ML20058N622
| ML20058N622 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 04/13/1993 |
| From: | CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | |
| Shared Package | |
| ML20058N620 | List: |
| References | |
| EA-ELEC-VOLT-01, EA-ELEC-VOLT-012-R00, EA-ELEC-VOLT-1, EA-ELEC-VOLT-12-R, NUDOCS 9310200071 | |
| Download: ML20058N622 (27) | |
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PDR ADOCK 05000155 I 1-,
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6 E4CI-3 reem 3698 9 89 AtSACCiNUCLEAR PLANT E4-6Ec - v41'et2. leso ENGINEERING ANALYSIS CHECKLIST Affected Revision items Affected By This EA Yes No Required identify
- Closec.t Other EAs O 6 2.
Design Documents Elec E-38 through E-49 0
5 3.
Design Documents Mech M259, M664, M665 O
O 4.0 LICENSING DOCUMENTS 4.1 Final Safety Analysis Report (FSAR)
O O
4.2 Technical 5pecifications O
d 4.3 Standing Order 54 0
R 5.0 PROCEDURES 5.1 Administrative Procedures O
M 5.2 Working Procedures G
O id A W.50P4 ut;llbe. vp W 5.3 Tech 5pec Surveillance Procedur es O M
$Ni" ND'
- 6. 0 OTHER DOCUMENTS
'1 Q-List O M j
Plant Drawings O
3 6.3 Equipment Data Base O
3 6.4 Spare Parts (Stock / MMS)
O a 6.5 Fire Protection Program Report O
O (FPPR) 6.6 Design Basis Documents 0
0 i
6.7 Operating Checklists O B 6.8 SPCC/PIPP Oil and Hazardous Material Spill Prevention Plan O E 6.9 EEQ Documents O G Do any of the following documents need to be generated as a result of this EA:
Yes No i
1.
Corrective Action Document?
O O Reference 4
2.
Safety Evaluation?
O E Reference 3.
EEQ Evaluation 5heet?
O O
Reference
'C Review of this EA Required?
O G Completed By Date NkN
- identify Section, No, Drawing, Document, etc.
Proc No 9.11 TECHNICAL REVIEW CHECKLIST Revision $
O Page 1 of 1 This checklist provides guidance for ths review of engineering analyses.
Answer questions Yes or No, or N/A if they do not apply.
Document all coments on a 3110 Form.
Satisfactory resolution of coments and completion of this checklist is noted by the Technically Reviewed signature on the Initiation and Review record block of Form 3619.
(Y,N,N/A) 1.
Have the proper input codes, standards and design V
principles been specified?
/
2.
Have the input codes, standards and design principles been properly applied?
/
3.
Are all inputs and assumptions valid and the basis for their use documented?
)/
4.
Is Vendor information used as input addressed correctly in the analysis?
sf 5.
If the analysis argument departs from Vendor Information/Recomendations, is the departure justification documented?
yA 6.
Are assumptions accurately described and reasonable?
s,
/
7.
Has the use of engineering judgement been documented and justified?
v
(
8.
Are all constants, variables and formulas correct and properly applied?
,i 1
i 9.
Have any minor (insignificant) errors been identified?
If i
yes; Identify on the 3110 Form and justify their y'
(
/
insignificance.
10.
Does analysis involve welding?
If Yes; verify the following information is accurately represented on the analysis drawing (Output document).
8 e Type of Wald e Size of Wald 1
o Material Being Joined e Thickness of Material Being Joined e Location of Weld (s)
- Appropriate Wald Symbology
- 11. Has the objective of the analysis been met?
Y
- 12. Have administrative requirements such as nurbering and format been satisfied?
g/
f
f CORSEltf1 POWgr P ALISADES NUCLEAR PLANT EA-ELEC-VOLT-012 ENGINEERING ANALYSIS WORK SHEET i
ARADEMWFT N'tf Total Nurrber of Sheets 6
i rile Pag-28-15 Title Big Rock htinimum St at ion Power Bus Volt ace level s Wen Fed From 46hv System and 24GLV Voltage Pequlator Out of Service m-i INITI ATION AND REVIEW calculation Status Preliminary Pending Final Superseded D
D p
D Initiated Initiator Review Method Check Technically Reviewed Devt R
E Appd Alt Det Qual Appd CPCs By Date V
'Cale Rvw Test j
By Appd 8
Description By Date By j
0 original issue y y/
1/11/93
/
k 7//J/fy g
/
f System (s) 4 6k w System Referenced in DBD (Y/h) N/A DBD No.
Not Aco11 cable Input Calc / Rev CJB-07?191-1 Rev 0, File: PAC-78-15 i
/
1 1
/
Purpose (FC/D-PAL etc) Voltage study Key Words (up to 60 charc) volt age study veri fying acceptability of the 46ky System I
to adequately supply station pewer loads while the 7400V volt age regulator is bypa s sed Internal File Wo.
PAC-29-15 Cale Type Voltage Study 1
i EA-ELEC-VOLT-012 REV 0 page 2 of 6 I.
OBJECTIVE This engineering analysis is in response to open item 92-019-01 of The Big Rock Point Nuclear Plant's Electrical Distribution System Functional Inspection (Docket No. 50-155), conducted from August 17, 1992 through September 22, 1992 (see attachment A).
This analysis will resolve open item 92-019-01 by demonstrating that the 46kv line can provide acceptable voltage levels at station power buses during a design basis accident (DBA) while the 2400V voltage regulator is out of service.
II.
ANALYSIS INPUT REFERENCES 1.
Report, Docket No. 50-1553 from The United States Nuclear Regulatory Commission Region III to William L.
Beckman (Big Rock Point Nuclear Plant-Manager), Section 3.1.1 Automatic Voltage Regulator page 2, dated October 30, 1992 2.
Big Rock loca case; Calculation GJB-022191-1 Rev 0,
" Big Rock, 1991 Adequacy of Station Power" File: PAG-28-15 3.
The Power System Simulator (PSS/E), Version 20.0, by Power Technologies, Incorporated 4.
QA Calculation DRS-110184-1 Rev 0 Attachment B sheets 1 and 4, File: PAG-28-07 III. ASSUMPTIONS 1.
It is assumed that the impedance of the bypass switch to the 2400V voltage regulator is equal to Z=
R+jX=0,.00058+j0.00333 ohms or Z=0.0010+j0.0058 pu (on 10MVA base).
This impedance value is equivalent to 88 feet of two runs of single conductor 1,000_MCM cable.
2.
Based on The Big Rock Loca 1991 Steady State System Simulation (reference 2), it was determined that the voltage level on the 46kv system at the Emmet Substation (which is the alternate feed to the Big Rock Nuclear Plant) would not drop below 0.952 per unit (43.8kv)- during Loca conditions at the plant.
~
t EA-ELEC-VOLT-012 REV O page 3 of 6-l j
IV.
ANALYSIS l
A.
