ML20052A849

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Forwards Comments on NRC Draft Evaluation for SEP Topic VIII-2, Onsite Emergency Power Sys - Diesel Generator
ML20052A849
Person / Time
Site: Big Rock Point File:Consumers Energy icon.png
Issue date: 04/21/1982
From: Vincent R
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: Crutchfield D
Office of Nuclear Reactor Regulation
References
TASK-08-02, TASK-8-2, TASK-RR NUDOCS 8204290268
Download: ML20052A849 (33)
v • d • e


Text

_ _ _ _ _. _ _ _ _ _ _ _ _ _. _. _ _ _ _ _ _

Consumem Power Company General of fices: 1945 West Parnall Road. Jackson, MI 49201

  • 1517) 788 0550 April 21, 1982 CO O>

Y S

Q RECEgygg 4

l Dennis M Crutchfield, Chief I

08819gg h Operating Reactors Branch No 5 S' g Qwar% 12 Nuclear Reactor Regulation Fac US Nuclear Regulatory Commission q

Washington, DC 20555 G)

N DOCKET 50-155 - LICENSE DPR BIG ROCK POINT PLANT - SEP TOPIC VIII-2, ONSITE EMERGENCY POWER SYSTEMS - DIESEL GENERATOR By letter dated August 20, 1980, the NRC issued a draft evaluation for SEP Topic VIII-2 (Onsite Emergency Power Systems - Diesel Generator) for the Big Rock Point Plant. Attached are the Consumers Power Company comments on that document.

f l-[T h

Robert A Vincent Staff Licensing Engineer CC Administrator, Region III, USNRC hTC Resident Inspector-Big Rock Point 4 pages Ot si A y oc0482-0021a142 820420D%fk o

SEP TOPIC VIII-2 ONSITE EMERGENCY P0ktR SYSTEMS - DIESEL GENERATOR BIG ROCK POINT PLANT l

i nu0482-0021c142 1

1 TONR 12-82 Enclosure Review of SEP Topic VIII-2 "Onsite Emergency Power Systems - Diesel Generator" A.

SUMMARY

OF NRC EVALUATION The objective of the NRC evaluation was to determine if the onsite ac generator has sufficient capacity and capability to supply the required automatic safety loads during anticipated occurrences and/or in the event of postulated accidents after loss of offsite power.

As current licensing criteria, the NRC has cited Regulatory Guide 1.9

" Selection of Diesel Generator Set Capacity for Standby Power Supplies,"

Branch Technical Position (BTP) ICSB 17 " Diesel Generator Protective Trip Circuit Bypasses," and Regulatory Guide 1.108 " Periodic Testing of Diesel Generator Units Used as Onsite Electrical Power Systems at Nuclear Power Plants."

As summarized in the NRC evaluation, the NRC concludes the following:

1.

The bypass of diesel generator protective trips is in compliance with current licensing criteria.

2.

The diesel generator loading meets the current licensing requirements except that a frequency decrease to 91% of nominal frequency occurs when starting the electric fire pump. The minimum allowable decrease, as defined in Paragraph C.4 of Regulatory Guide 1.9, is 95%.

3.

Diesel generator testing, as specified by plant Technical Speci-fications, does not meet current licensing criteria.

B.

CORRECTIONS TO THE NRC EVALUATION The following list summarizes the required corrections to the NRC evaluation:

C.1 Page 7, Paragraph 2, Line 3, states that after approximately 10 minutes, the load will drop to 150.3 kVA. Attachment 1 is the emergency diesel generator (EDG) load profile for the 3.53 ft LOCA 2

which was forwarded by Consumers Power Company (Reference 1) and used by the NRC to conduct its evaluation. As shown, the load drops to 150.3 kVA after approximately 75 seconds.

C.2 Page 7, Paragraph 2, Line 4, states that procedures require that the operator strip all loads from Buses IA and 2A before connecting these buses to the EDG. This statement is incorrect. As given in Emergency Operating Procedure EMP 3.3 (Reference 2), the following procedure is taken:

C.2.1 Open Breaker 52-1A feeding power to the MCC-1A bus, nu0382-0844a-32-45

l 2

C.2.2 Open Breaker 52-2A feeding power to the MCC-2A bus.

C.2.3 Open all breakers on Bus 1A except screenhouse Bus 1C and RDS-UPS Power Supply A (52-1A-64) and B (52-1A-13).

C.2.4 Open all breakers on Bus 2A except the No 3 Air Compressor, RDS-UPS Power Supply C (52-2A-65) and D (52-2A-16).

