration Per Reference G.! the equations that calculate the Acceptable As-Found and Acceptable As-Left calibration tolerances are listed below. g Per Reference G.I. the Voltage Acceptable As-Left (VAL) Tolerance is equivalent to the voltage setting tolerance. In this case the voltage setting has a different positive and negative setting tolerance. j Therefore: VAL + = iv+ VAL = tv-1 f.. Per Reference G.I. the Time Delay Acceptable A;-Left (TDAsL) Tolerance is equivalent to the time delay setting tolerance. l i rtdv TDAst = Per Reference G.I. the Voltage Acceptable As-Found (VAF) Tolerance is equivalent to the SRSS of the setting tolerance and the drift value. Since the voltage setting has a different positive and negative setting tolerance: [(rv+)2 + (rd)2 jin l VAF+ = [(rv-)2 + (rd)2 jin VAF- = l Per Reference ~G.I. the Time Delay Acceptable As-Found To erance (TDAF) is equivalent to the SRSS of the time delay setting tolerance and the time delay drift value. i[(rtdv)2 + (rtdd)2 ji/2 l TDAF = 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE l 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 17 l. REV BY-DATE CHECKED DATE & Scp; ices of29 I Ic33r1. doc

. c.. m 'l For the As-Left / As-Found Range around the ATSP the following equations are used: J. ATSP + [VAF+] = ATSP + ([VAF+]

ATSP)

ATSP + [ VAL +] = ATSP + ([ VAL +]

ATSP)

ATSP - [ VAL-] = ATSP -([ VAL-]

ATSP) l-ATSP - [VAF-] = ATSP - ([VAF-]
ATSP)

TD ATSP iTDAst = TD ATSP t (TDAsL

TD ATSP)

TD ATSPiTDAF = TD ATSPirIDAF

TD ATSP)

I L l -l-I i 8.0.', BODY OF CALCULATION il 1 - 8.1. Device Uncerta'nty Notes l-From Ref. G.I., the drift values calculated from as-found/as-left calibration data normally include the error effects under normal conditions of drift, accuracy, power supply, plant vibration, calibration j i temperature, normal radiation, normal humidity, M&TE used for calibration, and instrument readability. -l Since the calibration conditions are indicative of the normal operating conditions, the erwironmental effects do not need to be included separately. All device uncertainty terms are considered random and independent unless otherwise noted. l l. Uncertainties apply to all relays listed in Section 7.2 unless otherwise noted. - l Note 1. - Relay Accuracy l From the PBNP Setpoint Methodology (Ref. G.I.), when drift error values are derived from as-found/as-l left calibration data, the resultant drift term includes the effects of accuracy. Linearity, which is a l contributor to accuracy, is included in the as-found/as-left drift values calculated in this section under i Note 2. f. .li 0.000 % of tap setting ra = i. Note 2. - Relay Drift Using the methodo.ogy described in Section 7.4.4 of this calculation the Voltage Setting Drift was 1 1 determined to be (see Attachment A)- i i 0.824% of tap setting rd = l . l . This drift value is computed for 24 months i25%. - L l: . There is a bias assxiated with this drift term (Assumption 5.3) which is equal to the mean of the data set l .(see Attachment A): l I rd_ bias = +0.101% of tap setting i l 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project -l 1 GWS 11/23/98 KLD-11/23/98 DUKE JOB No. 00087.00.0007.33 r[GE O GWS 6/30/97-SKV 6/30/97 Engineering CALC No. PBNP-lC-33 18 o REV BY DATE CHECKED DATE & Services of29 h Ic33r1. doc i, -

^ Note 3. - Relay M&TE From the PBNP Setpoint Methodology (Ref. G.I.), the M&TE effect is included in the as-found/as-left statistical drift value for the relays which is calculated in this section under Note 2 above (Assumption I 5.8). Therefore M&TE error for the relays is considered to be equal to zero. i 0.000 % of tap setting rm = Note 4. - Relay Setting Tolerance l The setting tolerances for the relays as shown in the calibration procedures (Refs. P.S. and P.6.) are: +2.000% % of tap setting rv+ = -0.200% % of tap setting rv- = (See Assumption 5.13) Note 5. - Relay Power Supply Effect From the PBNP Setpoint Methodology (Ref. G.I.), the power supply effect is included in the as-found/as-left statistical drift value for the relays which is calculated in this section under Note 2 above. Therefore Power Supply error for the relays is considered to be equal to zero. rp i 0.000% of tap setting = l Note 6. - Relay Temperature Effect From the PBNP Setpoint Methodology (Ref. G.I.), the temperature effect is included in the as-found/as-i left statistical drift value for the relays which is calculated in this section under Note 2 above. Also the switchgear room is assumed to be an emironmentally controlled area (Assumption 5.6). Therefore temperature effect error for the relays is considered to be equal to zero. 0.000% of tap setting rt = Note 7. - Relay Humidity Effect From the PBNP Setpoint Methodology (Ref. G.I.), the humidity effect is included in the as-found/as-left statistical drift value for the relays which is calculated in this section under Note 2 above. Also the switchgear room is assumed to be an emironmentally controlled area (Assumption 5.6). Therefore humidity effect error for the relays is considered to be equal to zero. i 0.000 % of tap setting rh = Note 8. - Relay Radiation Effect The relays are located in the switchgear room, which is not a radiologically controlled area. Also any normal cumulative radiation effect is included in the as-found/as-left statistical drift value for the relays which is calculated in this section under Note 2 above (Ref. G.I.). Therefore radiation effect error for the relays is considered to be equal to zero. i 0.000 % of tap setting rr = 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 19 REV BY DATE CHECKED DAE & Senices of29 Ic33r1. doc

l \\_ I Note 9. - Relay Seismic Effect Per Assumption 5.7 for seismic events less than an OBE, no permanent shift in the relay input / output relationship occurs and for seismic events greater than OBE, instmmentation will be recalibrated. Also from the PBNP Setpoint Methodology (Ref. G. I.), any normal vibration effect is included in the as-found/as-left statistical drift value for the relays which is calculated in this section under Note 2 above. Therefore seismic effect error for the relays is considered to be equal to zero. t 0.000 % of tap setting rs = } Note 10. - Relay Time Delay Accuracy l From the PBNP Setpoint Methodology (Ref. G.I.), when drift error values are derived from as-found/as-l left calibration data, the resultant drift term includes the effects of accuracy. Linearity, which is a ) l contributor to accuracy, is included in the as-found/as-left drift values calculated in this section under l Note 11 below. Therefore, the accuracy for the time-delay portion of the relay is considered to be zero. i 0.000 % of time delay setting rtda = l Note 11. - Relay Time Delay Drift Using the methodology described in Section 7.4.4 of this calculation the Time Delay Setting Drift was.. l l determined to be (see Attachment B): 'i5.951% of time delay setting rtdd = This drift value is computed for 24 months 25%. The drift calculation indicates that no bias is present (see Assumption 5.3). rtdd bias = 0.000% of time delay setting Note 12. - Relay Time Delay M&TE From the PBNP Setpoint Methodology (Ref. G.I.), the M&TE effect is included in the as-found/as-left statistical drift value for the relays (Assumption 5.8.). The drift value is presented in this section under Note 11 above. The M&TE error for the Relay Time Delays is considered to be equal to zero. l rtdm = 10.000 % of time delay setting l Note 13. - Relay Time Delay Setting Tolerance The setting tolerance forthe Relay Time Delays as shown in the calibration procedures (Refs P.S. and d P.6.) is 15.000% for time delay settings s 1 second. rtdv = i 5.000% of time delay setting which is 0.5 seconds Note 14. - Relay Time Delay Power Supply Effect From the PBNP Setpoint Methodology (Ref. G.I.), the power supply effect is included in the as-found/as-left statistical drift value for the relays which is calculated in this section under Note 11 above. Therefore Power Supply error for the time delay portion of the relays is considered to be equal to zero. l Itdp = i 0.000% of time delay setting i 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS

1/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE 0

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l Note 15. - R 15y Time Delry Temperature Effect [ From the PBNP Setpoint Methodology (Ref. G.I.), the temperature effect is included in the 1s-found/as-I left statistical drift value for the relays which is calculated in this section under Note 11 above. Also the switchgear room is assumed to be an environmentally controlled area (Assumptica 5.6). Therefore temperature effect error for the time delay portion of the relays is considered to be equal to zero. rtd'. : 10.000% of time delay setting Note 16. - Relay Time Delay Humidity Effect From the PBNP Setpoint Methodobyy (Ref. G.I.), e humidity effect is included in the as-found/as-left statistical drift value for the relays which is calculated in this section under Note 11 above. Also the switchgear room is assumed to be an environmentally controlled area (Assumption 5.6). Therefore humidity effect error for the time delay portion of the relays is considered to be equal to zero. i rtdh = i 0.000 % of time delay setting l Note 17. - Relay Time Delay Radiation Effect The Relay Time Delays are located in the switchgear room, which is not a radiologically controlled area. Also any normal cumulative radiation effect would be included in the as-found/aWt statistical drift value for the time delay portion of the relays which is calculated in this section under Note 11 above. Therefore radiation effect error for the time delay portion of the relays is considered to be equal te zero, rtdr = 0.000 % of time delay setting Note 18. - Relay Time Delay Seismic Effect Per Assumption 5.7 for seismic events less than an OBE, no permanent shift in the relay input / output relationship occurs and for seismic events greater than OBE, instrumentation will be recalibrated. Also from the PBNP Setpoint Methodology (Ref. G.I.), any normal vibration effect is included in the as-found/as-left statistical drift value for the relays which is calculated in this section under Note 11 above. Therefore seismic effect error for the time delay portion of the relays is considered to be equal to zero. rtds = i 0.000 % of time delay setting i Note 19. - Potential Transformer Error i Per Assumption 5.5 the potential transformer error is: pte = i 1.200% of tap setting This error is not applied to the time delay portion of the relay. 8.2. Device Uncertainties Note: 'l 273/274 Series Relay Tap Setting = 90 volts 273/274 Series Relay Time Delay Setting = 0.5 seconds (. Uncertainty values of zero are not shown on the table. i 1 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Serpoint Calculation l PBNP Setpoint Verification Project l ,1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE O GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 21 j REV BY DATE CHECKED DATE & Ser ices of29, ic33r1. doc

l: l-l' l ' Parameter Uncertainty Relay Accuracy See Note 1. Relay Drift See Note 2. (rd) 0.824% tap setting (rd_ bias) +0.101% tap setting i l. i .l Relay M&TE See Note 3. Relay Setting Tolerance. - See Note 4. (rv+) +2.000% tap setting (rv-) - 0.200% tap setting Relay Power Supply Effect See Note 5. Relay Temperature Effect See Note 6. l Relay Humidity Effect See Note 7. l Relay Radiation Effect See Note 8. Relay Seismic Effect See Note 9. Relay Time Delay Accuracy See Note 10. I Relay Time Delay Drift See Note 11. (rtdd) i 5.951%TD settitig 1 Relay Time Delay M&TE See Note 12. Relay Time Delw Setting Tolerance See Note 13. -l (rtdy) 5.000% TD setting i Relay Time Delay Power Supply Effect - See Note 14. Relay Time Delay Temperature Effect See Note 15. Relay Time Delay Humidity Effect See Note 16. Relay Time Delay Radiation Effect See Note 17. Relay Time Delay Seismic Effect See Note 18. PotentialTransformer Error See Note 19. l (pte) il.200% of tap setting 4.16KV Reactor Trip Undenoltage Matrix Relays Uncertainty / Setpoint Calculation l PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP lC-33 22 REV BY DATE CHECKED DATE & Services of29 Ic33r1. doc s

8.3. Uncertainty. Allowances and Total Loop Errors 8.3.1. Voltage Trip Uncertainty Allowances and Tota! Loop Error The applicable device uncertainty terms determined in Section 8.1. and summarized in Section 8.2. are l combined into the following Voltage Trip Uncertainty Allowances (Only non-zero terms are shown): (rd)2 (i0.824 % / 100 %)2

100 % = 0.007% of tap setting Trip D

= = rd_ bias = +0.101% of tap setting = (rv+)2 = +(2.000% /100%)2

100%

= +0.040% of tap setting Trip V+ = (rv-)2 = -(0.200% /100%)2

100%

= -0.0004% of tap setting Trip V- = (pte)2 (il.200 % / 100 %)2

100 % = 10.014% of tap setting Trip PT

= = Combining the applica'ule uncertainty allowances, the Trip TLE and the Trip RE (positive and negative) equations for a trip under normal conditions becomes (only non-zero terms are shown):: Trip TLEpos= + (Trip D + [ Trip V+] + Trip PT)l'2 + rd_, bias + ((0.007%+0.040%+0.014%)/100%)l4

100% + 0.101%

= + 2.575% of tap setting = Trip TLEneg= -(Trip D + [ Trip V ' + Trip PT)t/2 -((0.007%+0.0004%+0.014%)/100%)1/2

100%

= - 1.469% of tap setting = Trip RE pos = + (Trip D + [ Trip V+])la + rd._ bias + [((0.007%+0.040%)/100%)1/2

100%] + 0.101%

= + 2.265% of tap setting i = Trip RE neg = - (Trip D + [ Trip V-])1/2 -((0.007%+0.0004%)/100%)t/2

100%

= - 0.848% of tap setting = 8.3.2. Time Delay Trip Uncertainty Allowances and Total Loop Error The applicable device uncertainty terms determined in Section 8.1. and summarized in Section 8.2. are l combined into the following Time Delay Trip Uncertainty Allowances (only non-zero terms are showt): (rtdd)2 = (iS.951%/100%)2

100 % = i0.354% of time delay setting TD Trip D

= (rtdv)2 = (i5.000%/100%)2* 100 % = i0.250% of time delay setting TD Trip V = Combining the applicable uncertainty allowances, the TLE equation for a trip under normal conditions becomes: i(TD Trip D + TD Trip V)t/2 TD Trip TLE = i((0.354% + 0.250% )/100%)1/2

100%

= i 7.773% of time delay setting = 4.16KV Reactor Trip Undervoltage Matrix Relavs Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-lC-33 23 l REV BY DATE CHECKED DATE & Senices of 29 Ic33r1. doc

-~ ..m = _.. _ i l l Since there is no Trip PT term for the time dehy setting the TD Trip RE value is equal to the TD Trip TLE value. l TD Trip RE = TD Trip TLE = i 7.773% of time delay setting l 8.4. Acceptable As-Left and As-Found Tolerances for Calibration f The PT and TLE terms calculated in Section 8.1 and summarized in Section 3.2 are combined into the Acceptable As-Found and Acceptable As-Left calibration tolerances. 8.4.1. Individual Acceptable As-Left Tolerances . The Voltage Acceptable As-Left Tolerance applies to the relays and is equivalent to the voltage setting l tolerances. VAL + = rv+ = +2.000% of voltage se: point = tv = - 0.200% of voltage setpoint VAL-The Time Delay Acceptable As-Left Tolerance applies to the relays and is equivalent to the time delay setting tolerance. l-TDAsL