Method Station power loads while fed via the 46kv supply during a Loca scenario (minimum 46kV system feed 0 0.952 pu, 43.8kv), per Calculation GJB-022191-1 Rev 0, i
was used as the basis for establishing a maximum
)
station power loading scenario (reference 2).
The-Loca load scenario was then modified such that the 2400V l
voltage regulator, which feeds station power loads, was a
bypassed.
The 2400V voltage regulator was bypassed i
thru a switch having an impedance value of I
approximately Z=0.0010+j0.0058 pu (on 10MVA-base),.see
-j assumption 1.
Finally, a PSS/E computer simulation was run to determine the acceptability of. station power bus i
voltage levels.
- I
'I B.
Discussion' l
Modification to the Loca base Case The Loca base Case (per Calculation GJB-022191-1 Rev 0) was modified by bypassing the 2400V voltage regulator.
The actual impedance across the bypass switch of the 1
2400V voltage regulator was indeterminable.- However, i
the nominal impedance across the 2400V voltage regulator was calculated ' to be Z=0.0004 6+j0.0050 pu (on l
10MVA base) see attachment F.
It is assumed that the actual impedance across the bypass switch of the 2400V i
voltage regulator is less than the calculated nominal impedance across the 2400V voltage regulator.
Therefore the modeled impedance across the bypass j
switch of the voltage regulator was set at Z=0.0010+j0.0058 pu (on 10MVA base), which-is equal to 1
88 feet of two runs of single conductor 1,000.MCM cable.
A branch' representing an impedance of Z=0.0010+j0.0058 pu -(10MVA base) was inserted into the Loca base case between buses 354 and.343, and the 2400v 1
voltage regulator'was bypassed (see attachmeat-D).
The modeled impedance across the bypass switch of the 2400v voltage regulator (for this analysis), was purposefully I
set larger than the calculated nomimal' impedance across r
i
EA-ELEC-VOLT-012 REV O page 4 of b the 2400V voltage regulator to yield conservative voltage levels at the station power buses.
v Voltage Levels of Station Power Buses i
The minimum 46kv system voltage during a Loca and station power loads fed via the 46kv system (138kv system feed unavailable and the 2400V voltage regulator out of service) is 0.952 per unit (43.8kv).
During a j
Loca condition with the 46kv system voltage at 0.952 i
per unit and the 2400V voltage regulator out of service (bypassed), station power bus voltages are within the equipment limits (see attachment E).
Table 1 summarizes the worse case bus voltages.
Table 1 Loca Condition-Min 46kv System Voltace
~ Bus Voltaces Bus Minimum Bus Reculator O/S Voltace Limit-2400V 0.956 0.89 Bus lA 0.924 0.90 Bus 2A 0.902 0.90 Bus 802 0.901 0.863 Bus 407 0.888 0.863
~
As Table 1 indicates, the worse case voltage is 0.902 i
per unit (433V) on 480V Bus 2A.
The minimum voltage limit on Bus 2A is 0.90 per unit (432V).
Although the 1
Bus 2A voltage level (0.902 pu) is near the bus minimum voltage limit (0.90 pu), equipment fed from this bus will still perform their intended functions.
The conservative value assumed for the 2400V voltage regula, tor bypass switch impedance, yields conservative voltages in the simulation.
All bus voltage levels I
listed in Table 1 are above their minimum voltage i
limits.
During the Big Rock Nuclear Plant's Electrical Distribution System Functional Inspection (EDSFI), from August 17, 1992 thru September 22, 1992, an informal response was presented (see attachment B, regulator o/s). Comparing the minimum bus voltage levels of Table i
EA-ELEC-VOLT-012 REV 0 page 5 of 6 11 (attachment B, regulator o/s)~with those of Table 1 (above) illustrates that the assumption made in the informal response of a 5% additional voltage drop was very accurate.
Attachment C list the output of the Loca Case Scenario at a minimum 46kv system voltage (0.952 per unit) and the 2400v voltage regulator out of service (bypassed).
i Attachment D illustrates the one line diagram for the Loca Case Scenario listed in attachment C.
Attachment E list the station power equipment voltage limits.
V.
CONCLUSION t
This Engineering Analysis has determined that the 46kv system line can provide acceptable voltage levels at the Big Rock Nuclear Plant's station power buses during a design basis accident (DBA) while the 2400V voltage regulator is out of service.
The minimum 46kv system voltage during a Loca and station power loads fed via the 46kv system (138kv system feed unavailable and the 2400V voltage regulator out of service) is 0.952 per unit (4 3. 8kv).
During a Loca condition with the 46kv system voltage at 0.952 per unit and the 2400v voltage regulator out of service, station power bus voltages are within the equipment limits (see attachments C and E).
Table 1 below summarizes the worse case bus voltages and their voltage limits.
l Table 1 Loca Condition-Min 46kv System Voltace Bus Voltace Bus Minimum Bus Reculator O/S Voltace Limit 2400V 0.956 0.89 Bus lA 0.924 0.90 Bus 2A 0.902 0.90 Bus 802 0.901 0.863 Bus 407 0.888 0.863 j
i
EA-ELEC-VOLT-012 REV 0 page b of b Table 1 indicates that the voltage level at Bus 2A is 0.902 per unit (433V), whereas the Bus 2A minimum voltage level is 0.90 per unit (432V).
Although the Bus 2A voltage level (0. 902 pu) is near the bus minimum voltage limit (0.90 pu),
equipment fed from this bus will still perform their
'3 intended functions.
The conservative value assumed for the 2400v voltage regulator bypass switch impedance, yields i
conservative voltages in the simulation.
All bus voltage
[
levels listed in Table 1 are above their minimum voltage limits.
I L
Summary of Attachments i
(A)
Nuclear Regulatory Commision (NRC) Docket No. 50-155 sec. 3.1.1 Automatic Voltage Regulator, page 2, dated October 30, 1992 (B)
Informal information provided to the NRC during the Big Rock Nuclear Plant Electrical Distribution System Functional Inspection (from August 17, 1992 thru September 22, 1992)
(C)
Loca Base Case Output generated by PSS/E Version 20.0 (D)
One Line Diagrams for the Loca Base Case Output (E)
Station Power Equipment Voltage Limits for the Big Rock Nuclear Plant (F)
Calculation of the nominal impedance of the 2400V voltage regulator
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UNITED STATES i
8,,
NUCLEAR REGULATORY COhMisslON w
if n e REClON til 6
DNd e
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tsomoostvgornoao k-@B ccen etsvn. itusois son st M eu ezwi,,4 0 0 $92
~ E L %sQ Docket No. 50-155 Consumers Power Company ATTN:
Mr. William L. Beckman i
Plant Manager Big Rock Point Nuclear Plant, g bJ py" f g g 10269 US 31 North Charlevoix, MI 49720
Dear Mr. Beckman:
This refers to the special electrical distribution system functional inspection (EDSFI) conducted by Mr. D. Butler and others of this of fice on August 17 through September 22, 1992.