C.2.5 Close Bus Tie Breaker 2A-2B.

C.2.6 Switch Channel I reactor protection channel to alternate power (S6 Switch).

C.2.7 Connect hose from the Well Water System to No 3 Air Compressor and valve into service.

C.2.8 Go to screenhouse and open all breakers except:

a.

Canal Sample Pump b.

Well House C.2.9 Close the IA-2B bus tie.

It should be noted that discussion with Plant personnel has revealed that the 1A and 2A loads (as described above in Steps C.2.3, C.2.4 and C.2.8) are left connected to the Plant buses to ensure that these loads are energized as soon as possible. This procedure ensures better load control during the Plant response to a loss of offsite power during an accident condition.

C.3 Page 8, Paragraph 1, Line 6, states that the minimum voltage during the transient was 441 V.

Upon reexamination of the voltage traces that served as the basis for the Consumers Power Company statement in Reference 3 that the minimum voltage during the transient was 441 V, it was observed that this statement was incorrect.

Re-examination of the voltage trace, which is plotted in Attachment 2, reveals that the minimum voltage during the transient war. 446 V.

C.4 Page 8, Paragraph 1, Line 8, indicates that the maximum value of frequency during the transient was 61.8 Hz and that the transient occurred over a 1.3 second period. As shown in Attachment 2, the maximum value of frequency during the transient was actually 62.2 Hz and the duration of the transient was approximately two seconds.

This actual maximum frequency and approximate transient duration was reflected in data transmitted to the NRC by Consumers Power Company on 10/16/79 (Reference 3).

C.5 Page 8, Paragraph 2, should also indicate that Regulatory Guide Paragraph C.4 states:

"A larger decrease in voltage and frequency may be justified for a diesel generator that carries only one large connected load."

(For further detail, refer to Comment C.7.)

nu0382-0844a-32-32 n,

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3 C.6 Page 8, Paragraph 3, Line 6, indicates that the EDG rating of 200 kW at 0.80 power factor (or 250 kVA) is a "2000-hour" rating. A review of Plant records indicates that the 200 kW at 0.80 power factor rating is a " full load" rating. No record which describes the EDG rating as a "2000-hour" rating could be'found in the' records search.

Line 6 of this paragraph cites " Report on Evaluation of Adequacy of Emergency Core Cooling System" attached to letter from R B Sewell to S J Chilk dated 2/27/76 as the reference for this "2000-hour" rating. A review of the report indicates that a "2000-hour"' rating is not mentioned.

C.7 Page 8, Paragraph 3, last sentence, indicates that since the frequency decrease encountered when starting the electric fire pump is less than 95% of nominal frequency (as reauired by Paragraph C.4 of NRC Regulatory Guide 1.9), the frequency is not in compliance with current licensing criteria. The NRC evaluation, however,_

failed to report that Paragraph C.4 of Regulatory Guide 1.9 goes on to say:

"A larger decrease in voltage and frequency may be justi-fled for a diesel generator unit that carries only one large connected load." Regarding the definition of a large load, it should be noted that NEMA MG-1, " Motors and Generators," Part 20, "Large Apparatus - Induction Motors," June 1981, considers large apparatus to be 100 hp or greater.

At Big Rock Point, only one emergency diesel generator load is considered as large apparatus according to the NEMA MG-1, Part 20, definition; the electric fire pump. The electric fire pump is a squirrel cage induction motor rated at 100 hp (see Attachment 3 for horsepower rating).

As reported in letter from D A Bixel to D L Ziemann, " Big Rock Point Plant - Additional Information Relative to SEP Topic VIII-1, Onsite 2

Emergency Power Systems - Diesel Generators" dated August 28, 1979, the maximum step load that the EDG must assume is 166.1 kVA. As described in the letter, this maximum load consists of that itemized in Column 1 of the table below. Columns 2 and 3 of the table show EDG starting load by assuming motor starting kVA to be 2.5 and 8 times the full load kVA (see Reference 4 for the source of this assumption). These assumptions have been made since motor starting current, as specified by the manufacturer, was not provided.

nu0382-0844a-32-32

4 Column 2 Column 3 Column 1 Starting kVA Starting kVA Load Full Load kVA (2.5 x Full Load kVA)* (8 x Full' Load kVA)*

Fire Pump.

