ML17311A050
| ML17311A050 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 08/05/1997 |
| From: | Widay J ROCHESTER GAS & ELECTRIC CORP. |
| To: | Vissing G NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML17264A976 | List: |
| References | |
| NUDOCS 9708130105 | |
| Download: ML17311A050 (33) | |
Text
CATEGORY 1 REGOL'PrTOI INFORMATION DISTRIBUTION TEM (RIDS)
ACCESSION NBR:9708130105 DOC.DATE: 97/08/05 NOTARIZED:
NO DOCKET I FACIE:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G
05000244 AUTH. NAME AUTHOR AFFILIATION WIDAY;J.~
Rochester Gas
& Electric. Corp.
RECIP.NAME RECIPIENT AFF'ILIATION g
/P VISSING,G.S.
SUBJECT:
Forwards Ginna Station's revised EOP including rev 14 to'P-ELEC.l, "Loss of 12A 6
12B Busses".Rev ll to AP-RCP.l, "RCP Seal Malfunction".Rev 12 to AP-RCS.l, "Reactor Coolant Leaic".Rev 7 to AP-RCS.3, "High Reactor Coolant Activity"..
DISTRIBUTION CODE:
B002D COPIES RECEIVED:LTR i
ENCL I
SIZE:
TITLE: OR Submittal:Inadequate Core Cooling (Item II.F..2)
GL 82 NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72)'.
05000244 E
RECIPIENT ID CODE/NAME PDl-1 PD INTERNA ILE CE NR SA/SRXB RES/DET/EIB EXTERNAL: NOAC COPIES LTTR ENCL 1
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NRR/DRPM/PECB RES DE RES/DSIR/RPSB NRC PDR COPIES
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'IIIjiSIj IIIIIIIIII
, /Il/EIIN~ulIIIIIIIIIIII ROCHESTERGASANDELECTRICCORPORATION o 89EASTAVENUE, ROCHESTER, N.Y. 14649%001 JOSEPH A. WIDAY Rant Manager Ginna Nuclear Plant August 5, 1997 TELEPHONE AREA CODE 716 546.2700 U.S. Nuclear Regulatory Commission Document Control Desk Attn: Guy S. Vissing Project Directorate I-1 Washington, D.C.
20555
Subject:
Emergency Operating Procedures R.E. Ginna Nuclear Power Plant Docket No. 50-244
Dear Mr. Vissing:
As requested, enclosed are Ginna Station Emergency Operating Procedures.
Very truly yours, Joseph A. Widay JAW/jdw xc:
U.S. Nuclear Regulatory Commission Region I
475 Allendale Road King of Prussia, PA 19406-1415 Ginna USNRC Senior Resident Inspector Enclosure(s):
AP-ELEC.1, Rev. 14 AP-RCP.1, Rev. 11 AP-RCS.1, Rev. 12 AP-RCS.3, Rev. 7 9708L30l05 970805 lllliillllllllllllllllllllllllllllllllll, PDR ADQCK 05000244 F
'1
EOP:.
EC.1 TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV 11 PAGE 1 of 22 ROCHESTER GAS AND ELECTRIC CORPORATI N
GINNA STATION CONTROLLED COPY NDMBER L3 TECHNICAL REVIE PORC EVIEW DATE SUPERINTENDENT 3- /-9K EFFECT VE DATE CATEGORY: 1.0 REVIENED BY'
EOP:
P-ELEC.1 1
LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 2 of 22 A.
PURPOSE This procedure provides actions to respond to a loss of 12A and/or 12B Busses from HSD or at power conditions.
B.
ENTRY CONDITIONS/SYMPTOMS l.
ENTRY CONDITIONS This procedure may be entered from:
a.
AP-TURB.2, AUTOMATIC TURBINE RUNBACK, when busses 12A and/or 12B are found to be deenergized.
2.
SYMPTOMS The symptoms of loss of N12A or 12B SS Transformer are:
a.
Annunciator L-20, 12A XFMR OR 12A BUS TROUBLE, lit, or b.
Annunciator L-28, 12B XFMR OR 12B BUS TROUBLE, lit.