The inspection included a review of activities authorized for J
your Big Rock Point Nuclear Power Plant.
We discussed our findings with you, Mr.
D. Hoffman and others of.your staff at the i
conclusion of the inspection on. September 22, 1992.
The enclosed copy of our report identifies areas examined during the inspection.
The inspection team assessed the design, implementation, and engineering technical support relative-to the j
electrical distribution system (EDS).
The inspection consisted of a selective review of design calculations, relevant procedures, representative records, installed equipment, observation of field activities, and interviews with engineering i
and technical support staff.
The team considered the EDS at Big Rock Point to be capable of performing its intended functions during all plant operating and accident conditions.
However, the team noted that the Big Rock Point design was unique in that the plant was not designed to meet single failure criteria and as a result of being licensed prior to the existence of 10 CFR 50, Appeadix A, was not designed to meet GDC 17, " Electric Power Systems."
Therefore, although the team concluded the EDS met its design basis requirements, it was clear to the team that the design of the Big Rock Point EDS was not as robust as the more current EDS designs.
The team identified several weaknesses during the inspection.
Examples included the lack of calculations to support certain design features; the lack of a fuse control program; instances of errors and non-conservatisms in design calculations leading in one case to an undersized EDG room ventilation fan; inadequate post modification testing;-and instances of weak engineering i
involvement in maintenance related activities as evidenced Cate r-1, FA-ELSt-V0tT- 011wt Al;och..3ent A
1 1.
Eh of
/
Specification required frequency.
This deficiency appeared to be the result of the Chemistry Department's decision to schedule the quarterly surveillance by month instead of by date.
Corrective actions were taken to change the method of scheduling surveillances to target quarterly surveillances by a specific date.
The team concluded that the licensee's corrective actions were adequate to prevent recurrence.
No other late Chemistry Department surveillances were identified by the team.
This item is considered closed.
3.0 Electrical Systems 3.1 AC Systems To assess the capability of the onsite and offsite EDS, the team reviewed the regulation of the EDS loads, EDS system stability and reliability, EDG loading and power rating, electrical interf aces of the safety system buses, equipment voltage ratings, equipment short circuit ratings, overcurrent protection schemes and coordination of protective devices.
The team performed plant walkdowns of the EDS equipment and verified that the operational, environmental and seismic criteria had been correctly applied.
-! 3.1.1 Automatic Voltace Reculator
5 The team noted that the licensee did not have a calculation to demonstrate that the 46kV line could maintain adequate voltage levels during a design basis accident (DBA) with the 2.4kV voltage regulator out of service.
The licensee performed a preliminary calculation which demonstrated that DBA loads could be supplied from the 46kV line without the voltage regulator in service.
The licensee stated that a formal load flow calculation will be performed by engineering.
In addition, applicable operating procedures will be revised to incorporate a note informing the operators that with the voltage regulator out of service, the 46kV line can supply only accident loads and not normal plant loads.
The team considered the lack of a calculation to demonstrate the 46kV line could maintain adequate voltage during a DBA with the 2.4kV voltage regulator out of service to be a design weakness.
pending NRC review of the completed load flow calculation and operating procedure changes, this is considered an open item (155/92019-01(DRS).
3.1.2 Overvoltace on Uncrounded 2400 Volt System The team was concerned that the 2.4kV electrical system, designed to be ungrounded, was susceptible to high voltage transients caused by intermittent ground faults.
An ungrounded system is designed to permit continued operation with a single ground fault on the system.
However, ungrounded systems are susceptible to 2
C): m $$$' Y0d~ 0$'l N AHrhmM A
i d
9-s
Table 10 LOCA Conditions - Max 46 kv System Voltage Bus Regulator I/S Limit 2400 V 0.996 1.054 Bus 1A 0.966 1.008 Bus 2A 0.945 1.000 Bus 357 0.968 1.008 Bus 358 0.948 1.008 I) LOCA - 46 kv Feed - Minimum System Voltage Per Attachments A and B, the minimum 46 kv system voltage during a LOCA and station power loads fed via the 46 kV system (138 kV system feed unavailable) is 0.9520 per unit.
The single contingency criteria is the loss of the 138 kv system feed.
During a LOCA condition with the 46 kv system voltage at 0.9520 per unit and the 2400 V voltage regulator in service, station power voltages are within the equipment limits. The regulator is on the 0.95 per unit tap.
A summary of the loadflow is in Attachment G p.6.
Table 11 summarizes the worse case bus voltages.
Table 11 g T'pt, svo *
- LOCA Conditions - Min 46 kv System Voltage
__ g7 g e* 4. pp, Bus Regulator I/S
,,_N _
Limit 2400 V 1.007
,95 7 0.89 Bus 1A 0.978 0.90
,9 g Bus 2A 0.957 0.90
,g Bus 802 0.957
'pj 0.863 r
Bus 407 0.944 0.863 I
LOCA - 4 6 kv Feed - Conclusions Station power voltages during all LOCA conditions while being fed via the 46 kv system are adequate.
j J) Cold Shutdown - 138 kv Feed - Regulator In Service
]
During cold shutdown conditions, the maximum and minimum Big Rock 138 kv system i
voltages are assumed to be similar to the maximum and minimum 138 kv system voltages during LOCA conditions as described above in the "LOCA - 138 kv Feed" section. The maximum 138 kv system voltage is 1.0477 per unit (144. 6 kv) with the 2400 V regulator in service (multiple contingencies). The minimum 138 kv voltage with the 2400 V regulator in service is outlined in Table 7 During a maximum 138 kv system voltage of 1.0477 per unit and cold shutdown conditions with the 2400 V regulator in service, station power voltages are I
within equipment limits. The regulator is on the 1.05 per unit tap.
Attachment H, p.1 summarizes the cold shutdown loadflow conditions in the plant.