= rtdv=

5.000% of time delay setpoint 8.4.2. Individual Acceptable As-Found Tolerances i The Voltage Acceptable As Found Tolerance applies to the relays and is equivalent to the SRSS of the l setting tolerance and the drift value calculated in Note 2 of Section 8.1 above. +[(rv+)2 + (rd)2 j!n + rd_ bias VAF+ = 1 +{[(2.000W100%)2 + (0.824W100%)2 3 a

100%} + 0.101%

= +2.265% of the voltage setpoint l = -[(rv-)2 + (rd)2 jin VAF- = -[(0.200W100%)2 + (0.824W100%)2 jla

100%

= -0.848% of the voltage setpoint = The Time Delay Acceptable As-Found Tolerance applies to the relays and is equivalent to the SRSS of the l time delay setting tolerance and the time delay drift value calculated in Note 11 of Section 8.1 above, t i[(ndy)2 + (ndof 110 TDAF = [(5.000W100%)2 + (5.951W100%)2 jin

100%

= 7.773% of the time delay setpoint = l; il' 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 24 REV BY-DATE CHECKED DATE & Services of29 L = ic33r1. doc l ~

i ,a l' l~ r L 8.5. Setpoint Evaluation i l Using the methodology defined in Reference G.I. and summarized in Section 7.4.2 the following iteins will be calculated: NominalTrip Set point (NTSP) j Allowable Value (AV) l' Check Limits 1 & 2 (CL1 & CL2) NTSP As-left and As-found tolerances E ATSP As-left and As-found tolerances j l 8.5.1. Nominal Trip Setpaint and Allowable Value for the Voltage Setting l From Section 7.4.2 the Nominal Trip Setpoint (NTSP) is calculated using the following equation: l NTSP = AL + (TLE

ATSP)

] 1 l where AL = AnalyticalLimit TLE = Total Loop Error ATSP = Actual Trip Setpoint l For the reactor trkp relay the Analytical Limit (AL) is 2,842.1 volts as defined in Section X. of Reference j i l C.1. 2842.1/35 = 81.20 Vac. The TLE for the voltage setting is calculate d.n Section 8.3.1 and the ATSP l is given in References P.S., P.6., and G.9. as: 90.00 Vac ATSP = The NTSP can then be calculated using the positive TLE since this is a channel with a decreasing setpoint towards the AL (Ref. G.I.): l NTSP = AL + (Trip TLEpos

ATSP)

= 81.20Vac + (2.575%

90.00Vac) l

= 83.52 Vac The Allowable Value (AV) can also be calculated: l. ATSP -(fl' rip REnegl

ATSP)

AV = 90.00Vac -(l-0.848%l

90.00Vac)

= '89.24 Vac = l The AV is checked using the following two tests as defined in Section 7.4.3: CL1 = AL + (pte

ATSP)

CL2 = NTSP -(Trip RE

ATSP) l AL + (pte
ATSP)

CL1' = 81.20Vac + (1.200%

90.00Vac)

= 82.28 Vac = 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 25 REV BY DATE CHECKED DATE & Services of29 Ic33r1. doc

m NTSP -(l Trip REnegl

ATSP)

CL's, s = l 83.52 Vac - (l-0.848%l

90.00Vac)

= l 82.76 Vac = The AV is considered acceptable since it is conse.wative with respect to CLI and CL2 (Ref. G.I.). Given the NTSP calculated above, the margin between the ATSP and the NTSP may be computed: I Voltage Setpoint Margin = ATSP - NTSP = (90.00 - 83.52) Vac = 6.48 Vac l Since the above margin is positive the ATSP is considered acceptable given the AL and the calculated i NTSP. l l According to the Technical Specifications the 273/274 series relay Tech Spec Limits are all equal to 2 89.15 Vac which is (Ref. G.6. (c))"275% of normal voltage" (see also Section 6.1). Given the computation of AV above the Tech Spec Margin may be computed: i i Tech Spx Margin = AV - Tech Spec = (89.24 - 89.15) Vac = 0.09 Vac l Since the above margin is positive, the AV and the ATSP is considered acceptable with regard to the Tech l Spec value. 8.5.2. Nominal Trip Setpoint and Allowable Value for the Time Delay Setting l From Section 7.4.2 the Nominal Trip Setpoint (NTSP) for the Time Delay (TD) setting is calculated using the following equation: l TD NTSP = TDAL -(TD Trip TLE

TD ATSP) where TDAL

= Time Delay Analytical Limit TD Trip TLE = Tinie Delay Trip Total Loop Error TD ATSP = Time Delay Actual Trip Setpoint p The signs are negative as the shorter time spans are more conservative. The time delay analytical limit (TDAL) is given from Ref. C.I. (see Assumption 5.11): I 1.500 seconds TDAL = The TD Trip TLE is calculated in Section 8.3.2 and the TD aTSP is given in References P.S., P.6., and G.9. as: 0.500 seconds TD ATSP = The TD NTSP can then be calculated: TD NTSP = TDAL -(TD Trip TLE

TD ATSP)

= 1.500 sec -(7.773%

0.500 sec) l

= 1.461 seconds i i 4.16KV Reactor Trip Undezvoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE O GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 26 f REV BY DATE CHECKED DATE & Services of29 i Ic33r1. doc l

%f The TD AV can also be calculated. Note that the TD Trip RE term is equal to the TD Trip TLE term for l the time delay setting (see Section 8.3.2). TD AV = TD ATSP + (TD Trip RE

TD ATSP) 0.500 sec + (7.773%* 0.500 sec)

= 0.539 sec = l The TD AV is checked using the following two tests as defined in Section 7.4.3: TD CLI = TDAL -(Trip PT

TD ATSP)

TD CL2 = TD NTSP + (TD Trip TLE

TD ATSP)

Note that for the time delay settings the PT / process effect is not considered (see Section 7.4.3) and the TD Trip RE term is equal to the TD Trip TLE term for the time delay setting (see Section 8.3.2). Therefore for the time delay setting: l TD CL1 TDAL -(0

TD ATSP)

= 1.500 sec -(0.000%

0.500 sec)

= l 1.500 sec = TD NTSP + (TD Trip RE

TD ATSP)

TD CL2 = - 1.461 seconds + (7.773%

0.500 sec)

= 1.500 sec = k The TD AV is considered acceptable since it is conservative with respect to CLI and CL2 (Ref. G.I.). Given the TD NTSP calculated above the margin between the TD ATSP and the TD NTSP may be computed: TD Setpoint Margin = TD NTSP 'l D ATSP = (1.461 - 0.500) seconds = 0.961 seconds Since the above margin is positive the TD ATSP is considered acceptable given the TDAL and the calculated TD NTSP. l 8.5.3. ATSP As-Left / As-Found Tolerance Ranges Using the equations defir.ed in Section 7.4.5 the ATSP as-left / as-found tolerances can now be calculated. All results are summarized in the tables of Section 9.0. ATSP + VAF = ATSP + ([VAF+]

ATSP) = 90.00 Vac + (2.265%
90.00 Vac) = 92.04 Vac ATSP + VAL = ATSP + ([ VAL +]
ATSP) = 90.00 Vac + (2.000%
90.00 Vac) = 91.80 Vac ATSP - VAL = ATSP -([ VAL-]
ATSP) = 90 00 Vac -(0.200%
90.00 Vac) = 39.82 Vac ATSP - VAF = ATSP -([VAF-]
ATSP) = 90.00 Vac -(0.848%
90.00 Vac)= 89.24 Vac TD ATSP - TDAF = TD ATSP -(TDAF
TD ATSP) = 0.500 sec -(7.773%
0.500 sec),0.461 sec TD ATSP - TDAsl = TD ATSP -(TDAsL
TD ATSP) = 0 500 see -(5.000%
0.500 see) = 0.475 see TD ATSP + TDAsL = TD ATSP + (TDAsl
TD ATSP) = 0.500 sec + (5.000%
0.500 sec)= 0.525 see TD ATSP + TDAF = TD ATSP + (TDAF
TD ATSP) = 0.500 sec + (7.773%
0.500 sec) = 0.539sec

~ 4.16KV Reactor Trip Undervoltage Matrix Relays ' Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00037.00.0007.33 PAGE 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-33 27 REV BY DATE C FKED DATE & Services of 29 Ic33r1. doc

9.0. CONCLUSIONS The tables below list the Voltabe and Time Delay Setpoints and other data determined in this calculation for each relay series. Relays 273/274 Series l l Voltage Settings Summary Time Delay Settings Summary ATSP +VAF 92.04 Vac TD ATSP IDAF 0.461 seconds ATSP + VAL 91.80 Vac TD ATSP TDAsl 0.475 seconds ATSP 90.00 Vac TD ATSP 0.500 seconds ATSP - VAL 89.82 Vac TD ATSP

TDAsL 0.525 seconds ATSP - VAF 89.24 Vac TD ATSP + TDAF O.539 seconds AV 89.24 Vac TD AV 0.539 seconds Tech Spec 89.15 Vac Max UV Reiay Delay
0.559 seconds NTSP 83.52 Vac TD NTSP 1.461 seconds CL2 82.76 Vac TD CL2 1.500 seconds CL1 82.28 Vac TD CL1 1.500 secor ds AL 81.20 Vac lTD AL 1.500 seconds This calculation has been done in accordance with Reference G.I. and can be used to set the relays per References P.S. and P.6. As shown in the table above, the existing reactor trip relay voltage and time delay setpoints (ATSP) are currently acceptable with respect to the Tech Spec, Analytical Limit, Allowable Value, and the calculated NTSP.
The maximum undervoltage relay delay (Max UV Relay Delay) shown in the table above was taken 1

from Revision 0 of this calculation and is used in Ref. C.1, in order to calculate the AL. Since this maximum delay value is conservative with respect to the revised calculated TD Allowable Value and TD Acceptable As-Found values it may be maintained within Ref. C.I. as the maximum relay delay so that no l revision to Ref. C.I. is necessary. l 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation PBNP Setpoint Verification Project l 1 GWS-11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE O GWS 6/30/97 SKV 6/30/97 Engirieering CALC No. PBNP-IC-33 28 REV BY DATE CHECKED DATE & Seniees of29 Ic33r1. doc,

l-I t 10.0. IMPACT ON PLANT DOCUMENTS l The followinF olant documents may be affected by this calculation: 10.1. 2RMP 9056-3; Calibration and Testing of Safety Rehted Protective Relays A-01/A Unit 2-Rev 5 - dated 12/12/97 l l 11.0. ATTACHMENTS l Attachment A UV-PUlIC33.XLS (12 pages) l UV-TDlIC33.XLS (11 pages) l_ Attachment C Reference V.I. (15 pages) Reference G.2 (1 pages) Attachment D Total : 39 attachmentpages l l I-i l 4.16KV Reactor Trip Undervoltage Matrix Relays Uncertainty / Setpoint Calculation i PBNP Setpoint Verification Project l l 1 GWS 11/23/98 KLD 11/23/98 DUKE JOB No. 00087.00.0007.33 PAGE l 0 GWS 6/30/97 SKV 6/30/97 Engineering CALC No. PBNP-IC-31 29 l_ REV BY DATE CHECKED DATE & Services of29 l ic33r1. dor. l..

PBNP-IC-33 UV-PU: By GWS ' l Attachment A Voltage Setting Drift Data 11/23/98 v f ~ First Second Rounded / Voltage Voltage Voltage Voltage Interval Outlier Outlier Sorted Sorted [ Relay Tag Calibration Drop-Out Drop-Out Drop-Out Drop-Out Length Raw Drift Drift Drift Drift Point Drift Point i Number Date AS-Status Point Set Point Low limit High Limit (Days) Comments Points Points Points Data Data 1-273/A01 13-Apr-87 AS FOUND 90.00 90.00 89.82 91.80 i 1 13-Apr-87 AS LEFT 90.00 90.00 89.82 91.80 [ 21-Apr-88 AS FOUND 89.70 90.00 89.82 91.80 Out of Tolerance -0.008 -0.778 % I 21-Apr-88 AS LEFT 89.70 90.00 89.82 91.80 -0.007 -0.722 % [ i 25-Apr-89 AS FOUND 90.04 90.00 89.82 91.80 743 0.044 % 0.044 % 0.044 % -0.006000 -0.600 % 25-Apr-89 AS LEFT 90.04 90.00 89.82 91.80 -0.005000 -0.500 % l 24-Apr-90 AS FOUND 89.91 90.00 89.82 91.80 733 0.233 % 0.233 % 0.233% -0.004778 -0.478 % [ 24-Apr-90 AS LEFT 89.91 90.00 89.82 91.80 -0.003000 -0.300 % 03-May-91 AS FOUND 90.46 90.00 89.82 91.80 738 0.467 % 0.467 % 0.467 % -0.003 -0.256 % I 03-May-91 AS LEFT 90.46 90.00 89.82 91.80 -0.00256 -0.256 % 12-May-92 AS FOUND 90.40 90.00 89.82 91.80 749 0.544 % 0.544 % 0.544 % -0.002222 -0.222 % l 12-May-92 AS LEFT 90.40 90.00 89.82 91.80 -0.002 -0.189% 28-Apr-93 AS FOUND 90.29 90.00 89.82 91.80 726 -0.169 % -0.189 % -0.189 % -0.001778 -0.178 % i 28-Apr-93 AS LEFT 90.29 90.00 89.82 91.80 -0.002 -0.156 % [ 09-Apr-94 AS FOUND 90.70 90.00 89.82 91.80 697 0.333 % 0.333 % 0.333 % -0.001111 -0.111 % ( 09-Apr-94 AS LEFT 90.08 90.00 89.82 91.80 Adjustment Made -0.00111 -0.111 % 06-Apr-95 AS FOUND 90.45 90.00 89.82 91.80 708 Removed Removed Removed -0.001 -0.100 % 06-Apr-95 AS LEFT 90.45 90.00 89.82 91.80 -0.000889 -0.089 % 09-Apr-96 AS FOUND 86.46 90.00 89.82 91.80 731 Out of Tolerance Removed Renioved Removed -0.001 -0.089 % I 09-Apr-90 AS LEFT 90.11 90.00 89.82 91.80 Adjustment Made -0.001 -0.067 % 12-Apr-96 AS FOUND 90.03 90.00 89.82 91.60. 372 Relay Replaced Removed Removed Removed -0.000556 -0.056 % 12-Apr-96 AS LEFT 90.03 90.00 89.82 91.80 -0.00011 -0.011 % 1-273/A02 13-Apr-87 AS FOUND 90.00 90.00 89.82 91.80 0.000 -0.011 % 13-Apr-87 AS LEFT 90.00 90.00 89.82 91.80 -0.000111 -0.011 % 21-Apr-88 AS FOUND 89.70 90.00 89.82