108 270*

864*

Core Spray Valves 5.8 14.5*

46.4*

Lighting 14 14 14 G1snd Seal'Exhauster 4

I&C Transformer 24.3 24.3 24.3 Air Locks 10 10***

10***

Total 166.1 332.8 958.7

  • For motor loads, the starting kVA is assumed to be 2.5 and 8 times the full load kVA (see Reference 4 for the source of this assumption).
    • The gland seal exhauster does not automatically restart after power is-restored to the 2B bus by the diesel generator. Manual operator action is required to restart the exhauster (see CP Co Drawing 0740G3 0108, Rev E)

(Attachment 4).

l

      • Air lock door operation will not automatically resume (ie, the 5 hp hydraulic pump motors will not automatically restart) after power is restored to the 2B bus by the diesel generator. Manual action is required to resume door operation (see Drawings 3159-CI-43-6, Rev 5, and 3159-C1-62, Rev 6, and attached Chicago Bridge & Iron Company explanations in ).

Therefore, no motor starting currents are expected upon restoration of power.

10 kVA (as shown'in the table above and in ) conservatively represents control circuit loading.

The largest step load imposed on the EDG during surveillance testing-at Big Rock Point is that of the fire pump alone. Attachment 2 shows the EDG output voltage and frequency transients which result immediately after the EDG is loaded with the fire pump. Although EDG output voltage and frequency trensient data is not available to describe generator output characteristics when it assumes the reported maximum step load of 166.1 kVA (or for that matter, the loads that automatically start after the 2B bus is re-energized by the EDG; ie, the fire pump, the core spray valves, the lighting, the transformer and airlock controls), the data in Attachment 2, which plots EDG response as a result of assuming the electric fire pump load only, can be used as an approximation. As shown in Column 2 of the above table, the fire pump alone comprises at least (270/332.8)100 = 81% of the step load during the initial starting of that load. This percentage is conservative, however, since it assumes that the starting kVA is only 2.5 times that of the full load kVA, and starting kVA can be considerably higher.

If the starting kVA is assumed to be 8 times that of the full load kVA, the fire pump alone would comprise (864/958.7)100 = 90% of the step load.

Based on the data available and on the fact that the fire nu0382-0844a-32-32

5 pump alone represents at 1 cast 81% (and perhaps as much as 90%) of the total step load imposed on the diesel generator at the onset of a LOCA, it is assumed that the transients presented in Attachment 2 approximate those transients that would occur when the EDG assumes the operating loads as listed in either Column 2 or Column 3 of the preceding table (ie, the fire pump, core spray valves, lighting, transformer and airlock controls).

As shown in Attachment 2, the frequency drops to a minimum of 54.5 Hz at approximately 0.72 seconds after the fire pump starts.

Also shown, is that the frequency remains below the minimum Regulatory Guide 1.9, Paragraph C.4, limit of 95% for only 1.53 -

0.88 = 0.65 second. After this 0.65-second period, the frequency continues its ascension into (and remains within) the Regulatory Guide limits of 60 Hz 5%.

Although the frequency drops below the Regulatory Guide's lower limit, it is the opinion of Consumers Power Company that its effect on the equipment that automatically starts upon re-energizing the 2B bus with the EDG is insignificant.

Regarding the lighting loads, this brief frequency drop will have no significant effect. The same is true for the I&C transformer loads of which I&C power supplies ES8512A and ES8512B are examples.

ES8512A and ES8512B are typical power supplies for I&C mcasurement loops that are supplied by the transformer (see CP Co Drawing 0740G30114, Sh 2, Rev 2, Scheme 8512, Attachment 6).

shows these supplies to be Rosemount SPS-2102-P.

As shown in Rosemount Catalog 50000C (see Attachment 7), the rated frequency for Rosemount power supplies (including Model SPS-2102-P) is 50-400 Hz.

Regarding the transient effect on the fire pump motor, it should be noted that the test which was conducted to generate the data plotted in Attachment 2 is conducted at an interval of every three (3) days.

Therefore, the motor's ability to adequately start and accelerate the pump to running speed with diesel generator output transients similar to that shown in Attachment 2 has been proven frequently in the past. According to Plant personnel, the fire pump has never failed to start and reach running speed during such tests.

Regarding the core spray valves, it should be noted that the valve motors will experience an increase in torque for a short duration when the motors' input voltage is greater than normal and the motors' input frequency is less than normal. This occurs primarily during the period of time from 0.88 second after the valve motors are energized to 1.53 seconds after the motors are energized.

(It should be noted that motor torque varies directly as the square of the voltage and varies inversely as the square of the frequency.)