Cole No MM-V0t.T-oit Resc
/. Icthment b
b b
of Sh
TO 46 KV SYSTE.M
."8 TO 138 KV SYSTEM ni-
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f ntG ROCK LOCA LOADS W/ VOLTAGE REGifLATOR DUS - VOLTAGE (PU)
[j 46 KV SYSTEM FEED littANCH - MW/MVAM
--i WED, AUG 28 1991 16:53 EQUIPMENT - MW/KVAR W
PT1 INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E FRI, FEB 26 1993 10:16 BIG ROCK LOCA LOADS U/O VOLT REG (PER GJB-022191-1 REV 0)
BOS DATA 46 KV SYSTEM FEED 8 MINIMUM VOLTAGE OF.952PU EOS$
NAME BSKV CODE VOLT ANGLE PLOAD QLOAD SHUNT AREA ZONE 1 BG RK 7 4 6.0 1 0.9264
-1.4 0.0 0.0 0.0 0.0 1
1 4 EMMETT6 46.0 3 0.9520 0.0 0.0 0.0 0.0 0.0 1
1 29 BGRK 138 138 1 0.9520 0.0 0.0 0.0 0.0 0.0 1
1 86 SWING 138 1 0.9520 0.0 0.0 0.0 0.0 0.0 1
1 200 FIRE-P 0.48 1 0.8888
-6.9 0.1 0.1 0.0 0.0 1
1 201 M07071 0.48 1 0.9011
-6.8 0.0 0.0 0.0 0.0 1
1 202 Mo7070 0.48 1 0.9011
-6.8 0.0 0.0 0.0 0.0 1
1 204 Mo7068 0.48 1 0.9017
-6.8 0.0 0.0 0.0 0.0 1
1 343 VOLTREG 2.40 1 0.9511
-2.3 0.0 0.0 0.0 0.0 1
1 350 SBLDG 0.48 1 0.9483
-2.6 0.0 0.0 0.0 0.0 1
1 351 GEN 13.8
-2 0.9180 0.0 0.0 0.0 0.0 0.0 1
1 352 TRANSFR 2.40 1 0.9585
-2.2 0.0 0.0 0.0 0.0 1
1 353 SWGR 24 2.40 1 0.9564
-2.3 0.0 0.0 0.0 0.0 1
1 354 LS TRF1 2.40 1 0.9518
-2.3 0.0 0.0 0.0 0.0 1
1 355 HS TR11 2.40 1 0.9560
-2.3 0.0 0.0 0.0 0.0 1
1 356 BS TR22 2.40 1 0.9559
-2.3 0.0 0.0 0.0 0.0 1
1 357 LC 1 0.48 1 0.9258
-5.9 0.0 0.0 0.0 0.0 1
1 1
358 LC 2 0.48 1 0.9051
-6.7 0.0 0.0 0.0 0.0 1
1 359 LS TRF1 2.40 1 0.9598 0.0 0.0 0.0 0.0 0.0 1
1 360 1A 0.48 1 0.9240
-6.0 0.0 0.0 0.0 0.0 1
1 361 1C 0.48 1 0.9180
-6.1 0.0 0.0 0.0 0.0 1
1
]
362 IF 0.48 1 0.9249
-5.9 0.0 0.0 0.0 0.0 1
1 3
363 1D 0.48 1 0.9249
-5.9 0.0 0.0 0.0 0.0 1
1 364 1E 0.48 1 0.9249
-5.9 0.0 0.0 0.0 0.0 1
1 365 1P 0.48 1 0.9223
-6.0 0.0 0.0 0.0 0.0 1
1
/
370 2A 0.48 1 0.9022
-6.8 0.1 0.0 0.0 0.0 1
1 371 2P 0.48 1 0.8962
-6.9 0.0 0.0 0.0 0.0 1
1
.l 372 2B 0.48 1 0.9017
-6.8 0.0 0.0 0.0 0.0 1
1 373 2F 0.48 1 0.9041
-6.7 0.0 0.0 0.0 0.0 1
1 374 2C 0.48 1 0.9005
-6.8 0.0 0.0 0.0 0.0 1
1 375 2D 0.48 1 0.9011
-6.8 0.0 0.0 0.0 0.0 1
1 l
376 2E 0.48 1 0.9040
-6.7 0.0 0.0 0.0 0.0 1
1 400 RTP1 2.40 1 0.9564
-2.3 0.0 0.0 0.0 0.0 1
1 401 RTP2 2.40 1 0.9564
-2.3 0.0 0.0 0.0 0.0 1
1 402 RCP1 2.40 1 0.9564
-2.3 0.0 0.0 0.0 0.0 1
1 403 RCP2 2.40 1 0.9564
-2.3 0.0 0.0 0.0 0.0 1
1 404 C05tD1 0.48 1 0.9186
-6.2 0.1 0.1 0.0 0.0 1
1 j
405 CIRC 1 0.48 1 0.9101
-6.5 0.1 0.1 0.0 0.0 1
1 1
406 COND2 0.48 1 0.8980
-6.9 0.1 0.1 0.0 0.0 1
1 407 CIRC 2 0.48 1 0.8875
-7.3 0.1 0.1 0.0 0.0 1
1 800 FULPIT1 0.48 1 0.9116
-5.4 0.0 0.0 0.0 0.0 1
1 801 REASHT1 0.48 1 0.9240
-6.0 0.0 0.0 0.0 0.0 1
1 802 CLNUPP O.48 1 0.9011
-4.9 0.0 0.0 0.0 0.0 1
1 803 REAWTR1 0.48 1 0.9145
-6.0 0.0 0.0 0.0 0.0 1
1 804 CROD1 0.48 1 0.9159
-6.0 0.0 0.0 0.0 0.0 1
1 805 FULPIT2 0.48 1 0.8915
-6.2 0.0 0.0 0.0 0.0 1
1 806 REASHT2 0.48 1 0.9022
-6.8 0.0 0.0 0.0 0.0 1
1 j
807 REAWTR2 0.48 1 0.9022
-6.8 0.0 0.0 0.0 0.0 1
1 808 CROD2 0.48 1 0.8938
-6.8 0.0 0.0 0.0 0.0 1
1 l
i g s,, g.gtSC-volt-01HM 0
- .
- '.irec 9
1 24 n
P7I INTERACTIVE POWER SYSTEM S8MULATOR--PSS/E FRZ, FEB 26 1993 10:16-
' BIG ROCK LOCA LOADS W/0 VOLT REG (PER GJB-022191-1 REV 0)
BRANCH DATA
46 KV SYSTEM TEED 0 MIN 2 MUM VOLTAGE OF '.952PU -
-- FROM -
TO CKT NAME
_.NAME LINE R LINE X CHRGING TP ST RATA RATB RATC 1
4* 1 BG RK 7 EMHETT6 0.0183 0.2094 0.0000 1
0 0-0 1* '
352 1 BG RK 7 TRANSFR 0.0115' O.1260 0.0000 F 1 5
0 0
4 29* 1-EMMETT6 BGRK 138 0.0008 0.0201 0.0000 T 1 6
0-0
-29'-
86 i BGRK 138. SWING 0.0016 0.0180 0.0000 1
0 0
0 29*
351 1 BGRK 138 GEN -
0.0006 0.0128 0.0000 F 1 80 0
0-J 200 372* 1 FIRE-P 2B 0.8767. 0.7596 0.0000 1
0 0
0 i
201 372* 1 M07071 2B 5.6858 0.1649 0.0000 1
0 0
.0 l
202 372* 1.M07070 2B 5.6858 0.1649 0.0000 1
0 0
0 204 372* 1 N07068 2B 5.6858 0.1649 0.0000 1
0 0
0'
)
~343*
353 1 VOLTREG SWGR 24 0.0010 0.0058 0.0000 1
5 0
0 354* 1 VOLTREG LS TRF1 0.0004 0.0050 0.0000 T.