EOP:<
P-ELEC.1 T!TLE:
LOSS OF 12A AND/OR 12B BUSSES REV 11 PAGE 3 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION o
IF, AT ANY TIME DURING THIS PROCEDURE, A REACTOR TRIP OR SI OCCURS, E-O, REACTOR TRIP OR SAFETY INJECTION, SHALL BE PERFORMED.
o IF A TURBINE RUNBACK HAS OCCURRED, THEN AP-TURB.2, TURBINE LOAD REJECTION, SHOULD BE PERFORMED.
o IF ANY RADIOACTIVE RELEASE IN PROGRESS, THEN IT SHOULD BE TERMINATED UNTIL SUPPORT CONDITIONS ARE EVALUATED.
o OBSERVE D/G LOADING LIMITS OF 2300 KW FOR 1/2
- HOUR, 2250 KW FOR 2 HOURS, AND 1950 KW'OR CONTINUOUS SERVICE.
o DO NOT ATTEMPT TO ENERGIZE A BUS THAT IS POTENTIALLY FAULTED.
NOTE:
Conditions should be evaluated for site contingency reporting (Refer to EPIP-1.0, GINNA STATION EVENT EVALUATION AND CLASSIFICATION).
1 Verify Emergency D/G Associated With Dead Bus-RUNNING o
Bus 12A - D/G A o
Bus 12B - D/G B
IF appropriate emergency D/G(s)
NOT
- running, THEN attempt to start manually.
(Refer to ER-D/G.l, RESTORATION OF A FAILED D/G.)
2 Verify Both Trains Of AC Emergency Busses Energized To At Least 420 VOLTS:
o Bus 14 and bus 18 o
Bus 16 and bus 17 Try to restore power to all AC emergency busses.
IF power can NOT be restored to at least one train, THEN refer to ECA-O.O, LOSS OF ALL AC POWER, Step 1.
EOP:-
P-ELEC.1 TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 4 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 3 Verify Service Water System Operation:
a.
SW pumps
- AT LEAST ONE RUNNING IN EACH LOOP b.
SW header pressure GREATER THAN 40 PSIG IN EACH LOOP
- a. Verify selected SW pumps start on a timer (40 sec) after D/G start.
IF NOT, THEN manually start pumps as necessary (258 kw each).
- b. Manually align valves as necessary.
4 Check CCW Pump Status:
- a. At least one CCW pump RUNNING
- b. Annunciator A-22, CCW PUMP DISCHARGE LO PRESS 60 PSIG EXTINGUISHED
- a. Start one CCW pump (124 kw).
- b. Start second CCW pump (124 kw).
5 Check RCS Temperature GREATER THAN 350'F Go to AP-ELEC.3, LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F).
6 Verify Bus 11A And 11B Normal Feed Breakers CLOSED IF turbine trip has occurred from power less than 50%,
THEN go to AP-TURB.l, TURBINE TRIP WITHOUT RX TRIP REQUIRED, Step l.
IF turbine stop valves
- open, THEN trip turbine and go to AP-TURB.1, TURBINE TRIP WITHOUT RX TRIP REQUIRED, Step l.
IF turbine NOT previously latched; THEN perform the following:
a.
Ensure reactor power less than 8a.
b.
Go to Step 16.
4 EOP-P-ELEC. 1 LOSS OF 12A AND/OR 12B BUSSES REV: ll PAGE 5 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 7 Verify Annunciator H-16, INSTRUMENT AIR COMP EXTINGUISHED Dispatch AO to locally reset and start IA compressors as necessary.
8 Monitor S/G Level Control:
o S/G level
- TRENDING TO PROGRAM o
MFW regulating valves CONTROLLING IN AUTO Place MFW regulating valves in MANUAL and control feed flow as necessary.
EOP:
P-ELEC. 1 TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 6 of 22 STEP ACTION/EXPECTED.RESPONSE
RESPONSE
NOT OBTAINED NOTE:
When restarting equipment for recovery, it is preferable to start equipment on busses being supplied from offsite power, if possible.
9 Check CVCS Operation:
- a. Charging pumps
- AT LEAST ONE RUNNING b.
Check letdown indications:
o Check PRZR level GREATER THAN 13%
o Letdown flow - APPROXIMATELY 40 GPM o
Letdown flow -
STABLE
- c. Adju'st charging pump speed and HCV-142 as necessary to restore PRZR'evel and labyrinth seal D/P d.
Go to Step 11 a.
Perform the following:
- 1) Close loop B cold leg to REGEN Hx, AOV-427.
- 2) Start charging pumps as necessary.
- 3) Establish greater than 20 gpm charging line flow.
- b. Perform the following:
- 1) Close loop B cold leg to REGEN Hx, AOV-427.