91.80 Out of Tolerance 0.000000 0.000 %

l 21-Apr-88 AS LEFT 89.70 90.00 89.82 91.80 0.000111 0.011 % 4 25-Apr-89 AS FOUND 90.05 90.00 89.82 91.80 743 0.056 % 0.056 % 0.056 % 0.000222 0.022 % 25-Apr-89 AS LEFT 90.05 90.00 89.82 91.80 0.000 0.044 % 24-Apr-90 AS FOUND 89.78 90.00 89.82 91.80 733 Out of Tolerance 0.089 % 0.089 % 0.089 % 0.000556 0.056 % [ 24-Apr-90 AS LEFT 89.78 90.00 89.82 i 91.80 0.000667 0.067 % ( 03-May-91 AS FOUND 90.50 90.00 89.82 91.80 738 0.500 % 0.500 % 0.500 % 0.001 0.089 % l 03-May-91 AS LEFT 90.50 90.00 89.82 91.80 0.000889 0.089% i c May-92 AS FOUND 90.27 90.00 89.82 91.80 749 0.544 % 0.544 % 0.544 % 0.001-0.089 % l 12-May-92 AS LEFT 90.27 90.00 89.82 91.80 0.001 0.111 % 28-Apr-93 AS FOUND 90.27 90.00 89.82 91.80 726 -0.256 % -0.256 % -0.256 % 0.001444 0.144 % 28-Apr-93 AS LEFT 90.27 90.00 89.82 91.80 0.001667 C. i67% j 12-Apr-94 AS FOUND 90.80 90.00 89.82 91.80 700 0.589 % 0.589 % 0.589 % 0.002 0.189 % j 12-Apr-94 AS LEFT 90.36 90.00 89.82 91.80 Adjustment Made 0.002 0.222 % l t ic33.xis Page 1 of 12 Checked KLD 11/23/98

P8NP-lC-33 UV-PU: By GWS Attachment A Voltage Setting Drift Data 11/23/98 06-Apr-95 AS FOUND 90.36 90 00 89.82 91.80 708 Removed Removed Removed 0.002333 0.233 % ~ 06-Apr-95 AS LEFT 90.36 90.00 89.82 91.80 0.002444 0.244 % 09-Apr-96 AS FOUND 90.36 90.00 89.82 91.80 728 0.000 % 0.000 % 0.000 % 0.003 0.278 % 09-Apr-96 AS LEFT 90.36 90.00 89.82 91.80 0.003000 0.300 % 1-274/A01 13-Apr-87 AS FOUND 90.00 90.00 89.82 91.80 0.003 0.300 % 13-Apr-87 AS LEFT 90.00 90.00 89.82 91.80 0.003 0.333 % 21-Apr-88 AS FOUND 89.90 90.00 89.82 91.80 0.003 0.333 % 21-Apr-88 AS LEFT 89.90 90.00 89.82 91.80 0.003667 0.367 % 25-Apr-89 AS FOUND 90.08 90.00 89.82 91.80 743 0.089 % 0.089 % 0.089 % 0.003889 0.389 % 25-Apr-89 AS LEFT 90.08 90.00 89.82 91.80 0.004111 0.411 % 24-Apr-90 AS FOUND 90.00 90.00 89.82 91.80 733 0.111 % 0.111 % 0.111 % 0.004 0.433 % 24-Apr-90 AS LEFT 90.00 90.00 89.82 91.80 0.004333 0.433 % 03-May-91 AS FOUND 90.00 90 00 89.82 91.80 738 -0.089 % -0.089 % -0.089 % 0.004444 0.444 % 03-May-91 AS LEFT 90.00 90.00 89.82 91.80 0.005 0.467 % 12-May-92 AS FOUND 89.84 90.00 89.82 91.80 749 -0.178 % -0.178 % ' -0.178% 0.005 0.467 % 12-May-92 AS LEFT 90.04 90.00 89 82 91.80 Adjustment Made 0.004778 0.478 % 28-Apr-93 AS FOUND 89.83 90.00 89.82 91.80 726 Removed Reidoved Removed 0.004778 0.478 % 28-Apr-93 AS LEFT 89.83 90.00 89.82 91.80 0.005 0.500 % 09-Apr-94 AS FOUND 90.43 90.00 89.82 91.80 697 OA33% 0.433 % 0.433 % 0.005 0.544 % 09-Apr-94 AS LEFT 90.43 90.00 89.82 91.80 0.005444 0.544 % 06-Apr-95 AS FOUND 90.56 90.00 89.82 91.80 708 0.811 % 0.811 % 0.811 % 0.006 0.589 % 06-Apr-95 AS LEFT 90.56 90.00 89.82 91.80 0.006000 0.60055 i 09-Apr-96 AS FOUND 90.42 90.00 89.82 91.80 731 -0.011 % -0.011 % -0.011 % 0.008111 0.811 % 09-Apr-96 AS LEFT 90.42 90.00 89.82 91.80 1-274/A02 13-Apr-87 AS FOUND 90.00 90.00 89.82 91.80 13-Apr-87 AS LEFT 90.00 90.00 89.82 91.80 21-Apr-88 AS FOUND 90.00 90.00 89.82 91.80 21-Apr-88 AS LEFT 90.00 90.00 89.82 91.80 25-Apr-89 AS FOUND 90.02 90.00 89.82 91.80 743 0.022 % 0.022 % 0.022 % 25-Apr-89 AS LEFT 90.02 90.00 89.82 91.80 24-Apr-90 AS FOUND 89.35 90.00 89.82 91.80 733 Out of Tolerance -0.722 % -0.722 % -0.722 % 24-Apr-90 AS LEFT 90.06 90.00 89.82 91.80 Adjustment Made 03-May-91 AS FOUND 89.93 90.00 89.82 91.80 738 Removed Removed Removed 03-May-91 AS LEFT 89.93 90.00 89.82 91.80 12-May-92 AS FOUND 90.01 90.00 89.82 91.80 749 -0.056 % -0.056 % -0.056 % 12-May-92 AS LEFT 90.01 90.00 89.82 91.80 28-Apr-93 AS FOUND 89.99 90.00 89.82 91.80 726 0.067 % 0.067 % 0.067 % 28-Apr-93 AS LEFT 89.99 90.00 89.82 91.80 12-Apr-94 AS FOUND 90.38 90.00 89.82 91.80 700 0.411 % 0.411 % 0.411 % 12-Apr-94 AS LEFT 90.38 90.00 89.82 91.80 06-Apr-95 ASFOUND 90.42 90.00 89.82 91.80 708 0.478 % 0.478 % 0.478 % 06-Apr-95 AF LEFT 90.42 90.00 89.82 91.80, 09-Apr-96 AS FOU,ND 90.30 90.00 89.82 91.80 l 728l -0.089 % -0.089 % -0.089% Ic33.xts Page 2 of 12 Checked KLD 11/23/Sa .2.

PBNP-lC-33 UV-PU: By GWS Att:chment A Voltaga Setting Drift Data 11/23/98 09-Apr-9G AS LEFT 90.30 90.00 89.82 91.80 l 2-273/A01 08-Oct-87 AS FOUND 90.04 90.00 89.82 91.80 08-Oct-87 AS LEFT 90.04 90.00 89.82 91.80 17-Oct-88 AS FOUND 90.30 90.00 89.82 91.80 17-Oct-88 AS LEFT 90.30 90.00 89.82 91.80 20-Oct-89 AS FOUND 89.95 90.00 89.82 91.80 743 _ -0.100 % -0.100 % -0.100 % 20-Oct-89 AS LEFT 89.95 90.00 89.82 91.80 27-Oct-90 AS FOUND 90.70 90.00 89.82 91.80 740 0.444 % 0.444 % 0.444 % 27-Oct-90 AS LEFT 90.70 90.00 89.82 91.80 09-Oct-91 AS FOUND 90.20 90.00 89 82 91.80 719 0.278 % 0.278 % 0.278 % 09-Oct-91 AS LEFT 90.20 90.00 89.82 91.80 24-Oct-92 AS FOUND 90.00 90.00 89.82 91.80 728 -0.778 % -0.778 % -0.778 % 24-Oct-92 AS LEFT 90.00 90.00 89.8'2 91.80 15-Oct-93 AS FOUND 89.93 90.00 89.82 91.80 737 -0.300 % -0.300 % -0.300 % 15-Oct-93 AS LEFT 89.93 90.00 89.82 91.80 I 15-Oct-94 AS FOUND 89.99 90.00 89.82 91.80 721 -0.011 % -0.011 % -0.011 % 15-Oct-94 AS LEFT 89'9 90.00 89.82 91.80 3'J-Oct-95 AS FOUND 90.20 90.00 89.82 91.80 745 0.300 % 0.300 % 0.300 % 30-Oct-95 AS LEFT 90.20 90.00 89.82 91.80 19-Nov-96 AS FOUND 90.38 90.00 89.82 91.80 766 0.433 % 0.433 % 0.433 % 19-Nov-96 AS LEFT 90.38 90.00 89.82 91.80 2-273/A02 08-Oct-87 AS FOUND 90.04 90.00 89.82 91.80 08-Oct-87 AS LEFT 90.04 90.00 89.82 91.80 17-Oct-88 AS FOUND 90.20 90.00 89.82 91.80 17-Oct-88 AS LEFT 90.20 90.00 89.82 91.80 20-Oct-89 AS FOUND 90.03 90.00 89.82 91.80 743 -0.011 % -0.011 % -0.011 % 20-Oct-89 AS LEFT 90.03 90.00 89.82 91.80 27-Oct-90 AS FOUND 90.55 90.00 89.82 91.80 740 0.389 % 0.389 % 0.389 % 27-Oct-90 AS LEFT 90.55 90.00 89.82 91.80 09-Oct-91 AS FOUND 90.20 90.00 89.82 91.80 7% 0.189 % 0.189 % 0.189% 09-Oct-91 AS LEFT 90.20 90.00 89.82 91.80 24-Oct-92 AS FOUND 90.01 90.00 89.82 %.80 728 -0.600 % -0.600 % -0.600 % 24-Oct-92 AS LEFT 90.01 90.00 89.8? 91.80 15-Oct-93 AS FOUND 89.97 90.00 59.82 91.80 737 -0.256 % -0.256 % -0.256 % 15-Oct-93 AS LEFT 89.97 90 00 89.82 91.80 15-Oct-94 AS FOUND 89.91 90.00 89.82 91.80 721 -0.111 % -0.111 % -0.111 % 15-Oct-94 AS LEFT 89.S i 90.00 89.82 91.80 30-Oct-95 AS FOUND 90.10 90.00 89.82 91.80 745 0.144 % 0.144 % 0.144 % 30-Oct-95 AS LEFl 90.10 90.00 89.82 91.80 19-Nov-96 ASFOUND 90.34 90.00 89.82 91.80 766 0.478 % 0.478 % 0.478 % 19-Nov-CG AS LEFT 90.34 90.00 89.82 91.80 2-274/A01 OS-Oct-87 AS FOUND 89.9/ 90.00 89.82 91.80 08-Oct-87 AS LEFT 89.97 90.00 89.82 91.80 , e ic33.xis Page 3 of 12 Checked KLD 11/23/98

PBNP-lC-33 UV-PU: By GWS Attachment A Voltage Setting Drift Da a 11/23/98 17-Oct-88 AS FOUND 90.20 90.00 89.82 91.80 17-Oct-88 AS LEFT 90.20 90.00 89.82 91.80 20-Od-89 AS FOUND 90.05 90.00 89.82 91.80 743 0.089 % 0.089 % 0.089 % 20-Oct-89 AS LEFT 90.05 90'.00 89 82 91.80 27-Oct-90 AS FOUND 90.62 90.00 89.82 91.80 740 0.467 % 0.467 % 0.467 % 27-Oct-90 AS LEFT 90.62 90.00 89.82 91.80 09-Oct-91 AS FOUNO 90.20 90.00 89.82 91.80 719 0.167 % 0.167 % 0.167 % 09-Oct-91 AS LEFT 90.20 90.00 89.82 91.80 24-Oct-92 AS FOUND 90.17 90.00 89.82 91.80 728 -0.500 % -0.500 % -0.500 % 24-Oct-92 AS LEFT 90.17 90.00 89.82 91.80 15-Oct-93 AS FOUND 90.10 90.00 89.82 91.80 737 -0.111 % -0.111 % -0.111 % 15-Oct-93 AS LEFT 90.10 90.00 89.82 91.80 15-Oct-94 AS FOUND 90.03 90.00 89.82 91.80 721 -0.156 % -0.156 % -0.156 % 15-Oct-94 AS LEFT 90.03 90.00 89.82 91.80 30-Oct-95 AS FOUND 90.40 90.00 89.82 91.80 745 0.333 % 0.333 % 0.333 % 30-Oct-95 AS LEFT 90.40 90.00 89.82 91.80 19-Nov-96 AS FOUND 90.57 90.00 89.82 91.80 766 O.600 % 0.600% 0 600 % 19-Nov-96 AS LEFT 90.57 90.00 89.82 91.80 2-274/A02 08-Oct-87 AS FOUND 90.04 90.00 89.82 91.80 08-Oct-87 AS LEFT 90.04 90.00 89.82 91.80 17-Oct-88 AS FOUND 90.20 90.00 89.82 91.80 17-Oct-88 AS LEFT 90.20 90.00 89.82 91.80 20-Oct-89 AS FOUND 89.98 90.00 89.82 91.80 743 -0.067 % -0.067 % -0.067 % 20-Oct-89 AS LEFT 89.98 90.00 89.82 91.80 27-Oct-90 AS FOUND 90.47 90.00 89.82 91.80 740 0.300 % 0.300 % 0.300 % 27-Oct-90 AS LEFT 90.47 90.00 89.82 91.80 09-Oct-91 AS FOUND 90.20 90.00 89.82 91.80 719 0.244 % 0.244 % 0.244 % 09-Oct-91 AS LEFT 90.20 90.00 89.82 91.80 24-Oct-92 AS FOUND 90.04 90.00 89.82 91.80 728 -0.478 % -0.478 % -0.478 % 24-Oct-92 AS LEFT 90.04 90.00 89.82 91.80 15-Oct-93 AS FOUND 90.00 90.00 89.82 91.80 737 -0.222 % -0 222 % -0.222 % 15-Oct-93 AS LEFT 90.00 90.00 89.82 91.80 15-Oct-94 AS FOUND 90.05 90.00 89.82 91.80 721 0.011 % 0.011 % 0.011 % 15-Oct-94 AS LEFT 90.05 90.00 89.82 91.80 30-Oct-95 AS FOUND 90.20 90.00 89.82 91.80 745 0.222 % 0.222 % 0.222 % 30-Oct-95 AS LEFT 90.20 90.00 89.82 91.80 19-Nov-96 AS FOUND 90.38 90.00 89.82 91.80 766 0.367 % 0.367 % 0.367 % 19-Nov-96 AS LEFT 90.38 90.00 89.82 91.80 Average 0.102 % 0.102 % 0.102 % Std Dev 0.339 % 0.339 % 0.339 % Count 59 59 59 95 %/95 % 2.348 2.348 2.348 tc33.xis Page 4 of 12 Checked KLD 11/23/98