0 5
0
- h>343
~ 0
'l 343 354* 2 VOLTREG LS TRF1 0.0010 0.0058 0.0000 1
0 0
0 350 352* 1 SBLDG TRANSTR 2.5882 4.4000 0.0000 T 1 0
0 0
351*
359 1 GEN LS TRF1 0.0100 0.1190 0.0000 F 1 5
0 0
352*
354 1 TRANSTR LS TRF1 0.0010 0.0058 0.0000 1
0 0
0
]
353*
355 1 SWGR 24 HS TR11 0.0062 0.0027. 0.0000 1
0 0
0 353*
356 1 SWGR 24 HS TR22 0.0062 0.0027 0.0000 1
0 0
0 353*
400 1 SWGR 24 RTP1 0.0031 0.0014 0.0000 1
0 0
0 353*
401 1 SWGR 24 RFP2 0.0033 0.0015 0.0000 1
0 0
0 353*
402 1 SWGR 24 RCP1 0.0214 0.0114 0.0000 1
0 0
0 l
353*
403 1 SWGR 24 RCP2 0.0165 0.0095 0.0000 1
0 0
0 1
354 359* 1 LS TRF1 LS TRF1 0.0010 0.0058 0.0000 0
0 0
0 355*
357 1 HS TR11 LC 1 0.1170 1.2200 0.0000.F 1
1 0
0 356*
358 1 RS TR22 LC 2 0.1189 1.2173 0.0000 F 1 1
0 0
1 357*
360 1 Lc 1 1A 0.0360 0.0877 0.0000 1
0 0
0 357*
362 1 LC 1 IF 0.0508 0.1241 0.0000 1
0 0
0 357*
404 1 LC 1 COND1 0.1866 0.4601 0.0000 1
0 0
0 l
357*
405 1 LC 1 CIRC 1 0.3733 0.9158 0.0000 1
0 0
0 358*
370 1 LC 2 2A 0.0321 0.0781 0.0000 1
0 0
0 l
l 358*
373 1 LC 2 2F 0.0469 0.1146 0.0000 1
0 0
0 358*
406 1 LC 2 COND2 0.1823 0.4427 0.0000 1
0 0-O 358*
407 1 LC 2 CIRC 2 0.4036 0.9852 0.0000 1
0 0
0 360*
361 1 1A IC 0.6380 1.0243 0.0000 1
0 0
0 1
360*
372 1 1A 2B 0.0391 0.0998 0.0000 0
0 0
0
.j 360*
800 1 1A FULPIT1 9.0712 0.4644 0.0000 1-0 0
0 1
360*
801 1 1A REASHT1 7.5521 0.3850 0.0000 1
0 0
0 360*
802 1 1A CLNUPP 16.8403 0.3654 0.0000 1
0 0
0 360*
803 1 1A REAWTR1 1.2977 1.1632 0.0000 1
0 0
0 3
360*
804 1 1A CROD1 1.3889 1.2413. 0.0000 1
0 0
0 362*
363 1 IF ID 0.3186 0.5078 0.0000 1
0 0
0 362*
364 1 IF 1E 0.4332 0.6944 0.0000 1
0 0
0 362*
365 1 IF 1P 0.1419 0.3472 0.0000 1
0 0
0 370*
371 1 2A 2P 0.4327 0.6944 0.0000 1
0 0
0 370*
372 1 2A 2B 0.0156 0.0382 0.0000 1
0 0
0 370*
805 1 2A FULPIT2 8.2465 0.4206 0.0000 1
0 0
0 i
370*
806 1 2A REASHT2 6.7274 0.3429 0.0000 1
0 0
0 370*
807 1 2A REAWTR2 1.3108 1.1762 0.0000 1
0 0
0 370*
808 1 2A CROD2 1.4236 1.2717 0.0000 1
0 0
0 373*
374 1 2r 24 0.6988 1.1198 0.0000 1
0 0
0 373*
375 1 2F 2L 0.3850 0.6163 0.0000 1
0 0
0 373*
376 1 2F 2E 0.0117 0.0286 0.0000 1
0 0
0 g,g g, g-BSc-VOLT-ofl lo/0 l
- f. '. d.xcr.t eh _ b cl _
i
PTI INTERACTIVE POWER SYSTEM SINULATOR--PSS/E FRI, FEB 26 1993 10:16 BIG ROCK LOCA LOADS W/O VOLT REG (PER GJB-022191-1 REV 0)
TRANSFORMER DATA 46 KV SYSTEM TEED 8 MINIMUM VOLTAGE OF.952PU FROM TO CKT TP RATIO ANGLE RG CONT RMAX RMIN VMAX VMIN STEP TAB 1
352 1 F 0.9522 0.00 1 0 1.5000 0.5100 1.5000 0.5100 0.00625 4
29 1 T 1.0000 0,00 1 0 1.5000 0.5100 1.5000 0.5100 0.00625 29 351 1 F 1.0370 0.00 1 0 1.5000 0.5100 1.5000 0.5100 0.00625 343 354 1 T 1.0000 0.00 1 0 1.5000 0.5100 1.5000 0.5100 0.00625 350 352 1 T 1.0000 0.00 1 0 1.5000 0.5100 1.5000 0.5100 0.00625 351 359 1 F 0.9565 0.00 1 0 1.5000 0.5100 1.5000 0.5100 0.00625 355 357 1 F 0.9750 0.00 1 0 1.5000 0.5100 1.5000 0.5100 0.00625 356 358 1 F 0.9750 0.00 1 0 1.5000 0.5100 1.5000 0.5100 0.00625 Cotc No W h 'ALI N & b
. t :.4... vt b
S a
9 ss I
l 1
l 1
i l
1 3
l l
1
PT3 INTERACTZVE POWER SYSTEM S2MULATOR--PSS/E FRK, FEB 26 1993 10:15 BZG ROCK LOCA 8,OADS W/0 UOLT REG (PER GJB-023191-1 REV 0)
RAT 8NG 46 KV SYSTEM FEED 8 MINIMUM VOLTAGE OF.952PU SET A i
'"S 1 BG RK 7 4 6.0 AREA CET KW KVAR KVA %I 0.9264PU
-1.42 1
1 42.617KV J
4 EMMETT6 46.0 1 1 -1134.9 -1018.3 1524.8 70 352 TRANSFR 2.40 1 1 1134.9 1018.3 1524.8 33 0.9522LK BUS 4 EMMETT6 46.0 AREA CKT KW KVAR KVA %I 0.9520PU 0.00 4
GENERATION 1
1139.9 1075.2R 1567.0 16 43.792KV TO 1 BG RK 7 46.0 1 1 1139.9 1075.0 1566.9 TO 29 BGRK 138 138 1 1 0.0 0.2 0.2 0 1.0000UN BUS 29 BGRK 138 138 AREA CKT KW KVAR KVA %I 0.9520PU 0.00 29
> p n
1 131.38KV C
TO 4 EMMETT6 4 6.0 1 1 0.0
-0.2 0.2 0 1.0000LK 7
TO 86 SWING 138 1 1 0.0 0.0 0.0
, o
- i. lp To 351 GEN 13.8 1 1 0.0 0.1 0.1 0 1. 0370LK BUS 86 SWING 138 AREA CKT KW KVAR KVA %I 0.9520PU 0.00 86 s
1 131.38KV E.