- 2) Close letdown orifice valves (AOV-200A, AOV-200B, and AOV-202)
- 3) IF PRZR level greater than 13%,
THEN go to Step 10.
IF
- NOT, THEN continue with Step 12.
WHEN PRZR level greater than 13%,
THEN do Steps 10 and 11.
EOP P-ELEC. 1 "l
TITLE:
LOSS OF 12A AND/OR 12B BUSSES
, REV:
11 PAGE 7 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
Steps 10 and 11 may be performed concurrently.
10 Establish Normal Letdown:
- a. Establish charging line flow to REGEN Hx GREATER THAN 20 GPM
- b. Verify the following switches in CLOSE' Letdown orifice valve (AOV-200A, AOV-200B, and AOV-202)
~ Loop B cold leg to REGEN Hx AOV-427
- c. Place letdown controllers in MANUAL at 40% open
~ TCV-130
~ PCV-135 d.
Open AOV-427 e.
Open letdown orifice valves as necessary
- f. Place TCV-130 in AUTO at 105 'F
- g. Place PCV-135 in AUTO at 250 psig
- h. Adjust charging pump speed and HCV-142 as necessary Perform the following steps in sequence to establish excess letdown:
o Place excess letdown divert
- valve, AOV-312, to NORMAL o
Ensure CCW from excess letdown
- open, AOV-745 o
Ensure RCP seal return isolation valve open, MOV-313 o
Open excess letdown isolation
- valve, AOV-310 o
Slowly open HCV-123 to maintain excess letdown temperature less than 195'F and pressure less than 100 psig
1
EOP:
P-ELEC.1 1
TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV'1 PAGE 8 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 11 Verify PRZR Heaters Restored:
o PRZR proportional heater breaker CLOSED o
PRZR backup heater breaker-RESET/IN AUTO Perform the following:
- a. Verify adequate D/G capacity available for PRZR heaters (400 kw each bank).
- b. Reset and close PRZR proportional heater breaker if necessary.
- c. Reset PRZR backup heater breaker and return to AUTO if necessary.
IF on natural circulation and at least 100 kw of PRZR heaters can NOT be restored within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, THEN be on RHR within an additional 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
(Refer to Technical Specification 3.1.1.5) 12 Verify Normal Rod Control Restored:
- a. Annunciator C-5, PPCS ROD SEQUENCE OR ROD DEVIATION EXTINGUISHED a.
Go to AP-RCC.2, RCC/RPI MALFUNCTION.
- b. Annunciator E-28, POWER RANGE ROD DROP ROD STOP EXTINGUISHED
- b. Perform the following:
- 1) Place rod control bank selector switch in MANUAL.
- c. Place rod control bank selector switch in AUTO if desired
- 2) Reset NIS rod drop rod stop signals (at NIS racks) as necessary.
P-ELEC.1 TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 9 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 13 Establish Stable Plant Conditions:
a.
Check Tavg
- TRENDING TO TREF
- a. Insert control rods or, if necessary, decrease turbine load to match Tavg to Tref.
b.
Check PRZR pressure
- TRENDING TO 2235 PSIG
- b. Verify proper operation of PRZR heaters and spray or take manual control of PRZR pressure controller 431K.
c.
Check PRZR level
- TRENDING TO PROGRAM
- c. Verify proper operation of charging pump speed controllers or take manual control of speed controllers to control PRZR level.
NOTE:
Power operation may continue if conditions required by Tech Spec section 3.7 are met.
14 Restore Normal Electric System Alignment:
- a. Verify circuit 767 and/or 751-AVAILABLE
- b. Restore power'to 12A and/or 12B bus (Refer to ER-ELEC.l, RESTORATION OF OFFSITE POWER) a.
Continue with Step 15.
WHEN offsite power available, THEN do Steps
- 14b, c and d.
- c. Verify'll emergency AC bus normal feed breakers CLOSED
~ Bus 14
~ Bus 16
~ Bus 17
~ Bus 18
- c. Restore emergency AC busses to normal power supply (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER)
- d. Stop any unloaded emergency D/G and place in standby (Refer to Attachment D/G STOP)
EOI'-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV 11 PAGE 10 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 15 Establish Normal Plant Conditions:
- a. Verify EH control in OPER PAN and IMP IN
- a. IF conditions requiring runback have cleared, THEN place EH in OPER PAN and IMP IN.
b.