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P8NP-IC-33 UV-PU: By GWS Attachmtnt A Voltage Setting Dri't Data 11/23/98 t Descriptive Statisdcs - Column 1 Normalcy Testing Mean 0.001014 l Results Test Value Standard Error 0.000442 g1 Significance of Skewness: Insignificant 0.469712 {Med:an_ 0.00089 ] l Mode -0.00011 Significance of Kurtosis: Standard Deviation 0.003393 b2 Significance Test (N>49): Insignificant 2.990885 Sample Variance 1.15E-05 g2 Significance Test (N>49) : Insignificant 0.099085 I Kurtosis 0.099085 Skewness -0.46971 Range 0.01589 Minimum -0.00778 Maximum 000811 S_um 0.05985 count 59 Confidence Level (95.0 0 000884 95/e5 multiplier 2.35 95%/95% Onft Valuei 0.797 % Rounded Histooram CDF Bin Bin ' Bin Frequency Cum (Ni-0.33)/ Probability Plot Data -0.780 % -0.780 % -0.780 % 0 Total, Ni (Nt+0.33) E Value SHIFT E Value Norm E -0.760 % -0.760 % -0.760 % 1 0 -0.780 % -0.740 % -0.740 % -0.740 % 0 1 0.01129 -2.28038 -0.760 % -2.28038 -2.53873 { -0.720 % -0.720 % -0.720 % 1 1 0.01129 -2.28038 -0.740 % -2.28038 -2.47979 -0.700 % -0.700 % -0.700 % 0 2 0.02815 -1.90874 -0.720 % -1.90874 -2.42085 -0 680% -0.680 % -0.630 % 0 2 0.02815 -1.90874 -0.700 % -1.90874 -2.36191 l -0.660 % 4.660 % -0.660 % 0 2 0.02815 -1.90874 -0.680 % -1.90874 -2.30297 f -0.640 % -0.640 % -0 640% 0 2 0.02815 -1.90874 -0.660 % -1.90874 -2.24403 -0.620 % -0.620 % -0.620 % 0 2 0.02815 -1.90874 -0.640 % -1.90874 -2.18508 i i -0.600 % -0.600@o -0.600 % 1 2 0.02815 -1.90874 -0.620 % -1.90874 -2.12614 ( -0.58G% -0 580 % -0.580 % 0 3 0.04500 -1.69537 -0.600 % -1.69537 -2.06720 [ -0.560 % -0.560 % -0.560 % 0 3 0.04500 -1.69537 -0.580 % -1.69537 -2.00826 ? I -0.540 % -0.540 % -0.540 % 0 3 0.04500 -1.69537 -0.560 % -1.69537 -1.94932 -0.520 % -0.520 % -0.520 % 0 3 0.04500 -1.69537 -0.540 % -1.69537 -1.89038 f -0.500 % -O 500 % -0.500 % 1 3 0.04500 -1.69537 -0.520 % -1.69537 -1.83143 l ? f f Ic33.xts Page 6 of 12 Checked KLD 11/23/98

PBNP-IC-33 UV-PU: EyGWS Attachment A Voltage Setting Drift Data 11/23/98 -0.480 % -0.480 % -0.480 % 0 4 0.06186 -1.53937 -0.500 % -1.53937 -1.77249 -0.460% -0.460 % -0.460% 1 4 0.06186 -1.53937 -0.480 % -1.53937 -1.71355 -0.440 % -0.440 % -0.440 % 0 5 0.07871 -1.41379 -0.460 % -1.41379 -1.65461 -0.420 % -0.420 % -0.420 % 0 5 0.07871 -1.41379 -0.440% -1.41379 -1.59567 -0.400 % -0.400 % -0.400 % 0 5 0.07871 -1.41379 -0.420 % -1.41379 -1.53673 -0.380 % -0.380 % 0.380 % 0 5 0.07871 -1.41379 -0.400 % -1.41379 -1.47779 -0.360 % -0.360 % -0.360 % 0 5 0.07871 -1.41379 -0.380 % -1.41379 -1.41884 -0.340 % -0.340 % -0.340 % 0 5 0.07871 -1.41379 -0.360 % -1.41379 -1.35990 -0.320 % -0.320 % -0.320 % 0 5 0.07871 -1.41379 -0.340 % -1.41379 -1.30096 -0.300 % -0.300 % -0.300 % 1 5 0.07871 -1.41379 -0.320 % -1.41379 -1.24202 -0.280% -0.280 % -0.280 % 0 6 0.09557 -1.30723 -0.300 % -1.30723 -1.18308 -0.260 % -0.260 % -0.260 % 0 6 0.09557 -1.30723 -0.280 % -1.30723 -1.12414 -0.240 % -0.240 % -0.240 % 2 6 0.09557 -1.30723 -0.260 % -1.30723 -1.06519 -0.220 % -0.220 % -0.220 % 1 8 0.12928 -1.12982 -0.240 % -1.12982 -1.00625 -0.200 % -0.200 % -0.200 % 0 9 0.14613 -1.05317 -0.220 % -1.05317 -0.94731 -0.180 % -0.180 % -0.180% 1 9 0.14613 -1.05317 -0.200% -1.05317 -0.88837 -0.160 % -0.160 % -0.160 % 1 10 0.16299 -0.98226 -0.180 % -0.98226 -0.82943 -0.140 % -0.140 % -0.140 % 1 11 0.17984 -0.91597 -0.160 % -0.91597 -0.77049 -0.120 % -0.120 % -0.120 % 0 12 0.19670 -0.85348 -0.140 % -0.85348 -0.71154 -0.100 % -0.100 % -0.100 % 3 12 0.19670 -0.85348 -0.120 % -0.85348 -0.65260 -0.080 % -0.080 % -0.080 % 2 15 0.24726 -0.68313 -0.100 % -0.68313 -0.59366 -0.060 % -0.060 % -0.060 % 1 17 0.28097 -0.57996 -0.080 % -0.57996 -0.53472 -0.040 % -0.040 % -0.040 % 1 18 0.29783 -0.53066 -0.060 % -0.53066 -0.47578 -0.020 % -0.020 % -0.020 % 0 19 0.31468 -0.48263 -0.040 % -0.48263 -0.41684 0.000 % 0.000 % 0.000 % 4 19 0.31468 -0.48263 -0.020 % -0.48263 -0.35790 0.020 % 0.020 % 0.020 % 1 23 0.38210 -0.29997 0.000 % -0.29997 -0.29895 0.040 % 0.040 % 0.040 % 1 24 0.39895 -0.25605 0.020 % -0.25605 -0.24001 0.060 % 0.060 % 0.060 % 2 25 0.41581 -0.21263 0.040 % -0.21263 -0.18107 0.080 % 0.080 % 0.080 % 1 27 0.44952 -0.12687 0.060 % -0.12687 -0.12213 0.100 % 0.100 % 0.100 % 3 28 0.46637 -0.08439 0.080 % -0.08439 -0.06319 0.120 % 0.120 % 0.120 % 1 31 0.51694 0.04247 0.100 % 0.04247 -0.00425 0.140 % 0.140 % 0.140 % 0 32 0.53379 0.08481 0.120 % 0.08481 0.05470 0.160 % 0.160 % 0.160 % 1 32 0.53379 0.08481 0.140 % 0.08481 0.11364 0.180 % 0.180 % 0.180 % 1 33 0.55065 0.12730 0.160 % 0.12730 0.17258 0.200 % 0.200 % 0.200 % 1 34 0.56750 0.17002 0.180 % 0.17002 0.23152 0.220 % 0.220 % 0.220 % 0 35 0.58436 0.21306 0.200 % 0.21306 0.29046 0.240 % 0.240 % 0.240 % 2 35 0.58436 0.21306 0.220 % 0.21306 0.34940 0.260 % 0.260 % 0.260 % 1 37 0.61807 0.30041 0.240 % 0.30041 0.40835 0.280 % 0.280 % 0.280 % 1 38 0.63492 0.34492 0.260 % 0.34492 0.46729 0.300 % 0.300 % 0.300 % 2 39 0.65178 0.39013 0.280 % 0.39013 0.52623 0.320 % 0.320 % 0.320 % 0 41 0.68549 0.48310 0.300 % 0.48310 0.58517 0.340 % 0.340 % 0.340 % 2 41 0.68549 0.48310 0.320 % 0.48310 0.64411 0.360 % 0.360 % 0.360 % 0 43 0.71920 0.58046 0.340 % 0.58046 0.70305 Ic33.xis Page 7 of 12 Checked KLD 11/23/98

t PBNP-lC-33 UV-PU: By GWS Attachment A Voltage Setting Drift Data 11/23/98 0.380 % 0.380 % 0.380 % 1 43 0.71920 0.58046 0.360 % 058046 0.76199 0.400 % 0.400 % 0.400 % 1 44 0.73605 0.63122 0.380 % 0.63122 0.82094 0.420 % 0.420 % 0.420 % 1 45 0.75291 0.68367 0.400 % 0.68367 0.87988 0.440 % 0.440 % 0.440% 2 46 0.76976 0.73806 0.420 % 0.73806 0.93882 .i 0.460 % 0.460% 0.460 % 1 48 0.80347 0.85409 0.440% 0.85409 0.99776 l 0.480 % 0.480 % 0.480 % 4 49 0.82003 0.91661 0.460% 0.91661 1.05670 i 0.500 % 0.500 % 0.500 % 1 53 0.88775 1.21463 0.480% 1.21463 1.11564 ~ [ 0.520% 0.520 % 0.520 % 0 54 0.90460 1.30823 0.500 % 1.30823 1.17459 i 0.540 % 0.540 % 0.540 % 0 54 0.90460 1.30823 0.520 % 1.30823 1.23353 0.560 % 0.560 % 0.560 % 2 54 0.90460 1.30823 0.540 % 1.30823 1.29247 0.580 % 0.580 % 0.580 % 0 56 0.93831 1.54075 0.560 % 1.54075 1.35141 { 0.600 % 0.600 % 0.600 % 2 56 0.93831 1.54075 0.580 % 1.54075 1.41035 l 0.620 % 0.620 % 0.620 % 0 58 0.97202 1.91136 0.600 % 1.91136 1.46929 0.640 % 0.640 % 0.640 % 0 58 0.97202 1.91136 0.620 % 1.91136 1.52824 0.660 % 0.660 % 0.660 % 0 58 0.97202 1.91136 0.640 % -1.91136 1.58718 i 0.680 % 0.680 % 0.680 % 0 58 0.97202 1.91136 0.660 % 1.91136 1.64612 0.700 % 0.700 % 0.700 % 0 58 0.97202 1.91136 0.680 % 1.91136 1.70506 0.720 % 0.720 % 0.720 % 0 58 0.97202 1.91136 0.700 % 1.91136 1.76400 0.740 % 0.740 % 0.740 % 0 58 0.97202 1.91136 0.720 % 1.91136 1.82294 0.760 % 0.760 % 0.760 % 0 58 0.97202 1.91136 0.740 % 1.91136 1.88188 0.780 % 0.780 % 0.780 % 0 58 0.97202 1.91136 0.760 % 1.91136 1 94083 4 0.800 % 0.800 % 0.800 % 0 58 0.97202 1.91136 0.780 % 1.91136 1.99977 [ 0.820 % 0.820 % 0.820 % 1 58 0.97202 1.91136 0.800 % 1.91136 2.05871 More 0 59 0.98888 2.28611 0.820 % 2.28611 2.11765 [ [ t e I I i i I r l Ic33.xis Page 8 of 12 Checked KLD 11/23/98 w

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PBNP-!O-33 UV-PU: By GWS . A*iachment A ' Voltage Setting Drift Data 11/23/98 4 1 I I l I I ~ i Normal Approximation of a Binomial-Under Voltage Drop-Out Setting Drift D M2 M4 m=mean Data Pts Test 1 Test 2 I (x-m(x(n)))a2 (x-m(x(nm4 x l 7.73E-05 5.98E-09 -0.778 % 0 0 - Tota! 59 [ 6.78E-05 4.6E-09 -0.722 % 0 1 Std Dev 0.339 % 4.92E-05 2.42E-09 -0.600 % 1 1 Mean 0.101 % 3.62E-05 1.31E-09 -0.500 % 1 1 95/95 Mutt 2.3476 4 3.36E-05 1.13E-09 -0.478 % 1 1 Criteria 0.797% l 1.61E-05 2.6E-10 -0.300 % 1 1 X 57 6 1.28E-05 1.63E-10 -0.256 % 1 1 X' 96.61 % 1.28E-05 1.63E-10 -0.256 % 1 1 P lower 91.99% i 1.05E-05 LO9E-10 -0.222 % 1 1 8.44E-06 7.12E-11 -0.189 % 1 1 7.81E-06 6.1E-11 -0.178 % 1 1 New Criteria 0.824 % ~ 6.63E-06 4.39E-11 -0.156 % 1 1 New X 58 4 "i1E-06 2.04E-11 -0.111 % 1 1 New X* 98.31 % ' t 4.51E 06 2.04E-11 -0.111 % 1 1 New P lower 9Mi% 4.06E-06 1.65E-11 -0.100 % 1 1 t 3.63E-06 1.32E-11 -0.089 % 1 1 i 3.63E-06 1.32E-11 -0.089 % 1 1 2.84E-06 8.05E-12 -0.067 % 1 1 I 2.48E-06 6.14E-12 -0.056 % 1 1 i 1.26E-06 1.6E-12 -0.011 % 1 1 -[ 1.26E-06 1.6E-12 -0.011 % 1' i 'I i 1 i i 1.26E-06 1.6E-12 -0.011 % ~ 1 1 1.03E-06 1.06E-12 0.000 %. f 8.18E-07 6 69E-13 0.011 % 1 1 i 6.31E-07 3.98E-13 0.I)22 % 1 1 [ 3.3E-07 1.09E-13 0.044 % 1 1 ? 2.06E-07 4.26E-14 0.056 % 1 1 1.19E-07 1.41E~14 0.067 % 1 1 [ i 1.55E-08 ~ 2.45-16 0.089 % 1 1 f 1.55E-Od 2.4E-16 0.089 % 1 1 [ _155E-08 2.4E-16 0.089 % 1 1 l 9.14E-09 8.35E-17 0.111 % 1 1 f 1.81E '07 3.28E-14 0.144 % 1 1 4.3E-07 1.85E-13 0.167 % 1 1 7.67E-07 5.88E-13 0.189 % 1 1 l 1.45E-06 2.11E-12 0.222 % 1 1 { Ic33.xis Page 11 of 12 Checked KLD 11/23/98 i