TO 29 BGRK 138 138 1 1 0.0 0.0 0.0 p
BUS 200 FIRE-P 0.4 8 AREA CKT KW KVAR KVA %I 0.8888PU
-6.92 200 h
1 0.427KV
.p cp TO LOAD-PQ 85.0 53.0 100.2 TO 372 2B 0.48 1 1
-85.0
-53.0 100.2 i
BUS 201 Mo7071 0.4 8 AREA CKT KW KVAR KVA %I 0.9011PU
-6.76 201 4D 1
0.433KV r
TO LOAD-PQ 1.0 1.0 1.4 TO 372 2B 0.48 1 1
-1.0
-1.0 1.4 BUS 202 Mo7070 0.4 8 AREA CKT KW KVAR KVA %I 0.9011PU
-6.76 202 I
1 0.433KV 3 LOAD-PQ 1.0 1.0 1.4 to 372 2B 0.48 1 1
-1.0
-1.0 1.4 BUS 204 Mo7068
- 0. 4 8 AREA CKT KW KVAR KVA %I 0.9017PU
-6.79 204 1
0.433KV TO 372 2B 0.48 1 1 0.0 0.0 0.0 BUS 343 VOLTREG 2.40 AREA CKT KW KVAR KVA %I 0.9571PU
-2.30 343 1
2.297KV TO 353 SWGR 24 2.40 1 1 1110.8 974.7 1477.8 31 TO 354 LS TRF1 2.40 1 2 -1110.8
-974.6 1477 8 BUS 350 SBLDG 0.4 8 AREA CKT KW KVAR KVA %I 0.9483PU
-2.64 350 1
0.455KV TO SHUNT 20.7 9.9 22.9 j
TO 352 TRANSFR 2.40 1 1
-20.7
-9.9 22.9 48 1.0000UN BUS 351 GEN 13.8 AREA CKT KW KVAR KVA %I 0.9180PU 0.00 351 1
12.669KV TO 29 BGRK 138 138 1 1 0.0
-0.1 0.1 0 1. 0370UN TO 359 LS TRF1 2.40 1 1 0.0 0.0 0.0 0 0.9565LK BUS 352 TRANSFR 2.40 AREA CKT KW KVAR KVA %I 0.9585PU
-2.23 352 1
2.301KV TO 1 BG RK 7 46.0 1 1 -1132.1
-987.3 1502.2 31 0. 9522UN TO 350 SBLDG 0.48 1 1 20.8 10.1 23.2 48 1.0000LK TO 354 LS TRF1 2.40 1 1 1111.3 977.2 1479.9 BUS 353 SWGR 24 2.40 AREA CKT KW KVAR KVA %I 0.9564PU
-2.33 353 1
2.295KV i
J 343 VOLTREG 2.40 1 1
-1110.6 -973.3 1476.7 31 to 355 HS TR11 2.40 1 1 501.1 406.3 645.1 TO 356 RS TR22 2.40 1 1 608.7 567. 9 832.5 To 400 RFP1 2.40 1 1 0.0 0.0 0.0 TO-401 RFP2 2.40 1 1 0.0 0.0 0.0 TO 402 RCP1 2.40 1 1 0.0 0.0 0.0 t
e 9
'T@
-403lDCF2
'2.40 1: ' 1 0.0 0.0
'0.0.
1 l
-MISMATCE-0.8
-0.9' 1.2 1
'i
-30s-
.KW KVAR KVA %I 0.9578PU
-2.26 354
=i 1
2.299KV I
1 343 VOLTREG 2.40 - 1 2 1111.1' 916.0 1478.8 J
352 TRANSTR 2.40 1 1
--1111.1
-975.8 1478.8 3
1i i
Ck no BA-kk-Y0q;en fup n =+=e-r _
C,
~
i n
5 a
/
-a a
5 F
i t
Jr
)
.i 4
e 3
1 i
l:;
i
'!:i t'
-i 1
5 r
r.
r-,
=
PTI INTERACTIVE POWER SYSTEM SZMULATOR--PSS/E FRZ. FEB 36 1993 10:15 B2G RCtK LOCA LOADS W/0. VOLT REG (PER GJB-033191-1 REV 0)
RAT 8NG 46 KV SYSTEM FEED 8 M2NIMUM VOLTAGE OF.953PU SET A QUS 355 HS TR11 2.40 AREA CKT KW KVAR KVA %I 0.9560PU
-2.32 355 1
2.294KV O
353 SWGR 24 2.40 1 1
-500.8
-406.1 644.8 TO 357 LC 1 0.48 1 1 500.9 406.2 644.9 90 0.9750LK BUS 356 HS TR22 2.40 AREA CKT KW KVAR KVA %I 0.9559PU
-7.32 356 1
2.294KV TO 353 SWGR 24 2.40 1 1
-608.2
-567.7 832.0 TO 358 LC 2 0.48 1 1 608.3 567.7 8'2.1 116 0.9750LI BUS 357 LC 1 0.4 8 AREA CKT KW KVAE.