Although an increased torque is electrically imposed on the valves' motors for a very short duration, the torque switches will not open to temporarily terminate valve opening travel since torque switch operation is a function valve mechanical load and no significant change in that load should occur.

nu0382-0844a-32-32

6 Finally, the frequency transient will have no significant effect on the air lock control circuits. As in the case with the fire pump, the air locks are subjected to such transients approximately every three days during surveillance testing. The ability of the control circuits to sustain such transients and operate as designed there-after has been proven frequently in the past.

As described in the subject SEP Topic, the voltage decrease does not exceed 75% of nominal voltage and, therefore, conforms to current licensing criteria.

C.8 Page 11, Item (1)(f), should be changed from "not addressed" to "not applicable." There are presently no provisions to synchronize the EDG with the offsite supply, nor are such provisions required at Big Rock Point.

C.9 Page 11, Item (1)(g), should be changed from "not addressed" to "not applicable." Switching from one fuel oil supply to another to meet a 7-day storage requirement is not part of the operating procedure at Big Rock Point. A new EDG fuel oil storage tank (T83), with a capacity of 5,000 gallons, has been recently installed to provide 10 days of continuous EDG operation. The " Bases" section of Technical Specification 11.3.5.3, " Emergency Power Sources," states on Page 149 that "The diesel fuel oil tank is sized for 10-day full-load operation. Three-day supply is considered adequate to provide fuel makeup." Tank T83 is shown in CP Co Drawing 0740G40123, Rev AH, (Attachment 8).

As can be seen, T83 is piped directly into the diesel fuel oil system (including day tank) with no valves installed which could isolate T83 from the diesel.

C.10 Page 11, Item (4), states that the Technical Specifications do not address EDG testing frequency and its dependence on past EDG failure rates. Although true, it should be noted that present EDG Ioad testing during power operation (as defined in Technical Speci-fication 11.4.5.3 2(a)) is currently conducted at a frequency of approximately every three days. The three-day EDG test frequency is the maximum required in Regulatory Guide 1.108.

D.

SUMMARY

The following items serve to summarize the Consumers Power Company review of the subject SEP Topic and to state final conclusions:

D.1 The EDG output voltage decrease as shown in Attachment 2 does not exceed 75% of nominal voltage and, therefore, conforms to Regulatory Guide 1.9, Paragraph C.4.

The EDG output frequency decrease exceeds the Regulatory Guide 1.9, Paragraph C.4, recommendation of 95% of nominal frequency. As shown in Attachment 2, the frequency drops to a minimum of 91% of nominal frequency. As described in Comment C.7, Regulatory Guide 1.9, Paragraph C.4, provides for a further decrease in frequency if only one large load is connected to the EDG, as is the case during the initial EDG load assumption after LOCA at Big nu0382-0844a-32-32

7 Rock Point. Also, described in Comment C.7, is the fact that the frequency transient (as shown in Attachment 2) has no significant effect on any of the loads that make up the automatic EDG step load which is assumed at the onset of a LOCA.

D.2 A review of the EDG centrol schematic (CP Co Drawing 0740E30 869, Sh 2, Rev K Attachment 9) reveals that proposed modifications to the EDG protective trips, as described in References 5 and 6, have been completed. Therefore, the existing EDG protective trip circuitry conforms to current licensing criteria as concluded by the NRC in Reference 7.

A review of CP Co Drawing 0740E30869, Sh 2, Rev K, was necessary since the NRC evaluation and final conclusion (as docu-mented in Reference 7) were based on proposals (Referenras 5 and 6).

D.3 As described in Section 4.0 " Summary" of the SEP Topic (Page 11), EDG testing, as specified by Plant Technical Specifications, does not meet current licensing criteria. Although EDG testing does not conform to current criteria, it is the opinion of Consumers Power Company that the EDG is capable of carrying required load. The basis for this opinion is given in the paragraphs that follow.

Presently, load testing of the EDG at Big Rock Point Plant is performed each operating cycle as required by the Plant Technical Specifications (Section 11.4.5.3.A.1(a)).

This is a short interval test of at least twenty (20) minutes at a load of 180 to 200 kW.

This test is performed using a 200 kW, 3 phase resistive load bank.

Actual testing consists of loading the EDG to 100 kW for 20 minutes; recording load, voltagt. current, frequency, oil pressure and cooling water temperature parameters. The load is then increased to 190 10 kW and maintained for a period of 30 minutes. The same parameters are monitored throughout the test interval. Acceptance criteria for the full load test is 190 i 10 kW at 60 Hz i 5% for a period of not less than 20 minutes.