PBNP-lC-33 UV-PU: By GWS ' Attactiment A Voltage Setting Drift Data 11/23/93 1.73E-06 3E-12 0.233 % 1 1 2.03E-06 4.13E-12 0.244 % 1 1 3.12E-06 9.72E-12 0.278 % 1 1 _3 e4E-06 1.55E-11 0.300 % 1 1 3.04E-06 1.55E-11 0.300 % 1 1 5 36E-06 2.88E-11 0.333 % 1 1 5.36E-06 2.88E-11 0.333 % 1 1 7.05E-06 4.97E-11 0.367 % 1 1 8.27E-06 6.84E-11 0.389 % 1 1 9.58E-06 9.18E-11 0.411 % 1 1 1.1E-05 1.21E-10 0.433 % 1 1 1.1E-05 1.21E-10 0.433 % 1 1 1.17E-05 1.38E-10 0.444 % 1 1 1.34E-05 1.79E-10 0.467 % 1 1 1.34E-05 1.79E-10 0.467 % 1 1 1.42E-05 2.01E-10 0.478 % 1 1 1.42E-05 2.01 E-10 0.478 % 1 1 1.59E-05 2.52E-10 0.500 % 1 1 1.96E-05 3.84E-10 0.544 % 1 1 1.96E-05 3 E4E-10 0.544 % 1 1 2.38E-05 5.65E-10 0.589 % 1 1 2.49E-05 6.18E-10 0.600 % 1 1 5.03E-05 2.53E-09 0.811 % 1 1 tc33.xis Page 12 of 12 Checked KLD 11/23/98

PBNP-IC-34 UV-TD By GWS Attachment B Time Delay Drift Data 11/23/98 First Second Rounded! Time Time - Time Time interval Outlier Outlier Sorted Sorted Relay Tag Calibration Delay Delay Set Delay Low Delay Length Raw Drift Drift Drift Drift Point Drift Point Number Date AS-Status Poht Point Limit High Limit (Days) Comments Points Points Points Data Data 1-273/A01 13-Apr-87 AS FOUND 0.510 0.500 0.480 0.520 13-Apr-87 AS LEFT 0.510 0.500 0.480 0.520 21-Apr-88 AS FOUND 0.510 0.500 0.480 0.520 -0.032 -3.200 % 21-Apr-88 AS LEFT 0.510 0.500 0.480 0.520 -0.028 -2.800 % 25-Apr-89 AS FOUND 0.496 0.500 0.480 0.520 743 -2.800 % -2.800 % -2.800 % -0.028 -2.800 % 25-Apr-89 AS LEFT 0.496 0.500 0.480 0.520 -0.028 -2.800 % 24-Apr-90 AS FOUND 0.530 0.500 0.480 0.520 733 Out of Tolerance 4.000 % 4.000 % 4.000 % -0.028 -2.800 % 24-Apr-90 AS LEFT 0.530 0.500 0.480 0.520 -0.024 -2.400 % 03-May-91 AS FOUND 0.515 0.500 0.480 0.520 738 3.800 % 3.800 % 3.800 % -0.018 -1.800 % 03-May-91 AS LEFT 0.515 0.500 0.480 0.520 -0.018 -1.800 % 12-May-92 AS FOUND 0.518 0.500 0.480 0.320 749 -2.400 % -2.400 % -2.400 % -0.014 -1.400 % 12-May-92 AS LEFT 0.500 0.500 0.480 0.520 Adjustment Made -0.01200 -1.200 % 28-Apr-93 AS FOUND 0.499 0.500 0.480 0.520 726 Removed Removed Removed -0.012 -1.200 % 28-Apr-93 AS LEFT 0.499 0.500 0.480 0.520 -0.01000 -1.000 % 09-Apr-94 AS FOUND 0.501 0.500 0.480 0.520 697 0.200 % 0.200 % 0200% -0.01000 -1.000 % 09-Apr-94 AS LEFT 0.501 0.500 0.480 0.520 -0.010 -1.000 % 06-Apr-95 AS FOUND 0.495 0.500 0.480 0.520 708 -0.800 % -0.800 % -0.800 % -0.01000 -1.000 % 06-Apr-95 AS LEFT 0.495 0.500 0.480 0.520 -0.01000 -1.000 % 09-Apr-96 AS FOUND 0.496 0.500 0.480 0.520 731 Out of Tolerance Removed Removed Removed -0.01 -1.000 % 09-Apr-96 AS LEFT 0.496 0.500 0.480 0.520 -0.00800 -0.800 % 12-Apr-96 AS FOUND 0.499 0.500 0.480 0.520 372 Relay Replaced Removed Removed Removed -0.008 -0.800 % 12-Apr-96 AS LEFT 0.499 0.500 0.480 0.520 -0.00800 -0.800 % 1-273/A02 13-Apr-87 AS FOUND 0.504 0.500 0.480 0.520 -0.008 -0.800 % 13-Apr-87 AS LEFT 0.504 0.500 0.480 0.520 -0.006 -0.600 % 21-Apr-88 AS FOUND 0.510 0.500 0.480 0.520 -0.006 -0.600 % 21-Apr-88 AS LEFT 0.510 0.500 0.480 0.520 -0.006 -0.600% 25-Apr-89 AS FOUND 0.499 0.500 0.480 0.520 743 -1.000 % -1.000 % -1.000 % -0.004 -0.400 % 25-Apr-89 AS LEFT 0.499 0.500 0.480 0.520 -0.004 -0.400% 24-Apr-90 AS FOUND 0.530 0.500 0.480 0.520 733 Out of Tolerance 4.000 % 4.000 % 4.000 % -0.004 -0.400 % 24-Apr-90 AS LEFT 0.530 0.500 0.480 0.520 -0.004 -0.400 % 03-May-91 AS FOUND 0.513 0.500 0.480 0.520 738 2.800 % 2.800 % 2.800 % -0.002 -0.200 % 03-May-91 AS LEFT 0.513 0.500 0.480 0.520 .-0.002 -0.200 % 12-May-92 AS FOUND 0.514 0.500 0.480 0.520 749 -3.200 % -3.200 % -3.200 % -0.00200 -0.200 % 12-May-92 AS LEFT 0.500 0.500 0.480 0.520 Adjustment Made -0.002 -0.200 % Checked KLD 11/23/98 Ic33.xis Page 1 of 11

PBNP-IC-34 UV-TD By GWS Attachment B Time Delay Drift Data 11/23/98 r 28-Apr-93 AS FOUND 0.501 0.500 0.480 0.520 726 Removed Removed Removed -0.002 -0200% 28-Apr-93 AS LEFT 0.501 0.500 0.480 0.520 0.00000 0.000 % i 12-Apr-94 AS FOUND 0.499 0.500 - 0.480 0.520 700 -0.200 % -0200% -0200% 0.000 0.000 % i 12-Apr-94 AS LEFT 0.499 0.500 0.480 0.520 0.00000 0.000 % 06-Apr-95 AS FOUND 0.497 0.500 0.480 0.520 708 -0.800 % -0.800 % -0.800 % 0 0.000 % 06-Apr-95 AS LEFT 0.497 0.500 0.480 0.520 0.002 0.200 % 09-Apr-96 AS FOUND 0.496 0.500 0.480 0.520 728 -0.600 % -0.600 % -0.600 % 0.002 0200% 09-Apr-96 AS LEFT 0.496 0.500 0.480 0.520 0.002 0200% 1-274/A01 13-Apr-87 AS FOUND 0.505 0.500 0.480 0.520 0.002 0200% 13-Apr-87 AS LEFT 0.505 0.500 0.480 0.520 0.002 0200% 21-Apr-88 AS FOUND 0.510 0.500 0.480 0.520 0.002 0200% 21-Apr-88 AS LEFT 0.510 0.500 0.480 0.520 0.004 0.400 % 25-Apr-89 AS FOUND 0.495 0.500 0.480 0.520 0.006 0.600 % 25-Apr-89 AS LEFT 0.495 0.500 0.480 0.520 0.010 1.000 % 24-Apr-90 AS FOUND 0.530 0.500 0.480 0.520 733 Out of Tolerance 4.000 % 4.000 % 4.000 % 0.010 1.000 % i 24-Apr-90 AS LEFT 0.530 0.500 0.480 0.520 0.014 1.400 % 03-May-91 AS FOUND 0.518 0.500 0.450 0.520 738 4.600 % 4.600 % 4.600 % 0.018 1.800 % 03-May-91 AS LEFT 0.518 0.500 0.480 0.520 0.028 2.800 % l 12-May-92 AS FOUND 0.516 0.500 0.480 0.520 749 -2.800 % -2.800 % -2.800 % 0.038 3.800 % 12-May-92 AS LEFT 0.500 0.500 0.480 0.520 Adjustment Made 0.040 4.000 % 28-Apr-93 AS FOUND 0.500 0.500 0.480 0.520 726 Removed Removed Removed 0.040 4.000 % [ 28-Apr-93 AS LEFT 0.500 0.500 0.480 0.520 0.04000 4.000 % I 09-Apr-94 AS FOUND 0.501 0.500 0.480 0.520 697 0.200 % 0200% 0.200 % 0.040 4.0003 09-Apr-94 AS LEFT 0.501 0.500 0.480 0.520 0.04600 4.600 % 06-Apr-95 AS FOUND 0.496 0.500 0.480 0.520 708 -0.800 % -0.800 % -0.800 % 0.060 6.000 % 06-Apr-95 AS LEFT 0.496 0.500 0.480 0.520 09-Apr-96 AS FOUND 0.496 0.500 0.480 0.520 731 -1.000 % -1.000 % -1.000 % f 09-Apr-96 AS LEFT 0.496 0.500 0.480 0.520 1-274/A02 13-Apr-87 AS FOUND 0.510 0.500 0.480 0.520 [ 13-Apr-87 AS LEFT 0.510 0.500 0.480 0.520 21-Apr-88 AS FOUND 0.500 0.500 0.480 0.520 21-Apr-88 AS LEFT 0.500 0.500 0.480 0.520 25-Apr-89 AS FOUND 0.496 0.500 0.480 0.520 743 -2.800 % -2.800 % -2.800 % I 25-Apr-89 AS LEFT 0.496 0.500 0.480 0.520 l 24-Apr-90 AS FOUND 0.530 0.500 0.480 0.520 733 Out of Tolerance 6.000 % 6.000 % 6.000 % 24-Apr-90 AS LEFT 0.530 0.500 0.480 0.520 03-May-91 AS FOUND 0.516 0.500 0.480 0.520 738 4.000 % 4.000 % 4.000 % 03-May-91 AS LEFT 0.516 0.500 0.480 0.520 i 12-May-92 AS FOUND 0.516 0.500 0.480 0.520 749 -2.800 % -2.800 % -2.800 % 12-May-92 AS LEFT 0.501 0.500 0.480 0.520 Adjustment Made Checked KLD 11/23/98 Ic33.xis Page 2 of 11

PBNP-IC-34 UV-TD By GWS. Attachment B Time Delay Drift Data 11/23/98 [ 28-Apr-93 AS FOUND 0.502 0.500 0.480 0.520 726 Removed Removed Removed 28-Apr-93 AS LEFT 0.502 0.500 0.480 0.520 12-Apr-94 AS FOUND 0.500 0.500 0.480 0.520 700 -0.200 % -0.200 % -0200% 12-Apr-94 AS LEFT 0.500 0.500 0.480 0.520 06-Apr-95 AS FOUND 0.497 0.500 0.480 0.520 708 -1.000 % -1.000 % -1.000 % 06-Apr-95 AS LEFT 0.497 0.500 0.480 0.520 09-Apr-96 AS FOUND 0.497 0.500 0.480 0.520 728 -0.600 % -0.600 % -0.600 % 09-Apr-96 AS LEFT 0.497 0.500 0.480 0.520 2-273/A01 08-Oct-87 AS FOUND 0.497 0.500 0.480 0.520 08-Oct-87 AS LEFT 0.497 0.500 0.480 0.520 17-Oct-88 AS FOUND 0.499 0.500 0.480 0.520 17-Oct-88 AS LEFT 0.499 0.500 0.480 0.520 20-Oct-89 AS FOUND 0.497 0.500 0.480 0.520 743 0.000 % 0.000 % 0.000 % 20-Oct-89 AS LEFT 0.497 0.500 0.480 0.520 27-Oct-90 AS FOUND 0.508 0.500 0.480 0.520 740 1.800 % 1.800 % 1.800 % 27-Oct-90 AS LEFT 0.508 0.500 0.480 0.520 09-Oct-91 AS FOUND 0.497 0.500 0.480 0.520 719 0.000 % 0.000 % 0.000 % 09-Oct-91 AS LEFT 0.497 0.500 0.480 0.520 [ 24-Oct-92 AS FOUND 0.503 0.500 0.480 0.520 728 -1.000 % -1.000 % -1.000 % 24-Oct-92 AS LEFT 0.503 0.500 0.480 0.520 15-Oct-93 AS FOUND 0.502 0.500 0.480 0.520 737 1.000 % 1.000 % 1.000 % 15-Oct-93 AS LEFT 0.502 0.500 0.480 0.520 15-Oct-94 AS FOUND 0.501 0.500 0.480 0.520 721 -0.400 % -0.400 % -0.400 % 15-Oct-94 AS LEFT 0.501 0.500 0.480 0.520 30-Oct-95 AS FOUND 0.496 0.500 0.480 0.520 745 -1.200 % -1.200 % -1200% 30-Oct-95 AS LEFT 0.496 0.500 0.480 0.520 19-Nov-96 AS FOUND 0.504 0.500 0.480 0.520 766 0.600 % 0.600 % 0.600 % 19-Nov-96 AS LEFT 0.504 0.500 0.480 0.520 2-273/A02 08-Oct-87 AS FOUND 0.500 0.500 0.480 0.520 08-Oct-87 AS LEFT 0.500 0.500 0.480 0.520 17-Oct-88 AS FOUND 0.507 0.500 0.480 0.520 17-Oct-88 AS LEFT 0.507 0.500 0.480 0.520 20-Oct-89 AS FOUND 0.501 0.500 0.480 0.520 743 0.200 % 0.200 % 0.200 % 20-Oct-89 AS LEFT 0.501 0.500 0.480 0.520 i 27-Oct-90 AS FOUND 0.502 0.500 0.480 0.520 740 -1.000 % -1.000 % -1.000 % 27-Oct-90 AS LEFT 0.502 0.500 0.480 0.520 09-Oct-91 AS FOUND 0.498 0.500 0.480 0.520 719 -0.600 % -0.600 % -0.600 % 09-Oct-91 AS LEFT 0.498 0.500 0.480 0.520 24-Oct-92 AS FOUND 0.503 0.500 0.480 0.520 728 0.200 % 0.200 % 0.200 % 24-Oct-92 AS LEFT 0.503 0.500 0.480 0.520 Checked KLD 11/23/98 ic33.xis Page 3 of 11