Ensure steam dump controller, HC-484, in AUTO at 1005 psig
- c. Verify annunciator G-15, STEAM DUMP ARMED -
EXTINGUISHED
- c. IF Tavg within 6'F of Tref, THEN perform the following:
- 1) Ensure steam dump valves closed.
- 2) Reset steam dump.
- d. Verify 2 charging pumps RUNNING
- d. Perform the following:
- 1) Manually start charging pumps as necessary.
- 2) Place selected charging pump speed controller in AUTO if desired.
- e. Verify Rod Control Selector Switch in AUTO e.
Place Rod Control Selector Switch in AUTO if desired.
f.
Go to Step 29
EOP:.
P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV'1 PAGE 11 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
o Following RCP trip, a decrease in idle S/G level may occur.
- Also, swell may be anticipated in the operating S/G due to load pickup from the idle loop.
o Temperatures in the loop with the stopped RCP will not be indicative of true Tavg and hT values.
o If only one RCP is operating, single loop shutdown margin requirements should be observed.
o Attempts to restore offsite power should continue (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER.)
16 Check Secondary Heat Sink Status:
a.
Any main feed pump RUNNING a.
Perform the following:
- 1) Verify MDAFW pumps running as necessary.
- 2) Verify TDAFW pump running if necessary.
- b. Verify. S/G levels
- TRENDING TO 39')
Ensure Rx power less than 2%.
- b. Control feed flow as necessary to restore S/G level.
EOP.
P-ELEC.1
)
TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 12 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 17 Check TDAFW Pump Status:
a.
TDAFW pump RUNNING b.
Check S/G status o
At least one S/G level GREATER THAN 17%
a.
Go to Step 18.
b.
Go to Step 18.
-OR-o Both MDAFW pumps OPERABLE
- c. Pull stop TDAFW pump steam supply valves
~ MOV-3504A
~ MOV-3505A 18 Check Any RCP RUNNING Verify natural circulation.
(Refer to Attachment NC.)
IF natural circulation can NOT be verified, THEN increase dumping steam.
19 Establish Condenser Steam Dump Pressure Control:
- a. Verify condenser available:
o Any MSIV -
OPEN o
Annunciator G-15, STEAM DUMP ARMED - LIT
- b. Ad]ust condenser steam dump controller HC-484 to 1005 psig in AUTO a.
Perform the following:
- 1) Place S/G ARV controllers in AUTO at 1005 psig and verify proper operation.
IF S/G ARVs NOT controlling in AUTO, THEN control S/G ARVs manually.
2)
Go to Step 20.
- c. Place steam dump mode selector switch to MANUAL
EOP:.
P-ELEC.1 I
TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV'1 PAGE 13 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 20 Restore Non-Safeguards Busses As Follows:
- a. Verify Bus 13 and 15 ENERGIZED
- b. Verify MCC A -
ENERGIZED
- c. Verify MCC B
ENERGIZED
- d. Verify annunciator J-8, 480V MCC SUPPLY BREAKER TRIP EXTINGUISHED
- e. Reset control room lighting if necessary
- f. Reset MAIN XFMR AUX PWR SUPPLY breakers as necessary
~ Bus 13
~ Bus 15
- a. IF offsite power available, THEN attempt to restore offsite power and normal feed to Bus 13/15 (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER).
IF offsite power is NOT available, THEN perform the following:
o Close Bus 13 to Bus 14 tie breaker o
Close Bus 15 to Bus 16 tie breaker
- b. Perform the following:
- 1) Ensure the following pumps in PULL STOP:
~
EH pump A
~ Turning gear oil pump
~ HP seal oil backup pump
- 2) Close MCC A supply breaker from bus 13.
- c. Perform the following:
- 1) Ensure EH pump B in PULL STOP.
n I
rt
EOP:
P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 14 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
When restarting equipment for recovery, it is preferable to start equipment on busses being supplied from offsite power, if possible.
21 Check IA System:
- a. Verify 2 IA compressors RUNNING b.
Check IA supply o
Pressure GREATER THAN 60 PSIG o
Pressure STABLE OR INCREASING
- a. Manually start IA compressors as necessary (75 kw each).
~
IF IA can NOT be established, THEN refer to AP-IA.l, LOSS OF INSTRUMENT AIR.
22 Verify Instrument Bus D-ENERGIZED Energize MCC B.
IF MCC B NOT available, THEN perform the following:
- a. Verify MCC A energized.