A test of the EDG automatic initiation sensors, which also provides verification of EDG operation, is performed at an interval of approximately every three days. During this test, the EDG is verified to automatically start, provide adequate output voltage and close in on 480 V emergency Bus 2B as a result of an undervoltage signal caused by actually de-energizing Bus 2B.

While running in an unloaded condition, EDG parameters, such as frequency (60 Hz i 2 Hz),

exciter voltags, lube oil level, fuel oil pressure, cooling water pump suction, are recorded. After the aforementioned parameters are recorded, the electric fire pump is automatically started as a result of decreasing fire system pressure, and the pump loads the EDG. Once loaded, EDG frequency (60 Hz i 2 Hz), field voltage and generator output voltage are recorded. The EDG runs loaded for a minimum of one hour. Test acceptance criteria is that the EDG starts and closes in on Bus 2B in 531.2 seconds after the Bus 2B undervoltage condition is initiated. Acceptance criteria also requires that the EDG run loaded for at least one hour.

nu0382-0844a-32-32

8 Certain one-time tests have been conducted at Big Rock Point. On the dates of 12/15/80 and 12/16/80, an EDG full-load test was success-fully completed. During the test, the EDG was started and loaded to 200 kW for a period of over 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> continuously. During the 24-hour period, vital signs of the diesel (ie, water temperature, lube oil and rpm) and the generator (ie, frequency, ac volts, ac amperes and exciter de volts) were monitored and recorded every two (2) hours. No significant deviation from its normal operating conditions were encountered throughout the 24-hour period. The test acceptance criteria (ie, the EDG shall maintain a load of 190 i 10 kW, at 60 Hz i 5%, for a period of not less than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) was met.

The preoperational testing of the EDG was performed in September of 1962. This test consisted of loading the EDG to an average load of 185 kW for four (4) hours. During the last hour of testing, a load of 340 amperes.and 225 kW was applied intermittently to the EDG for 3 to 4 minutes of every 10 minutes. The overload was handled satis-factorily.

Given the aforementioned tests, the EDG full-load rating of 250 kVA (refer to Attachment 10 for EDG specifications) and the maximum steady-state load demand of 215 kVA (see Reference 1), it is the opinion of Consumers Power Company that the EDG is capable of carrying required load.

nu0382-0844a-32-32

TONR 12-82 Enclosure References-(Page 1 of 1)

No Reference 1

Letter: D A Bixel to D L Ziemann " Big Rock Point Plant - Additional Information Relative to SEP Topic VIII-1, 'Onsite Emergency Power Systems - Diesel Generators'" dated 8/28/79 2

Emergency Operating Procedure EMP 3.3, " Loss of Reactor Coolant,"

Rev 24, Step 3.3.4, " Loss of Coolant Accident in Conjunct ion With Loss of Offsite Power" 3

Letter: D A Bixel to D L Ziemann " Big Rock Point Plant - Additional Information Relative to SEP Topic VIII-1, 'Onsite Emergency Power Systems - Diesel Generators,'" dated 10/16/79 4

" Industrial Power Systems Handbook," Donald Beeman, First Edition, McGraw-Hill Book Company, Inc, Copyright 1955, Chapter 4, Page 249 5

' Letter: D A Bixel to S J Chilk " Docket 50-155 - License DPR Big Rock Point Plant - Response to Section (3)(111) of Memorandum and Order Dated May 26, 1976," dated 7/26/77 6

Letter: D A Bixel to S J Chilk " Docket 50-155, License DPR Big-Rock Point Plant - Response to Section (3)(iii) of Memorandum and Order Dated May 26, 1976," dated 7/28/77 7

Letter: D K Davis to D A Bixel, dated 10/17/77,- attached report

" Safety Evaluation by the Office of Nuclear Rehetor Regulation Supporting a Limited ECCS Exemption for the 1978 Operating Cycle,"

Page 24 of the report nu0382-0844b-32-45

TONR 12-82 ENCIDSURE (page 1 of 1)

Refer'to Reference 1 of Enclosure pf'fg7/77 for source of this data.