i.9 '-1C-34 UV-TD By GWS Attacnment G Time Delay Drift Data 11/23/98 15-Oct-93 AS FOUND 0.499 0.500 } 0.480 0.520 7371 0.200 % 0.200 % 0.200 % 15-Oct-93 AS LEFT 0.499 0.500 ' O.480 0.520 15-Oct-94 AS FOUND 0.502 0.500 0.480 0.520 721 -0.200 % -0.200 % -0.200 % g 15-Oct-94 AS LEFT 0.502 0.500 0.480 0.520 30-Oct-95 AS FOUND 0.494 0.500 0,480 0.520 745 -1.000 % -1.000 % -1.000 % 30-Oct-95 AS LEFT 0.494 0.500 0.480 0.520 19-Nov-96 AS FOUND 0.500 0.500 0.480 0.520 766 -0.400 % -0.400 % -0.400 % 19-Nov-96 AS LEFT 0.500 0.500 0.480 0.520 -~ 2 274/A01 08-Oct-87 AS FOUND 0.500 0.500 0.480 0.620 08-Oct-87 AS,LEFT 0.500 0.500 0.480 0.520 17-Oct-88 AOFOUND 0.502 0.500 0.480 0.520 17-Oct-88 AS LEFT 0.502 0.500 0.480 0.520 20-Oct-89 AS FOUND 0.501 0.500 0.480 0.520 743 O.200 % 0.200 % 0.200 % 20-Oct-89 AS LEFT 0.501 0.500 0.480 0.520 27-Oct-90 AS FOUND 0.507 0.500 0.480 0.520 740 1.000 % 1.000 % 1.000 % 27-Oct-90 AS LEFT 0.507 0.500 0.480 0.520 09-Oct-91 AS FOUND 0.492 0.500 0.480 0.520 719 -1.'800% -1.800 % -1.800 % 09-Oct-91 AS LEFT 0.432 0.500 0.480 0.520 24-Oct-92 AS FOUND 0.500 0.500 0.430 0.520 728 -1.400 % -1.400 % -1.400% 24-Oct-92 AS LEFT 0.500 0.500 0.480 0.520 15-Oct-93 AS FOUND 0.499 0.500 0.480 0.520 737 1.400 % 1 400 % 1.400 % 15-Oct-93 AS LEFT 0.499 0.500 0.480 0.520 15-Oct-94 AS FOUND 0.499 0.500 0.480 0.520 721 -0.200 % -0.200 % -0.200 % 15-Oct-94 AS LEFT 0499 0.500 0.480 0.520 30-Oct-95 AS FOUND 0.495 0.500 0.480 0.520 745 -0.800 % -0.800 % -0.800 % 30-Oct-95 AS LEFT 0.495 0.500 OA80 0.520 19-Nov-96 AS FOUND 0.497 0.500 0.480 0.520 766 -0.400 % -0.400 % -0.400 % 19-Nov-96 AS LEFT 0.497 0.500 0.480 0.520 2-274/A02 08-Oct-87 AS FOUND 0.500 0.500 0.480 0.520 08-Oct-87 AS LEFT 0.500 0.500 0.480 0.520 17-Oct-88 AS FOUND 0.501 0.500 0.480 0.520 17-Oct-88 AS LEFT 0.501 0.500 0.480 0.520 20-Oct-89 AS FOUND 0.500 _ 0.500 0.480 0.520 743 0.000 % 0.000 % 0.000*4 20-Oct-89 AS LEFT 0.500 0.500 0.480 0.520 27-Oct-90 AS FOUND 0.503 0.500 0.480 0.520 740 0.400 % 0.400 % 0.400 % 27-Oct-90 AS LEFT 0.503 0.500 0.480 0.520 09-Oct-91 AS FOUND 0.491 0.500 0.480 0.520 719 -1.800 % -1.800 % -1.800 % 09-Oct-91 AS LEFT 0.498 0.500 0.480 0.520 Adjustment Made 24-Oct-92 AS FOUND 0.498 d.500 0 480 0.520 728 Removed Removed Removed 24-Oct-92 AS LEF'T 0.498 0.500 0.480 0.520 Checked KLD 11/23/98 Ic33.xis Page 4 of 11 a-

PBNP-IC-34 UV-TD By GWS Attachment B Time Delay Drift Data 11/23/98 15-Oct-93 AS FOUND 0.497 0.500 0.480 0.520 737 -0.200 % -0.200 % -0.200 % 15-Oct-93 AS LEFT 0.497 0.500 0.480 0.520 15-Oct-94 AS FOUND 0.496 0.500 0.480 0.520 721 -0.400 % -0.400 % -0.400 % 15-Oct-94 AS LEFT 0.496 0.500 0.480 0.520 30-Oct-95 AS FOUND 0.491 0.500 0.480 0.520 745 -1.200 % -1.200 % -1 900% 30-Oct-95 AS LEFT 0.491 0.500 0.480 0.520 19-Nov-96 AS FOUND 0.496 0.500 0.480 0.520 766 0.000 % 0.000 % 0.000 % 19-Nov-96 AS LEFT 0.496 0.500 0.480 0.520 Average 0.049 % 0.049 % 0.049 % Std Dev 1.984 % 1.984 % 1.984 % Count 57 57 57 95 %/95 % 2.3548 2.3548 2.3548 95%/95 % Tol. Int. as % SP 4.721 % 4.721 % 4.721 % Bias Flag NO BIAS NO BIAS NO BIAS Outlier Criteria 3.0048 3.0048 3.0048 Percent Remaining Points 100 % 100 % Checked KLD 11/23/98 Ic33.xis Page 5 of 11

PBNP-IC-34 UV-TD By GWS Attachment B Time Delay Drift Data 11/23/98 J Descriptive Statistics Column 1 l Normalcy Testing Mean 0.000491 l Results Test Value Standard Error 0.002628 g1 Significance of Skewness: Significant 1.097998 Median -0.002 l l Mode -0.01 Significance of Kurtosis: Standard Deviation 0.01984 b2 Significance Test (N>49): Significant 3.96653 Sample Variance 0.000394 g2 Significance Test (N>49) : Significant 1.170131 Kurtosis 1.170131 Skewness 1.097998 Range 0.092 Minimum -0.032 Maximum 0.06 Sum 0.028 Count 57 Confidence Level (95.0% 0.005264 95/95 Multiplier 2.3548 95%/95% Dnft Value 4.721 % Rounded Histogram CDF Bin Bin Bin Frequency Cum (Ni-0.33{ Probability Plot Data -3200% -3.200 % -3.200 % 1 Total, Ni (Nt+0.33) E Value SHIFT E Value Norm E -3.000 % -3.000 % -3.000 % 0 1 -3.200 % -2.800 % -2.800 % -2.800 % 4 1 0.01169 -2.26728 -3.000 % -226728 -1.53688 -2.600 % -2.600 % -2.600 % 0 5 0.08146 -1.39533 -2.800 % -1.39533 -1.43608 -2.400 % -2.400 % -2.400 % 1 5 0.08146 -1.39533 -2.600 % -1.39533 -1.33527 -2.200 % -2.200 % -2.200 % 0 6 0.09890 -1.28784 -2.400 % -1.28784 -1.23446 -2.000 % -2.000 % -2.000 % 0 6 0.09890 -1.28784 -2.200 % -1.28784 -1.13365 -1.800 % -1.800 % -1.800 % 2 6 0.09890 -1 2 8784 -2.000 % -1.28784 -1.03284 -1.600 % -1.600 % -1.600 % 0 8 0.13379 -1.10867 -1.800 % -1.10867 -0.93203 -1.400 % -1.400 % -1.400 % 1 8 0.13379 -1.10867 -1.600 % -1.10867 -0.83123 l -1.200 % -1.200 % -1.200 % 2 9 0.15123 -1.03117 -1.400 % -1.03117 -0.73042 Checked KLD 11/23/98 Ic33.xts Page 6 of 11

PBNP-IC-34 UV-TD eyGws Attachment B Time Delay Drift Data 11/23/98 -1.000 % -1.000 % -1.000 % 6 11 0.18612 -0.89230 -1.200 % -0.89230 -0.62961 -0.800 % -0.800 % -0.800 % 4 17 0.29077 -0.55113 -1.000 % -0.55113 -0.52880 -0.600 % -0.600 % -0.600 % 3 21 0.36054 -0.35700 -0.800 % -0.35700 -0.42799 -0.400 % -0.400 % -0.400 % 4 24 0.41287 -0.22016 -0.600 % -0.22016 -0.32718 _-0.200% _-0200% -0.200 % 5 28 0.48264 -0.04352 -0.400 % -0.04352 -0.22638 0.000 % 0.000 % 0.000 % 4 33 0.56986 0.17601 -0.200 % 0.17601 ._-0.12557 0.200 % 0.200 % 0.200 % 6 37 0.63963 0.35747 0.000 % 0.35747 -0.02476 0.400 % 0.400 % 0.400 % 1 43 0.74429 0.65662 0.200 % 0.65662 0.07605 0.600 % 0.600 % 0.600 % 1 44 0.76173 0.71188 0.400 % 0.71188 0.17686 0.800 % 0.800 % 0.800 % 0 45 0.77917 0.76940 0.600 % 0.76940 0.27766 1.000 % 1.000 % 1.000 % 2 45 0.77917 0.76940 0.800 % 0.76940 0.37847 1.200 % 1.200 % 1.200 % 0 47 0.81406 0.89295 1.000 % 0.89295 0.47928 1.400 % 1.400 % 1.400 % 1 47 0.81406 0.89295 1.200 % 0.89295 0.58009 1.600 % 1.600 % 1.600 % 0 48 0.83150 0.96012 1.400 % 0.96012 0.68090 1.800 % 1.800 % 1.800 % 1 48 0.83150 0.96012 1.600 % 0.96012 0.78171 2.000 % 2.000 % 2.000 % 0 49 0.84894 1.03192 1.800 % 1.03192 0.88251 2.200 % 2.200 % 2.200 % 0 49 0.84894 1.03192 2.000 % 1.03192 0.98332 2.400 % 2.400 % 2.400 % 0 49 0.84894 1.03192 2.200 % 1.03192 1.08413 2.600 % 2.600 % 2.600 % 0 49 0.84894 1.03192 2.400 % 1.03192 1.18494 2.800 % 2.800 % 2.800 % 1 49 0.84894 1.03192 2.600 % 1.03192 1.28575 _ 3.000 % 3.000 % 3.000 % 0 50 0.86639 1.10948 2.800 % 1.10948 1.38656 3.200 % 3.200 % 3.200 % 0 50 0.86639 1.10948 3.000 % 1.10948 1.48736 3.400 % 3.400 % 3.400 % 0 50 0.86639 1.10946 3.200 % 1.10948 1.58817 3.600 % 3.600 % 3.600 % 0 50 0.86639 1.10948 3.400 % 1.10948 1.68898 3.800 % 3.800 % 3.800 % 1 50 0.86639 1.10948 3.600 % 1.10948 1.78979 4.000 % 4.000 % 4.000 % 4 51 0.88383 1.19436 3.800 % 1.19436 1.89060 4.200 % 4.200 % 4.200 % 0 55 0.95360 1.68083 4.000 % 1.68083 1.99141 4.400 % 4.400 % 4.400 % 0 55 0.95360 1.68083 4.200 % 1.68083 2.09221 i 4.600 % 4.600 % 4.600 % 1 55 0.95360 1.68083 4.400 % 1.68083 2.19302 4.800 % 4.800 % 4.800 % 0 56 0.97104 1.89638 4.600 % 1.89638 2.29383 5.000 % 5.000 % 5.000 % 0 56 0.97104 1.89638 4.800 % 1.89638 2.39464 5.200 % 5.200 % 5.200 % 0 56 0.97104 1.89638 5.000 % 1.89638 2.49545 5.400 % 5.400 % 5.403 % 0 56 0.97104 1.89638 5.200 % 1.89638 2.59625 5.600 % 5.600 % 5.600 % 0 56 0.97104 1.89638 5.400 % 1.89638 2.69706 5.800 % 5.800 % 5.800 % 0 56 0.97104 1.89638 5.600 % 1.89638 2.79787 6.000 % 6.000 % 6.000 % 1 56 0.97104 1.89638 5.800 % 1.89638 2.89868 More 0 57 0.98849 2.27303 6.000 % 2.27303 2.99949 Ic33.xts Page 7 of 11

PBNP-IC-34 UV-TD By GWS Attachment B Time Delay Drift Data 11/23/98 Histogram 7 'N g g;;';j, ' ,) .N u";.,, y- 'g ' 'i ' ' g' >L,, ',N, g <; ~yn c',, gj g .j. Ig ~ 6 -' " z 'sf r ' ;.s;,: scN "-'; " ~t. - s ',, O;' 7 y'