KVA %I 0.9258PU 5.88 357 1
0.444KV TO 355 HS TR11 2.40 1 1
-495.9
-353.4 608.9 88 0.9750UN TO 360 1A 0.48 1 1 164.4 117.7 202.2 TO 362 IF 0.48 1 1 60.7 43.1 74.4 TO 404 COND1 0.48 1 1 129.5 91.3 158.5 TO 405 CIRC 1 0.48 1 1 141.3 101.2 173.8 BUS 358 LC 2 0.4 8 AREA CKT KW KVAR KVA %I 0.9051PU
-6.67 358 1
0.434KV TO 356 HS TR22 2.40 1 1
-599.7
-480.0 768.2 113 0.97500N TO 370 2A 0.48 1 1 280.6 219.2 356.1 s
3-TO 373 2F 0.48 1 1 68.2 55.0 87.6 ut h i TO 406 COND2 0.48 1 1 119.5 97.3 154.1
~
- 1. '
TO 407 CIRC 2 0.48 1 1 131.4 108.5 170.4 sZ
<r- 0~ [,
BUS 359 IS TRF1 2.40 AREA CKT KW KVAR KVA %I 0.9598PU 0.00 359 t
1 2.303KV TO 351 GEN 13.8 1 1 0.0 0.0 0.0 0 0.9565UN o,
fT
(}' g BUS 360 1A
- 0. 4 8 AREA CKT KW KVAR KVA %I 0.9240PU
-5.95 360 1
0.444KV g
'O LOAD-PQ 18.0 12.0 21.6 ay f0 SHUNT 6.8 5.1 8.5 o
TO 357 LC 1 0.48 1 1
-164.2
-117.3 201.8 j3 TO 361 1C 0.48 1 1 40.0 29.6 49.7
'e' 3E TO 800 FULPIT1 0.48 1 1 12.2 9.0 15.2 i
i TO 801 REASHT1 0.48 1 1 0.0 0.0 0.0 TO 802 CLNUPP 0.48 1 1 12.5 9.0 15.4 TO 803 REAWTR1 0.48 1 1 41.4 29.4 50.7 TO 804 CROD1 0.48 1 1 33.3 23.2 40.6 BUS 361 1C 0.4 8 AREA CKT KW KVAR KVA %I 0.9180PU
-6.10 361 1
0.441KV TO LOAD-PQ 28.0 20.0 34.4 TO SHUNT 11.8 9.3 15.0 TO 360 1A 0.48 1 1
-39.8
-29.3 49.4 BUS 362 1r
- 0. 4 8 AREA CKT KW KVAR KVA %I 0.924SPD
-5.92 362 1
0.444KV i
TO 357 LC 1 0.48 1 1
-60.6
-43.0 74.3 j
TO 363 1D 0.48 1 1 0.0 0.0 0.0 TO 364 1E 0.48 1 1 0.0 0.0 0.0
)
TO 365 1P 0.48 1 1 60.6 43.0 74.3 BUS 363 ID
- 0. 4 8 AREA CKT KW KVAR KVA %I 0.9249PU
-5.92 363 1
0.444KV TO 362 IF 0.48 1 1 0.0 0.0 0.0 BUS 364 IE 0.4 8 AREA CKT KW KVAR KVA %I 0.9249PU
-5.92 364 1
0.444KV
'O 362 IF 0.48 1 1 0.0 0.0 0.0 JS 365 1P 0.4 8 AREA CKT KW KVAR KVA %I 0.9223PU
-6.02 365 1
0.443KV TO LOAD-PQ 18.0 13.0 22.2 TO SHUNT 42.5 29.8 51.9 TO 362 1F 0.48 1 1
-60.5
-42.8 74.1 1
l
PTI INTERACTIVE POWER SYSTEM SINULATOR--PSS/E FRI, FEB 26 1993 10:15 SIG ROCK LOCA LOADS W/0 VOLT RIG (PER GJB-022191-1 REV 0)
RATING 46 KV SYSTEM FEED 8 MINIMUM VOLTAGE OF.952PU SET A CUS 370 2A 0.48 AREA CKT KW KVAR KVA %I 0.9022PU
-6.77 370 1
0.433KV 3 LOAD-PQ 52.0 44.0 68.1 TO SHUNT 25.2 21.2 32.9 TO 358 LC 2 0.48 1 1
-280.1
-218.0 355.0 TO 371 2P 0.48 1 1 52.7 45.7 69.8 TO 372 2B 0.48 1 1 108.7 70.9 129.7 TO 805 FULPIT2 0.48 1 1 11.2 10.0 15.0 TO-806 REASRT2 0.48 1 1 0.0 0.0 0.0 TO 807 REAWTR2 0.48 1 1 0.0 0.0 0.0 TO 808 CROD2 0.48 1 1 30.3 26.3 40.1 BUS 371 2P 0.48 AREA CKT KW KVAR KVA %I 0.8962PU
-6.89 371 1
0.430KV TO LOAD-PQ 30.0 26.0 39.7 TO SHUNT 22.5 19.3 29.6
.q El
?-
TO 370 2A 0.48 1 1
-52.5
-45.3 69.3 1
BUS 372 2B 0.48 AREA CKT KW KVAR KVA %I 0.9017PU
-6.79 372
) h 1
0.433KV
~.
g I
TO LOAD-PQ 1.0 1.0 1.4 y
TO SEUNT 19.5 13.8 23.9
.A TO 200 FIRE-P 0.48 1 1 86.1 54.0 101.6
?
p TO 201 MO7071 0.48 1 1 1.0 1.0 1.4 TO 202 MO7070 0.48 1 1 1.0 1.0 1.4 p f TO 204 MO7068 0.48 1 1 0.0 0.0 0.0 g
J TO 370 2A 0.48 1 1
-108.6
-70.8 129.7 i
BUS 373 2F 0.4 8 AREA CKT KW KVAA KVA %I 0.9041PU
-6.71 373 1
0.434KV
{
TO 358 LC 2 0.48 1 1
-68.1
-54.9 87.5 TO 374 2C 0.48 1 1 20.1 16.1 25.7 O
375 2D 0.48 1 1 30.1 24.1 38.5 to 376 2E 0.48 1 1 18.0 14.7 23.2 BUS 374 2C 0.48 AREA CKT KW KVAR KVA %I 0.9005PU
-6.78 374 1
0.432KV TO IDAD-PQ 20.0 16.0 25.6 TO 373 2F 0.48 1 1
-20.0
-16.0 25.6 BUS 375 2D O.48 AREA CKT KW KVAR KVA %I 0.9011PD
-6.77 375 1
0.433KV TO LCAD-PQ 30.0 24.0 38.4 TO 373 2F 0.48 1 1
-30.0
-24.0 38.4 BUS 376 2E 0.48 AREA CKT KW KVAR KVA %I 0.9040PU
-6.71 376 1
0.434KV TO SEUNT 18.0 14.7 23.2 TO 373 2r C.48 1 1
-18.0
-14.7 23.2 BUS 400 RTP1 2.40 AREA CKT KW KVAR KVA %I 0.9564PU
-2.33 400 1
2.295KV TO 353 SWGR 24 2.40 1 1 0.0 0.0 0.0 BUS 401 RFP2 2.40 AREA CKT KW KVAR KVA %I 0.9564PU
-2.33 401 1
2.295KV TO 353 SWGR 24 2.40 1 1 0.0 0.0 0.0 BUS 402 RCP1
- 2. 40 AREA CKT KW KVAR KVA %I 0.9564PU
-2.33 402 1
2.295KV TO 353 SWGR 24 2.40 1 1 0.0 0.0 0.0 3
403 RCP2 2.40 AREA CKT KW KVAA KVA %I 0.95C4PU
-2.33 403 1
2.295KV TO 353 SWGR 24 2.40 1 1 0.0 0.0 0.0 BUS 404 COND1
- 0. 4 8 AREA CKT KW KVAR KVA %I 0.9186PU
-S.17 404 1
0.441KV
T3 LCAD-PQ 129.0 90.0 157.3 T3 357 I4 1 0.48
-1 1
-129.0
-90.0 157.3 l'
l EUS 405 CIRC 1 0.48 AREA CKT KW KVAR KVA %I 0.9101PU
-6.51 405 l
1 0.437KV O LOAD-PQ 140.0 98.0 170.9 O
357 LC 1 0.48 1 1
-140.0
-98.0 170.9 1
r coh s, EA-9g.gg gg gg l
.'? -- %,
C, of.