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e g; y' (t) Solenoid vLive (ILo) is de-energized. t \\ g.,y... .o.. -[ (b) Tne " Locking Ping Cloring" solenoid vc1ve (IGB), ecoEes._ ~~ U,- f y,}. energi ed Lnd the locking ring starts to lock. (c) Coil of relay R3 rtiI1 remtins energized and therefore h pressure relief selenoid volve "D" also rechins energized L As soon as the locking rir.g stsrts to lock the " Interior Door Locking Fing Open" 112't switch (ILh0L) is unsctuated and one N/C contcet energize: the " Interior Door Closed" lights (L5A, L5B, L5C). I Seouence 8 ~ When the locking ring reaches the fully locked position, is the t. Interior Do6/ Locking Eing Close" limit switch (ILECL) nctucted and the following occurs sirultaneously: (a) Solenoid va'.ve (IGB).becomes de-energized., ' l' 7 (b) Coil of relcy E3 becomes de-energized, opening one N/0 l contset on h3 vnich de-energizes pressure relief solenoid "D". l (c) The " Interior Door Locked" lights (Li.A, L4B, L4C) go on. (d) Coil of relay E5 becomes de-energized and four N/0 contsets i j perform the following functions simultaneously: 1 Contact 1 - horn stops blowing. Contact 2 - de-energizes coil of relay R4 which releases i I the holding circuit. ~ L ! _.- r ~ Contact '3 ' de-energizes' the coil of rel'ay "H" which opens 3 N/O contacts (M1) and turns off the pump motor.' 4 f I~,- Contact'4 - de-energizes the direction 61Isolenoid valve (FI). I, , f, '. ]- ~ i. WC c

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  • Door Close* circuit is complete an'd the. "' F.

door is now in the fully closed end locked position. - ~, '.. r R i t e : I 5;-1 7. ~ N 5, - ':.L fi All green indicating ' lights are on and s.ll ' red indicating'. lights.,' i J.] . i 3 ' are off.' ' } ? .. '..,,. [.,.., .';;,,;.f.s;*(_,hj l.%Grgedc[ stop buttons $P51[PBElM.I PB-21) %ill'stop thii 6fer'htion '.cf. c'. .f ~ ~ ~ tho doors at a.ny point in the opening.or, closing cycle 4:If ~ the door.l...- I cparatiori vas, stopped 1.n.this manner, fit 'would. be. necessary lto depress. y-e tho 80 pen".or'"Close"qpush button to re-start'the operation,at.that point.. ? lb ~ r,iN T \\,1.$.W M,h!I.$5 AO.Y,e.I.'. I $ C d U N.3./!51" @ g/E 7 9.'I T The 'sequerice $;f.,cyc14 ;to open :or -close~ the exterior d o lD camb as 'that forithe. interior door operation, and the schematic is r_n' $j'i 'f } \\...cxact dup 11cate electricallyf.b.,,"- ^ ^.'.., 5. k

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'Toim 12-82 Enclopure [$' ! f.,,,, N 2 of 2) CHICAGO BRIDGE & IRON COMPANY f,' " ' \\ " operation of 12'-O Equipment lock" ti CFCo File No 3159-c1-29-1 p,3 :. p, k / (a) Solenoid valve (IGB) is de-anergized.O ', l E' / CoilofrelayR3isde-energized,w\\,,&.uJ,.; j (b) hich'in.. turn-de-energizes pressure relief solenoid "D".~ ~ (c) The " Interior Door Locked" lights (L4A, L4B, L4C) go on. (d) Coil of relay R5 is de-energized and: Contact 1 - stops horn bicr. ring. Contac't 2 - de-energizes relay R4 which releases the holding circuit. Contact 3 - turns off the pump motor (relay "M"). Contact.4 - de-energizes the directional solenoid valve (F1). The automatic circuit is now ccmplete;' the bridge is up, and the door is fully closed and locked. All green indicating. lights are on, and all red lights are off. l [ Emergency stop buttons (PB-1, FB-ll, PB-21) will stop the operation of the bridge or door at any point in the opening or closing cycle. If operation is stopped in this manner, it is nacassary to press "Open" cr "Close" push buttons to resume operation at that point. s u i The exterior door cycle duplicates the one described above. 9 i l I m L