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PBNP-IC-34 UV-TD By GWS Attachment B Time Delay Drift Data 11/23/98 l l l l l l Normal Approximation of a Binomial-Undervoltage Time Delay Setting Drift Da M2 M4 m=mean Data Pts i Test 1 Test 2 (x-m(x(n)))^2 (x-m(x(n))^4 x 0.001056 1.11 E-06 -3.200 % 1 1 Total 57 0.000812 6.59E-07 -2.800 % 1 1 Std Dev 1.984 % 0.000812 6.59E-07 -2.800 % 1 1 Mean 0.049 % 0.000812 6.59E-07 -2.800 % 1 1 95/95 Mutt 2.3548 0.000812 6.59G-07 -2.800 % 1 1 Criteria 4.721 % 0.0006 3.6E-07 -2.400 % 1 1 X 56 0.000342 1.17E-07 -1.800 % 1 1 X' 98.25 % 0.000342 1.17E-07 -1.800 % 1 1 P lower 94.84 % 0.00021 4.41 E-08 -1.400 % 1 1 0.000156 2.43E-08 -1.200 % 1 1 0.000156 2.43E-08 -1.200 % 1 1 New Criteria 5.951 % 0.00011 1.21 E-08 -1.000 % 1 1 New X 57 0.00011 1.21 E-08 -1.000 % 1 1 New X' 100.00 % 0.00011 1.21 E-08 -1.000 % 1 1 New P lower 100.00 % 0.00011 1.21 E-08 -1.000 % 1 1 0.00011 1.21 E-08 -1.000 % 1 1 0.00011 1.21 E-08 -1.000 % 1 1 7.21 E-05 5.2E-09 -0.800 % 1 1 7.21 E-05 5.2E-09 -0.800 % 1 1 7.21 E-05 5.2E-09 -0.800 % 1 1 7.21 E-05 5.2E-09 -0.800 % 1 1 4.21 E-05 1.78E-09 -0.600 % 1 1 4.21 E-05 1.78E-09 -0.600 % 1 1 4.21 E-05 1.78E-09 -0.600 % 1 1 2.02E-05 4.07E-10 -0.400 % 1 1 2.02E-05 4.07E-10 -0.400 % 1 1 2.02E-05 4.07E-10 -0.400 % 1 1 2.02E-05 4.07E-10 -0.400 % 1 1 6.21 E-06 3.85E-11 -0.200 % 1 1 6.21 E-06 3.85E-11 -0.200 % 1 1 6.21 E-06 3.85E-11 -0.200 % 1 1 6.21 E-06 3.85E-11 -0.200 % 1 1 Ic33.xis Page 10 of 11

s PBNP-IC-34 UV-TD By GWS Attachment B Time Delay Drift Data 11/23/98 6.21 E-06 3.85E-11 -0.200%) i 1 j 2.41 E-07 5.82E-14 0.000 % 1 1 2.41 E-07 5.82E-14 0.000 % 1 1 2.41 E-07 5.82E-14 0.000 % 1 1 2.41 E-07 5.82E-14 0.000 % 1 1 2.28E-06 5.18E-12 0.200 % 1 1 2.28E-06 5.18E-12 0.200 % 1 1 2_.28E-06 5.18E-12 0.200 % 1 1 2.28E-06 5.18E-12 0.200 % 1 1 2.28E-06 5.18E 12 0.200 % 1 1 2.28E-06 5.18E-12 0.200 % 1 1 1.23E-05 1.52E-10 0.400 % 1 1 3.03E-05 9.21 E-10 0.600 % 1 1 9.04E-05 8.18E-09 1.000 % 1 1 9.04 E-05 8.18E-09 1.000 % 1 1 0.000182 3.33E-08 1.400 % 1 1 0.000307 9.4 E-08 1.800 % 1 1 0.000757 5.73E-07 2.800 % 1 1 0.001407 1.98E-06 3.800 % 1 1 0.001561 2.44E-06 4.000 % 1 1 0.001561 2.44E-06 4.000 % 1 1 0.001561 2.44E-06 4.000 % 1 1 0.001561 2.44 E-06 4.000 % 1 1 0.002071 4.29E-06 4.600 % 1 1 6.."S3541 1.25E-05 6.000 % 0 1 Checked KLD 11/23/98 Ic33.xis Page 11 of 11

j f 6103% 1655 ABB POlJER ALLENTOLN F-682 T-850 P-OO1 mY 2 ' 97 10: 5-M IB 18.4.7-2 Issue E l INSTRUCTIONS I l Single-Phase Voltage Relays I, l l UNDERVOL1 AGE RELAYS and OVERVOLTAGE RELAYS l 4 l TYPE 27, TYPE 270, TYPE 27H Catalog Series 211 Standard Case t l TYPE 27, TYPE 270, TYPE 27H Catalog Series 411 Test Case u TYPE 590, TYPE 59H Catalog Series 211 Standard Case TYPE 'GO, TYPE 59H Catalog Series 411 Test Case i .I l .n m,-- aee 4.::::* " Post-it Fax Note 7671 03e 4 f97 lg,$> 74 f; Atlasharf $ ame l eq / S ~ AA'gr N Se, 5 w au'e S AGA s Calp EaJEvP-1-13 . p

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I B10 W 1055 ABB PCLER A LENTCi.H F-sa2 T-550 P-002 t%Y 27 '97 10:37 t In 1a.4.7-2 Singic,-Phaco Voltcg3 noloyo Pcpe 2 t TABLE OF COWTENTS I ntroCuc ti on.................. Pa ge 2 h precautions.... .............Page 2 ,i ~' Placing Relay into Service....Page 2 ADolication Data..............Page 3 Testing................ .Page 13 INTRODUCTION Thsee instructions contain the information required to properly install, operate, i f and tost certain ABB Ctreuit-Shield k single-chase undervoltage and overvoltage l relays. Types 27,

270, 27H,

590, and 59H.

See the section on Testing for single-chase voltage relays covered by earlier issues of this instruction book. Tno relay is housed in a case suitable for conventional semiflush panel mounting. All connections to the relay are made at the rear of the case and are cleerly numoarec. Relays of the 4118, 411R, and 411C catalog serias are similar to relays of sno 2118, 211R, and 211C series. Both series provide the same casic functions and tro of totally drawout construction; however, the 4118. 411R, and 411C series relays orovide integral test facilities. Also, secuenced disconnects on the 411 series pre-vsnt nuisence operation during withdrawal or insertion of tne relay if the normally-open contacts are used in tne aco11 cation. Host settings are made on the front canel of the relay, behind a removable clear i olastic cover. The target is reset by means of a pusnbutton extending through tne rolay cover. ORECAUTIONS following precautions should be taken when apolying these relays: Incorrect wiring may result in damage. Be sure wiring agrees with the connection lu_,sgram for the 0 articular reiay before energizing. Important: connections for the \\ 411 catalog series units are different from the 211 series units.

2. Acoly only the rated control voltage marked on the relay front canel. The proper colari y must ce coserved when the ce control power connections are made.

t l 3. For relays with dual-rated control voltage, withdraw the relay from the case and check that the movable link on the printed circuit board is in the correct position i for tha system control voltage. 4 High voltage insulation tests are not recommended. See the section on testing ! for Edditional information. !l 5. Tha entire c;rcuit assembly of the elay is removable. The unit should insert ! smoc hly. Do not use excessive force.

6. Sollow test instructions to verify that the relay is in proper working order.

, CAUTION: since troubleshooting entails working with energized equipment, care should l be ta!:cn to avoid personal shock. Only connoetant technicians familiar with good > s::foty practicas should service these devices. r l PLACIMG THE RELAY INTO SERVICE f. RECETVING. HANDLING. STopAGE Joon rcceipt of the relay (ehen not included as part of a switchboard) examine for oing damage. If damage or loss is evident, file a claim at or.ca and promptly 'y asea Brown Boveri. Use normal care in handling to avoid mechanicaJ damepe. 4 4 cl&An and dry. we s f.

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.. ~ 6103951055 ABB PCUER ALLENTOUN F-682 T-850 P-aO3 t%y y e W 10:57 Singis-Phasa V01ttg3 A3 lays Z8 18.4.7.-2 Page 3 2. INSTALLATION ) kountino: s;, The outline dimensions and panel drilling and cutout information is given in Fig. 1 connections: Internal connecticos are shown on page 7. Typical external connections are snown in Figure 2. ImSo'tsnt? connections are different for 4118, 411R, and 411C sertes untcs compared to 2118, 211R, and 2ttC unscs. Contro1 power must be connected in tne proper polarity. For ralays with dual-rated control oower* before energi21nQ, withdraw the relay frce its case and inspect that tne movable link on tne lower printed circuit ocard is in tne correct position for the system control voltage. (For units rated 11ovde, the link should be placed in the position marked 125voc.) Relays rated for use with 12Ovac control power have an internal isolation transformer connected to relay terminals 7 and 8. Polarity of the ac control power to these i terminals need not be observed. These relays hsve metal front panels which art connected througn printed circuit Doard runs and connector wiring to a terminal at the rear of the relay case. The terminal is marked 'G". In all applications this terminal should De wired to grounc. 3. SFTTIMGs PICKUP (VOLTS) The pickup tads are 18 belled by the actual value of'aC input voltage which will cause the relay to operate. Note: operating voltage values other than the specific values provided by tne taps can be obtained by means of an Internal adjustment po tenti ome ter. See section on testing for setting procedure. on these relay models there is nn adjustment for the differential between the operate and reset voltage values. %./ TIME DIAL The time dial taos are identified as 1,2,3,4,5,6. Refer to the time-voltage charac-teristic curves in the Application section. Time dial selection is not providied on relays with an Instantaneous operating cnaracteristic. 4. INDICATORS Taroet: An operation target is provided. The target is set electronically when the output contacts transfer. The target will retain ita indication on loss of de control power. In order to reset the target, normal dc control power must be present and a " normal" ac voltage condition must exist; in other words, for an undervoltage relay tne voltage mest be higher than the sat point, and for overvo~ltage releys. 1ower. APPLICATION DA fA The ABB circuit-ShieldTN single-pnase voltage relays covered by this instruction book provide a wide range of application including undervoltage protection for motors, over and undervoltage protection for generators, and automatic bus transfer,. The relays provide good accuracy and repeatability, and have a' flat response over a frequency range of 15 to 400 hertz. Undervo1*_ ace Relay. Tvoe 27 cataloc_ series 211B. 211R. 4118. and 411R; Typical applications include general purpose undervoltage protection for incoming

lines, and initiation of transfer in automatic bus transfer schoses.

Connections are shown in Figures 2. J ,j Es# Typical external E8 0 if l The relay has an inverse time curve as shown in TVC-5817. .. Cats.Ns. m o 7 - 3 4-a un., wnn 3,

6t03951055 ABB POLER ALLENTOLN F-682 T-650 P-001 f1AY 27 'ga ;g.5g la 18.4.7-2 Singlo-Phs23 Voltage Relayk pcge 4 unde v_ol aae Aetav. Tyto 270. cataloa series 2158. 2:14. 4119. and 411R; ./ 'ypical applications include the initiation uf transfer in automatic bus transfer sentmes. Tyoical external connections are shown in rigure 3. The Type 270 relay nas a definite-time characteristic with 2 ranges available; c.1-1 sacond and 1-10 seconds, as shown in TVC-605820 and TVC-605821. l Undervoltaae Relays. Tvoe_. 274 cataloo series 2119. 211R. 4118. 411R-Typtcal applications include instantaneous undervoltage detection for bus transfer

schcmes, and for generator intertie schemes.

The low range relay is used as a l residual voltage detector in motor bus transfer schemes. l Typical connections are shwen in Figure 3. The relay has an instantaneous operating time as shown in TVC-60581g. j Overvoltace Aelays. Tvoc 59H and Tvoe 690. catalog series 211C and 411C: Thes3 instantaneous and definite time overvoltage relays ars companions to the Type 27H and Type 270 undervoltage relays, and offer similar characteristics where overvoltage protection is required. ] "we time voltage characteristic for the Type 590 is given in TVC-605839. For the as 59H the maximum operating time above 1.09 times pickup is 16 milliseconds. l l l 0 l l Notas on *he Use of AC Control power l In asneral the use of a station battery to provide a reliable source cf tripping and control power is preferred. However, many of the relay types described in this IB cro cvailable for use with 120 vac control power. The output contacts may be used in a 120 vac circuit or in a cacacitor trip circuit where the capacitor voltage is no more than 170 vde nominal. (Consult factory if the higher rating is esquired:

CAP
l catalog suffix.)

The control power for these relays should never be taken from a I cactcitor trip circuit as the voltage is too high and the relay will drain the etocc1 tor in the event of loss of AC supply. l Tyon 27 and 'ype 27D Undervoltage Relays used with 120 van control power in the i "s31f-powered

mode, with both signal and control power taken from the same source, will not maintain their timing characteristics if the voltage drops below I

approximately 85 volta. The relay will trip immediately. If this characteristic is uncoot raole for a particular application, the Type 27H instantaneous relay should be i uccd followed by a pneumatic timer with time delay on cropout. A contact from the timer would be used to trip. The timer wculd be picked uo by a contact of the Type 27H under " normal" line conditions. With undervoltage or loss of voltage, the timer would time out and close its contact in the tripping circuit. If the voltage loss were momentary, the timer would allow riding through the loss without tripping. This -arrangement thus makes the time delay independen*,of control powar and retains ths eenefits of accurate voltage sensing provided by the Type 27H relay. -..~ --._ O i .tnissef (~ 118 Y /$ tf N'1. f f Mf.J t-D, Vf'.U33

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Sing 1c-phaso voltag) R31ays IB 18.4.7-2 ,,,,,,,,,"[,_,9* 5 ____________________e_______________________________________________ SPECIFICATIQMG i Input Circuit" { Rating: 160V, 50/60 Hz. continuous. 300V, 10 seconcs. Burden: 1.2 VA, 1.0 Of at 120 volto. Tapse available models include: Types 27. -27D, -27H : 60 70, 80, 90, 100, 110v TyDes 27D. -27H: 30, 35, 40, 45. 50, 55v 15, 18, 21, 24, 27, 30v Types 530. -59H: 100, 110, 120, 130, 140, 150v 60, 66, 70, 75, 80, 90v Differential between 00erate and Reset Voltages: Type 27: less than 0.5 percent. Ty0es 270. -27H, ITE-590, -5SH: acDroximately 3 percent. Operating Time: See Time-Voltage characteristic curves that follow. Output Circuit. Each contact e 125 Vde: 30 amoere tripping duty. 5 ampere continuous. 0.3 ampere Dreak. Operating Temperature Range: -30 to +70 deg. C. Control Power: Models available for 48/125 Vdc e 0.08 A max. 48/110 vde e 0.08 A max. 24/ 32 vac e 0.08 A max. 120 vac 50/60 Hz. e 0.08 A. ,7 Allowao1C variation: 24vdc noininal: 19-29 vde 32vde 25-38 48vde 38-58 110vdc 88-125 125vdC 100-140 120vac 95-135 vac Tolerancas: operating Voltage: +/- Ss These tolerances are based on the operating Time: +/-10s printed dial markings. By using the calibration procedures given later in this book, the relay may be set precisely to.she desired values of operating voltage and delay with excellent repostaoility. l Repeatabilitys variation in operating voltage for a 10 volt variation in control voltage: 0.2 volt, typical. variation in operating voltage over the tamoerature range 20-40 des C: 0.5 volt, typical. Dielectric strength: 1500 vac, 50/60 Hz., all circuits to ground. Seismic Capability: More that 6g 2PA biaxial broadband multif requency vibration without damage or malfunction. (ANSI C37.SS-1978) M asheent [.. Stf [of4jf -gsls, sgo. M/M-H_ E:h ts. -V4YIIJ A

-5 W2951055.. A3B PCLER GTOLN -622 -Bec :-006 It 13.4,7-2 Sin 910-Phis* Volt:9e Daleys % 2e ' 9. a. g page s . S DO t M _ __ L1FS. Wf, p._ 6d4J r I8643 _. CJ4 6 49 ~ ~ 1 g i r-i e 3 l l *= I l "--9. i ,y l l un-i L___ ,._____._.) l o=cenoasAas@ f acast vtw StoC witw s e46 Osa s0LtS M 4 i i !si";'* M6&B

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f a _sar_ stuo muustes 3790 asameans l u,, ec. e Isaca varw tanca vuw O 16 point block 12 point block Figure 1: Relay Outline and Drilling J J 4 d l 52 wn mm ._L. z-X ^ + t c D NTW D t. C O MTR DL. Y power Pawen ( SOURCE g -- M S E Tc s, Figure 2: Typical External connections Note: Refer to Internal Connection Diagrams and Contact logic Chart on page 7 to select the specific terminal numoors for the output contact ( *X" and *Y") for the particular.. relay being - - used. Additional ty. a table has beerg provided on page 15 y* as a cross-reference. 1^ J Attastssd N 2 br ef .. Cals. Ne W-E-B '33 Es', t/(E M

old #a&d:a -ec M ttv 4. :-t6 + A.k4 F-662T-@ p g g --,, 7' ~ Sing 1G-Pntse W '-*s- ,,.g ..g y INTERNAL CCHNECTION DIAGRAMS AND OUTPtf1* COMl'ACT LC,GIC s The following tables and diagratns define the output contact states under all possible measured inout voltage and the control oower supoly. "AS SHOWN" conditions of the resans that the contacts are in the s Mte snown on the internal connection diagram for relay being considered. " TRANSFERRED

means the contacts are in the opposite the state to that shown on the internal connection diagrass.