9 f,
Sh _.
8 4
5 I
.l 1
I i
i j..
1 PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TRI, FEB 261993 10:15 BIG ROCK LCCA LOADS W/0 VOLT REG (PER GJB-022191-1 REV 0)
RATING j
46 KV SYSTEM FEED 9 MINIMUM VOLTAGE OF.952PU SET A EUS 406 COND2
- 0. 48 AREA CKT KW KVAR KVA %I 0.8980PU
-6.92 406 1
0.431KV f0 LOAD-PQ 119.0 96.0 152.9 TO 358 LC 2 0.48 1 1
-119.0
-96.0 152.9 CUS 407 CIRC 2 0.48 AREA CKT KW KVAR KVA %I 0.8875PU
-7.28 407 1
0.426KV To LOAD-PQ 130.0 105.0 167.1 TO 358 LC 2 0.48 1 1
-130.0
-105.0 167.1 BUS 800 FULPIT1 0.48 AREA CKT KW KVAR KVA %I 0.9116PU
-5.43 800 1
0.438KV TO LOAD-PQ 12.0 9.0 15.0 TO 360 1A 0.48 1 1
-12.0
-9.0 15.0 BUS 801 REASHT1 0.48 AREA CKT FW KVAR KVA %I 0.9240PU
-5.95 801 1
0.444KV TO 360 1A 0.48 1 1 0.0 0.0 0.0 BUS 802 CLNUPP 0.48 AREA CKT KW KVAR KVA %I 0.9011PU
-4.94 802 i
1 0.433KV TO LOAD-PQ 12.0 9.0 15.0 TO 360 1A 0.48 1 1
-12.0
-9.0 15.0 BUS 803 REAWTR1 0.4 8 AREA CKT KW KVAR KVA %I 0. 9145PU
-6.02 803 1
0.439KV TO LOAD-PQ 41.0 29.0 50.2 TO 360 1A 0.48 1 1
-41.0
-29.0 50.2 BUS 804 CROD1
- 0. 4 8 AREA CKT KW KVAR KVA %I 0.9159PU
-6.01 804 1
0.440KV To LOAD-PQ 33.0-23.0 40.2 TO 360 1A 0.48 1 1
-33.0
-23.0 40.2 BUS 805 FULPIT2 0.4 8 AREA CKT KW KVAR KVA SI 0.8915PU
-6.22 805 1
0.428KV TO LOAD-PQ 11.0 10.0 14.9
)
TO 370 2A 0.48 1 1
-11.0
-10.0 14.9 i
i BUS 806 REASHT2 0.48 AREA CKT KW KVAR KVA %I 0.9022PU
-6.77 806 1
0.433KV TO 370 2A 0.48 1 1 0.0 0.0 0.0
\\
i BUS 807 REAWTR2 0.48 AREA CKT KW KVAR KVA %I 0.9022PU -6.77 807 1
0.433KV TO 370 2A 0.48 1 1 0.0 0.0 0.0 BUS 808 CROD2 0.4 8 AREA CKT KW KVAR KVA %I 0.8938PU
-6.78 808 1
0.429KV TO LOAD-PQ 30.0 26.0 39.7 To 370 2A 0.48 1 1
-30.0
-26.0 39.7 Calc No M-#480-VAT'#11/4/b A:w hr:-t b
Eh
__ OI
1 TO % MV SYSTEM TO 138 KV SYSTEM m.
.. m d..a Wx Tn.
y z-o.a r-E'
.. w*
i j
if
..m
..<m xg
..t -
_r.
4 7
..m.
i ex o
(()
r
- e..
kI s.eped l,i t il l
7i i
xx tm
.o Ei i.
BIG ROCK POINT o
m
- e e-m 3
s4 3-,
g Q
4 4
s
.4 7
7
-t.
m O
..,,s,.
Ak Ak w
.. m
,s.
.. m
_St_.
- 2_7, g
E_2_
27 j,,*.
3 h
=
.. m
. 91e -
s.t cm
'A D.
so. g Si
- 9 m
17.
.. w, e.v.a
--7
- q p
T T. 9n.
di II dd T
3d 3;
32 3C e.
si it' dd
~4 d
3i-d-
a ms a
.. m
,,i
_ua t'
.. m wi l
m
..m-m-
.. m m
i m
.. we mi
.. m.
sa m
m w
..m Q
BIG ROCK LOCA LOADS W/O VOLT REG -(PER GJB-022191-1 REV 0) 8US - VOLTAGEIPul-46 KV SYSTEM FEED _e MINIMUM VOLTAGE OF 952 BHRNCH - KW/KVAR C loca -495f ou PU05-cdSh)
EQUIPMENT - MW/KVAR ih-TUE, APR 13 1993 15:19-
- a
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EQUIPMENT MH/KVAR
1 CALCULATION 1)
STATION POWER EQUIPMENT VOLTAGE LIMITS Maximum and minimum voltage limits for 2400, 480 and 120 V equipment are as follows.
Description Max V Min V 2400 V Bus (2400 V base) 1.054 0.89 (110% of 2300 V motors)
(2nd level UV relay DO) 480 V Buses 1A & 2A 1.008 0.9 (480 V base)
(110% of 440 V motors)-
(I & C power supplies, battery charger limits)
Other 480 V buses 1.008 0.863 (480 V base)
(110% of 440 V motors)
(90% of 460 V motors)
AC Contactors (480 V base) 0.833 (Max PU per test) i i
Bus limits 2400 V Bus:
Max voltage limit due to 110% of 2300 V motors.
l Min voltage limit due to 2nd level UV relay dropout setting of 0.89 per unit with a 10 second delay.
480 V Buses IA & 2A:
Max voltage limit due to assumption of 440 V motors (110%).
Min voltage limit due to I & C power supply ES8512A/B, 105 V =.875 (limit)
+.0264 (Vdrop) ~
.901 (8 Bus 1A, 480 V base, Attachment C).
Min voltage also due to battery charger rated at 0.9 pu (480 V base - Bus 2A, Reference 8).
Other 480 V buses:
Max voltage limit due to 110 % of 440 V motors (assumed).
Min voltage limit due to 90% of 460 V motors (assumed).
480 V AC Contactors:
Maximum pickup voltage limit 0.833 pu per 1982 tests (Reference 9).
Equipment limits 440 V motors 1.008 - 0.825, (480 V base) i 460 V motors 1.054 - 0.863, (480 V base) 2300 V motors 1.054 - 0.863, (2400 V base) j 480 V battery chargers 1.10 - 0.9 (MCC 2A), (480 V base) 480 V AC contactors 0.833 max pickup V per tests, (480 V base) 2400 V UV relay 0.89 Do, 0.91 PU, 10 second delay, (2400 V base) 120 V I & C supplies 0.901, (480 V base)
Equipment limits (2400 V and 480 V) are graphed in Figure 1.
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