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~c d SPs-2112 p u 30-40VDC I lg 1 SOMA em d IgTl GENERAL momentary short circuit protection. The line and load Regulated Plug-in DC powersupplies provide highly regulation and the ripple specifications are less stable and isolated DC vc tage for various industrial, stringent (see ordenng table) than for the enclosed medica!, laboratory, gro +nd support and other models. However, these units are especially designed applications These moders are ideally suited for for low-cost applications where a large number of industrial transducer excitation, current transmitter isolated voltages are required and where electrical applications as weil as for laboratory use. specifications are not critical. The Plug-In types are transistorized and compact, Pawer supplies are available with narrow slot range but are repairable. A mating 8-pin octal receptacle for and with wide range voltage adjustments. Any voltage conventional chassis mounting is shipped with each between 1 and 40 volts is available from at least one of unit. However, the optional screw-down socket with our standard power supplies. The table below shows molded barrier strips offers extra convenience and fast the model numbers for the most popular voltage installation. ranges between 1 and 40 volts. After determining applicable models, refer to the " Style" table on page 2 The open construction 2210 series is equally for electrical specifications. Duplications exist in some convenient in use and installation. This economical voltage ranges for your selection based on economy, unit is of solid state design, and offers automatic, current ratings or electrical specifications. VOLTAGE /MODEL TABLE VOLTAGE STYLE 1 -6.5 5-9 10 12 15 18 20 24 28 30 -40 2210 2210 2210 A sPs-ro77 sPs-?ctr ms-2078 e srS-?cis s r*,-20i o sPs-?ct s srs-roit sPs-2r21 sPs-20s5 SPL-2CN7 LP5-20'.7 W3-/C,J 5FS-M.4 SP>-4054 SPs-2101 sPS-2101 bb-2101 D sPs-2Cs2 sP5-?Os2 sPs-?C74-L sPs-2101 sPs-2f62 SPS-2063 sP5-1110 bi's-2110 SN-211C S N -2110 sPs-2111 sPs-2111 sPs-2111 SPS-2112 E sPs-2120-0 SP:,-2121 -0 'Rosemount

Torm 12-82 ORDERING INFORMATION ENCLOSURE (page 2 of 3) 2210 DC OUTPUT R ATING Hf GUL ATION (mv DC) MIPPtt OUTPUT OPEN CIRCulT cunjt,t N: UNE toad (mv RMS) ADJUST CONSTRUCTION votTs 2210-00280 es 175 310 20 to 25% 2210 00240 24 225 110 20 10

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STYLE "A" ULTRA COMPACT DC OUT PUT RAf mG HtGUL ATiON imy DC) igyp p,pptg CoE 0.6 WATT MODEL c H,L N T UNE LOAD (mvnMS) yotys PLUGIN SPS-?O77 P 9125 0-50 3 6 15 0 02 SP5 2078-P 13-16 4 40 3 6 15 0 02 STYLE "B" ECONOMICAL oc output r4TsI4o ne out ATeoN vmv oc) T E ""- niPPtt 2 WATT MODEL Ctl"'"' j, [ UNE LOAD (mv AMS) votts PLUGIN SPS 2014 P to 0 175 ?45 +9 1 0 01 SPS-2010- P 12 0-175 36

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0 03 SPS 2018-P 15 0 125 6 12 1 0 03 SPS 2011 P 24 0-90 !12 1 0 025 SPS-2021 P 7t 0-60 26 114 1 0 02S STYLE "D" 3 WATT oc output HArmo al Gut ATicN emy oci TEMP. n, ppa y o u,,a PLUG IN OR uo0tt cuas ENT j,$.[ civLt yogy, LINE Loao emy must SOLDER HEADER _ S",5'2U['[ gg,"1 MOUNTING 1-s s 0-ys0 15 5 15 0 03 3 g,g SPS-20s7-P 's 11 0 200 2 5 Os 0 02 mo'n NAnnow ADJUSTMENT SPS-20f B-P 13 17 0 '75 2 5 05 0 02 Plug-in

  1. "0 SPS 2052 P P84 to 9 11 4 200 2

5 05 0 01 SPS-20's? S go,y, g,g, SPS-2054 P 1* 21 01!o 2 5 0S 0 01 Pive in WIDE Sps.2101 P 2000 0 100 10 15 1 0 02 Plut in ADJUST ME N T nAnor SPS-2102 P '0-40 0 75 10 15 1 0 02 Pf ut en DUAt VOLT A GE SPS 20740-P f15 0 65 3 6 1 0 02 Plug-in OUTPUT STYLE "F" 4.5 WATT oc ouTPui n ATwo accut ATioN amv oc' TEMP @ WING niPPtt