FOR DIAGRAM 120211C

=

------------ ---------------------------- --Contact State Condition Cat. Serlas: 211Rxxx5 211BxxSS 211Cxxx5 Norma 1 Controi Power As Shown As Shown As shown AC Input Voltage Belew Setting Normal Centrol Power Transferred Transferred Transferred AC Input Voltage Abovo Setting Transferred As Shown As Shown No Control Voltage FOR DIACRAN'160210A Contact State Condition Cat. Series: 411Rxxx5 411Bxx65

.11Cxxx5 kormal Control Power Transferred Transferred AS Shown AC Input Voltase Below Setting Normal control Power As Shown AS Shown Transferred AC Input Voltage Above Set *ing As Shown Transferred As Shown No Control Voltage l sinate-nase wt saae Relays sinese-M ase Val *ase R*3*,, 1&D21eA sea. ,,,,,,, y,,,e,,, 120222c case 91 os os = 3 o2 ot s os 3 3 oz y U U e H .[ .C ois s o u e os otr u a s e 1 6 i + 4 t m.s.nen E w 7,e 5 Cale. No,Mg).re.33 hk Mt. V9'in f 7

maa r m. .w e cca .u.. a ~y, _. y. g Is'10 4,7-2 Singlo-Phase Vsittg2 Col.=ys g P:pe 8 CHARACTERISTICS OF Coe40N UNIT,3 he following chart gives the basic characteristics of various Circuit-ShieldT" .ngle-onase-vol t.a ge relays from their catalog number creakdown. The relay catalog number will always be found on the front panel of the relay. Do not interpret this cntet as a way to specify a relay for purchase as not all combinations are avoitable. For new projects refer to current catalog pages for the latest listing of standard relays, or contact the factory. 21 1 R 1 1 7 5 BASIC FUNCTION AND PACKAGE STYLE .......______...... /- .g....._.._ 211 Single.onase voltasa relay in Standard Case e J 411 Single-phase voltage relay in Test Case 42 LAY TYoE AND FUNCTION i l a TvPES 27 -270 -27H Undervoltage Relay with Type II contact logic l l ........__......-_....___..._____......_..___..= C TYPES 59 -590, -59H Overvoltage Relay D TY8E 27/59 under/Overvoltage Relay (obsolete, replaced by 4100 series) j t E _ TYPE 59G Ground vol tage Relay (obsolete, replaced cy 210E/410E series) =- L TYPE 27/59 undervoltage Relay (obsolete, replaced my TYPE 27N) ....___.....= = Q TYPE 27G 180 Hz. Undervoltage Rela / (obsolete, replaced by 410Q) R TYPES 27 -27D, -27H Undervoltage Relay with Type I logic .__..== s lHE DELAY CHARACTEMISTIC 1 Inverse Time Delay Characteristic 4 Definitt Tima Characteristic 1-10 second range [ 6 Definite Time Characteristic 0.1 1 second range k ............... = - - -_= 0 Instantaneous Characteristic a tc VOLTAGE TAP RAWGE _= = ---....____.... t 1-Standard Range: Typen 27.-27D.-27H = 60-110vt Types 59.-590.-SSH = 100-150v; Type 59G n 3 1Bv ( 2 Low Ranga: Types 27D,-27H = 3D-5$v; Types 59D,.59H = 60-90v, Type 27G = 1-12v; Type 5sc = 1-6v ,y l 3 5 Soecial Range: Types 27D -27H = 15 30v g .T. a.- CONTROL VCLTAGE 6 120 vac 4 =..._. .s 7 48/125 vde OUTPUT CONTACTS C U 24/ 32 vde 1 2 normally. open g4 x t 48/110 vde 5 2 form C r ...f G 3Cg ef/5 i E r" a [ .'... Cals. lis. /YN4 'WE i Ey .a:t Es. ]/gfM3 '

--. -- - - ~ 3gB"SM Ai3kTh ~ ~5 ~ 'M M NY _W ' M M single-Pness voltage na says Page S D itMt.V0iTAGE CHARACTEti! TICS VOLTAGE Te P SETTING 3

40. M. m. 30.100,t 1e s

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, 610. Tf'.1055 'EB POLER 4.L:_HTCLN F-6c2 T-253 p-012 my ~. c. ,:0,. IS 18.4.7-2 Singlo-Phtse V01tt3a Ralcyo Pace 12 TESTfMG 1, WAIWfEWANcG AND RENFWAL DApTS No rout 1ne maintenance is required on these relays. Follow test instructions to i verify tnat tne relay is in proper working order. We recommend that an inoperative relay oe returned to the factory for repair; however, a schematic diagram, and in I some cases a circuit description, can be provided on request. Renewal parts will be cuoted by the factory on request. There are many earlier versions of these single-phase voltage relays which are now ooso)ete and nave Deen superseded. If you have a relay which has its front panel i l stimoed with Instruction Book IB 16.4.7-2, but which is not covered by this Issue E of the ocok, you should recuest Issue D from the factory. Also see para 9Paph 6 on oosolete relays. 211 series Units Orawout circuit boards of the same catalog number are interchangible. A unit is icentified by the catalog number stamped on the front panel and a serial numbe r stamoed on the cottom sioe of the drawout circuit board. Tne board is removed by using the metal pull knubs on the f ront panel. Removfng the ~ ocard witn cne un t : to service may cause en undesired operation. An la moint extender ocard (cat 200x0018) is available for use in troubleshooting and ca11 oration of tne relay. 411 Series Units H3tal handles provide leverage to withdraw the relay assembly from the case. Removing ths unit in an aoplication that uses a normally closed contact will cause an cocration. The assembly is identified by the catalog number stamoed on the front 8, l ognel and a serial numoer stamoed on the bottom of the circuit board. [ I Test connections are readily made to the drawout relay unit by using standard Danana { elug leads at the rear vertical circuit ocard. This rear board is marked for easier t identification of tne connection points. .i A test plug assemoly, catalog 400X0002 is available for use with the ali series I units. This device plugs into the relay case on the switchboard and allows access to i all extern'al circuits wired to the case. See Instruction Book IB 7.7.1.7-8 for i d0 tails on the use of this device. f U e]I 2. HIGH POTENTIAL TESTS d: High potential testa are not recommended. A hi-pot test was performed at the factory before snipping. If a control wiring insulation test is recuired, partially withdraw the relay unit from its case sufficient to break the rear connections before applying f' the test voltage, t .L I( 3. BUILT-IN TEST F11NCTION Ba sure to take all necessary precautions if tests are run with the main circuit En3rg12ed. Tna euilt-in test is provided as a convenient functional test of the relay and assoc-iotcd circuit. When you depress the button labelled TRIP, the measuring and timing circuits of the reiny are actuated. When the relay times out, the output con tacts iransfer to trip the circuit breaker or other essociated, circuitry, and the target is i dic$ layed. The test button must be held down continuously until operation is i ~ obtained. For the undervoltage relays, the timing is equivilent to that for a [ comolete loss of voltase. l I L Attsdassi C su Met & .I Csis, Ms. ffn912.- ?] I' .As v. t/r>7tt

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P&ge 13

4. ' AccEPTAycf TESTS

\\ Follow calibration Drocedures under paragraph 5. on inverse or definite-time relays, select Time Dial #3. For undervoltage relays check timing by dropoing voltage from 120 to 0 volta. For overvoltage relays check timing by increasing voltage to 150g of pickup. Telerances snould be within +/-5x for pickup and +/-10s for timing. Caiioration may be adjusted to the final settings required by the application at this time.

5. CALIBRATION A typical test circuit is snown in Figure 3.

Connect the relay to a proper source of control voltage to maten its nameplate rating and internal plug setting for cual-rated units. The ac test source should be harmonic-free. Sources using ferro-reso-nant-transformer regulators should not be used due to hign harmonic content. For relays with time delay, the time-dial tap pin should be placed in position si l (fastest) when check 1ng pickup and drecout voltages. The voltage snould be varied l slowly to remove the effect of the time delay f rom the voltage measurements. l l Pickup may be varied between the fixed tap values by adjusting ;he internal pickup calibration potentiometer. For 211 series units the 18 point extender board provides easier access to the internal Dots. Place the voltage tan pin in the-nearest value and adjust the internal pot, repeating the test until the desired e perating voltage 1s octained. If the internal pot has insufficient range, move the tap pin to the next closest value and try again. Similarly the time delay may be adjusted higher i l or lower snan tne values snown on the time-voltage curves by means of the internal pot. The internal calibration pots are, identified as follows: ..-____.- _[..[$_.__...----_ -..$_.- $$.__.[.. Type 27 Type 59 R10 R25 *

Note: RT can also be used as a secondary i

I Types -27D, -27H R13 R38 means of adjustment. Types -590, -59M 1 6. OBSOLETE UNITS The chart on page 8 indicates that certain of the 211 and 411 series single-phase voltage relays have been replaced by. improved versions. The following gives a quick reference to the instruction books for the newer unita. Should you need the instruc-tion book for the earlier units that are nameplated to call for IS 18.4.7-2,- request 1ssue O from the factory. Type 59 Inverse-time overvoltage Relay: ll Catalog series 211C11xx replaced by 210C11x5 and 410C11x5 series, see IB 7.4.1.7-1. ~ Type 59G, Ground Overvoltage Relay Catalog series 211E replaced by 210E and 410E series, see IS 7.4.1.7-9. l [ Type 27G, Third Harmonic undervoltage Relay: Catalog series 211Q replaced by 410Q series, see IB 7.4.1.7-9. l i i Type 27/59, under/Overvoltage Relay: Catalog series 211D replaced by 4100 series, see IB 7.4.1.7-1. Types 27/59A, -27/590, -27/59H Under/overvoltage Relay: Catalog series 211L replaced by Type 27N, catalog aeries 2117 and 4117, see IS 7.4.1.7-7 (Note: the 211L relays were not used for overvoltage protection; they were UndePVoltage relays with adjust 4 Die pi,GkWP and dropout voltages.) y + anut eas C. U gr/5 i. we. u. .re-n 1 .:: n s. vp w r .~. -.

610 c51M5 459 EtB 24 LENTCw -sa2 7-350 P-011 r%Y 7'

r., :,3
1a ft.4.7-2 Sin 310-Fh:co volt:9e A31cy3 Pige 14 SELECTOR ll

\\ VOLTMETER l l l l l 1l IliIl N TinER g l SET 1 5OURCE1 5OURCE 2 IIIII 5" TIMER 1 E ET E Q Q Q Q i TEST SET si N/ se T1 T2 I il t ' + DC CONTROL i 05 05 4 3 02 01 ) B gl Y + O 1 g ll k l k 0 15 15 14 1s h12 11 10 O 9 v v Ti TE

I

'l Figure 3: Typical Test Connections Notes: Test connections shonra for a 411C or 411R series unit. For other relays consult the Internal Connection Diagrams and Contact Logic Chart on og 7 T:' before selecting the output contact to usa to stop the timer. If the test set voltage level adjustment does not have sufficient resolution to properly check and set the pickup voltage, then insert a variac (ac.justacle autotransformer) and external voltmeter between the test source and the relay input terminals. T9 .f y I I {f M h SLerd A:tsatse Cale. No. P'0NbTL -33 5 {h J3 No. _1/&?.I'13 ,2 i a

610)351053 ABB POLER C4.LENTdJ1 l-6a2 -eg :.g",,- ' J, 2,,, J;, 'j :0, , 6 singic-Phaas voltege Rolsys Page 15 l Additional Mous on Fioure 2. TvDical External Connections; The note with Figure 2 indicates that the terminal numbers associated with the output contact labelled "X* and *Y" in the diagram must be selected by referring to the internal connection diagram and contact logic cnart for the particular relay being consicered. As a cross-reference in this selection, the following table lists the terminals associated with the.normally-open contacts that close for tripping for the bas 1C *alay function. In other words, for an undervoltage relay, the contacts that close for undervoltage, and for an overvoltage relay the contacts that close on over. voltage. An "x" in the catalog number represents any digit (" don't care"), Unoervoltage Relays Contacts that CLOSE on Undervoltage a ca: Series 211Rxxx5 5-o 11 12 211Bxx65 56 11 12 411Rxxx5 11 - 12 14 - 15 4119xxx5 11 - 12 14 - 15 Overvoltage Relays Contacts that CLOSE on overvoltage a 2 9-to Cat Ser as 211Cxxx5 1 i 15 ] 12' 14 411Cxxx5 11 = (Contact closure is after appropriate time delay.) l I I ,e m.- 3, 6 d - y ,,p.,,,,,,,. -e-n ~ T itt %3.

.o ANSI /IEEE C57.13-1978 INSTRUMENT TRANSFORMERfr t. Fig 3 P Limits of Accuracy Classes for Voltage I < Transformers for Metering Service 4 d l LOl2 LOO 6 LOC 30 J. tll ~ 1, r N $ Loos 4403 Loot 5 \\ g i

e !

g I.000 00000 h .l'g. Q j 4994 099r Q9985 p 4, 0 988 0 994 0.9970 t: f ?, O' Y l .c + t5 p*--. -is ~ 5 0 +$ + . s0 r -30 20 -C C +c +20 +50 0 -.60 -40 -20 0 +20 +40 +60 PMASE ANGLE-MINyTES LE ADING - e---- L AGGING d l . NOTE: The transformer characteristics shalllie w ti hin the limits of the parallelogram for all voltages between N Il + 1 90 percent and 110 percent of rated voltage. l-l -l... ! l l Table 8 Basic Impulse Insulation Levels for Current Transformers with the Same Dielectric Test Requirements as Power Circuit Breakers Maximum Maximum System Line to Ground. BIL and Full-Voltage (kV) Voltage (kV) Wave Crest (kV) 121 70 550B 145 84 650B 169 98 750B 242 140 900B 362 209 1300B 550 318 1800.B 800 462 2050B NOTEiThe letter "B" BILs and corresponding system volt- ~ ages have been estaclished by the ANSI C37 Committee. l I I 4HA~+ D m /4 i n fd NP-R -33}}

ML20198A901

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