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PLUG IN OR MODEL c U,H R,t,N T STf t E UNE LOAD (mv MMS) votis SOLOE R-H E ADE R "# "" 0 " 8 MOUNTING 165 15 10 15 0 03 ADJUSTUENy SPSM2 5 0W SW" M ad" AANGL spg.por,3 g .,.'l 0 000 15 to 15 0 03 f ol 'e ' H* O' 5 2 HOP 4 20 0 200 15 15 1 0 02 %n WIDE ADJUSTMENT LPS 2 11 l' 20 30 0 17' 15 1$ 1 0 02 81/7 In AANGt SPS 211? P '44-80 0tw 1% 15 1 00? Pl"'i in UUAL SPS.21/0 P '12 0175 6 10 15 00? P1.'o in VO1iAGE Otstetif SPS 2121-P 'IS 0 150 5 10 1S 0 02 81"o in 2 hnt

... ~ - GENERAL SPECIFICATIONS PRICING AND DISCOUNTS TONR 12-82 The applicable price list is P50000. All models listed OS M input Voltage on the current price list are stocked at our Nashville 105 to 125 VAC at 50-400 Hz. Attacht 7 plant. Most styles delivered from stock in quantities to (page 3 of 3) 25 pieces F.O.B., Nashville. Tennessee. Pnces and Adjustable Output specifications on all models are subject to change Voltage adjust potentiometer at the top of all power w thout notice. When ordering, specify model number a quanhty of each kn. supplies. (if range is not specified, adjustment is 15%.) Quantity discount schedule follows: Positive or negative. output can be grounded. isolated from case and AC hne. QUANTITY DISCOUNT DC isolation 1-9 Base Price Greater than 100 megohm with 200 VDC applied 10 24 Base Price Times 0 96 between output and case 25-49 Base Price Times 0.92 50-99 Base Price Times 0 88 AC isolation 100-199 Base Price Times 0.84 Typically 20 picofarad - shield between primary and secondary transformer. Line Regulation (output voltage variation as input line voltage changes from 105 to 125 VAC) See ordering table on opposite page. WARRANTY Load Regulation (output voltage variation due to a change from no load to ful! rated load current) See ordering table on opposite page. We warrant our power supplies to be free from defects in workmanship and/or material and to function satisfactorily when properly installed. Output Impedance operated and maintained in accordance with Less than 0.1 ohms (DC to 1KC). instructions and specifications for a period of 6 months. The warranty becomes ef fective on the date of Reverse Current shipment. Fully protected against an applicction of reverse current. This warranty does not extend to any of our products which have been subject to misuse. neglect, accident. or improper installation or appiication. nor shall at Remote Sensing extend to units which have been repaired or Styles "D" and "F" models have provisions for remoting substantially altered by persons other than authorized the point of regulation to the load. personnel. Short Circuit Protection We will, in no way, be liable for damage to other Electro.ic protection against accidental short circuit equipment caused by failure or malfunction of and temporary overloads. (The st)le "B" has provision equipment built by us. for external fusing). Transient Response 250 mV peak to peak, for a step load change of 10 to 100% for less than 50 milksecond duration. (Not specified for 2210). REPAIR POLICY Temperature Range The warranty obligation is limited to repairing or The temperature etfcct over the usable range of 20* F to adjusting of the power supply or parts thereof upon 125'F is less than 0.03%/*F. Do not exceed 150*F authorized return to the factory, transportation maximum temperature on base of solder header styles prepaid. Repair or replacement of such equipment, or permanent damage may result. (Not specified for which upon examination proves to be defective due to 2210). materials or workmanship, w;" be completed at no charge and reshipped F.O.B. Nashville. Any power Stability supply returned beyond the time limit warranty, or due Long term stability is better than 101% of rated voltage to misuse, etc.. will be repaired (repair price is at fixed conditions. Stabihty is 10 2% for Style"B"and approximately half price) or of not repairable, can be other models when operating below 9 volts. replaced at the current price. Rosemount 3 1

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TONR 12-82 Enclosure 0 Big Rock Point Plant Emergency Diesel Generator Specifications (Page 1 of 1) Original specifications on the EDG indicate that the diesel engine is rated at 10% overload for one hour. This is based on a 350 bhp rating at the site (600 feet elevation) and ambient temperature of 90*F DEMA Standard Practice. Full load rating of the generator is 200 kW at 80% power factor. Specific information regarding a two-hour rating is not provided. Nameplate data is as follows: Engine Caterpillar Serial #62B289, Series A Model #343A 6 Cylinder, 5.4 Bore, 6.5 Stroke RPM 1800 hp 319 Bill of Material or ESO No 15260' Generator Electric Machinery Manufacturing Company Serial #IR980611 Type BRKT Frame R27 kVA 250 RPM 1800 V 480 Cycle 60 Phase 3 PF 0.8 Amp 300 Inst Book 67 nu0382-0844c-32-45}}

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