- b. Place instrument bus D on maintenance supply.
EOP i P-ELEC.1 I
TiTLE:
LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 15 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 23 Check CVCS Operation:
- a. Charging pumps
- AT LEAST ONE RUNNING b.
Check letdown indications:
o Check PRZR level GREATER THAN 13%
o Letdown flow - APPROXIMATELY 40 GPM o
Letdown flow - STABLE
- c. Adjust charging pump speed and HCV-142 as necessary to restore PRZR level and labyrinth seal D/P d.
Go to Step 25 a.
Perform the following:
- 1) Close loop B cold leg to REGEN Hx, AOV-427.
- 2) Start charging pumps as necessary.
- 3) Establish greater than 20 gpm charging line flow.
- b. Perform the following:
- 1) Close loop B cold leg to REGEN Hx, AOV-427.
- 2) Close letdown orifice valves (AOV-200A, AOV-200B, and AOV-202)
- 3) IF PRZR level greater than 13%,
THEN go to Step 24.
IF
- NOT, THEN continue with Step 26.
WHEN PRZR level greater than 13%,
THEN do Steps 24 and 25.
EOP:
P,-ELEC. 1 TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 16 of 22 STEP ACTION/EXPECTED'RESPONSE
RESPONSE
NOT OBTAINED NOTE:
Steps 24 and 25 may be performed concurrently.
24 Establish Normal Letdown:
- a. Establish charging line flow to REGEN Hx -
GREATER THAN 20 GPM.
- b. Verify the following switches in CLOSE' Letdown orifice valve (AOV-200A, AOV-200B, and AOV-202)
~ Loop B cold leg to REGEN Hx AOV-427
- c. Place letdown controllers in MANUAL at 40% open
~ TCV-130
~ PCV-135 d.
Open AOV-427.
Perform the following steps in sequence to establish excess letdown:
o Place excess letdown divert
- valve, AOV-312, to NORMAL o
Ensure CCW from excess letdown
- open, AOV-745 o
Ensure RCP seal return isolation valve open, MOV-313 o
Open excess letdown isolation.
- valve, AOV-310 o
Slowly open HCV-123 to maintain excess letdown temperature less than 195'F and pressure less than 100 psig e.
Open letdown orifice valves as necessary.
- f. Place TCV-130 in AUTO at 105'F.
- g. Place PCV-135 in AUTO at 250 psig.
- h. Adjust charging pump speed and HCV-142 as necessary.
EOP:
P-ELEC. 1 J
LOSS OF 12A AND/OR 12B BUSSES REV 11 PAGE 17 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 25 Verify PRZR Heaters Restored:
o PRZR proportional heater breaker CLOSED o
PRZR backup heater breaker RESET/IN AUTO Perform the following:
- a. Verify adequate D/G capacity available for PRZR heaters (400 kw each bank).
- b. Reset and close PRZR proportional heater breaker if necessary.
- c. Reset PRZR backup heater breaker and return to AUTO if necessary.
IF on natural circulation and at least 100 kw of PRZR heaters can NOT be restored within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, THEN be on RHR within an additional 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
(Refer to Technical Specification 3.1.1.5)
EOP!
P-ELEC.1 TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV 11 PAGE 18 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 26 Establish Stable Plant Conditions:
a.
Check Rx power
- LESS THAN 2.5x10 6
AMPS b.
Check PRZR pressure
- TRENDING TO 2235 PSIG a.
Ensure rod control bank selector in MANUAL and insert rods to reduce Rx power as necessary.
- b. Verify proper operation of PRZR heaters and spray or take manual control of PRZR pressure controller 431K.
- c. Verify 2 charging pumps RUNNING c.'erform the following:
- 1) Manually start charging pumps as necessary.
- 2) Place selected charging pump speed controller in AUTO if desired.
d.
Check PRZR level
- between 20%
and 30%
- d. Control charging as necessary.
e.
Check S/G levels
- TRENDING TO 39'.
Control feed flow as necessary to restore both S/G levels to 39'.
- f. Check RCS Tavg GREATER THAN 540'F
- f. Control dumping steam as necessary.
IF cooldown continues, THEN close both MSIVs.
EOP P-ELEC.1 TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 19 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED x******
x
- x
- x* 0
- A *x*************
CAUTION ANYTIME EMERGENCY D/GS ARE THE ONLY SOURCE OF AC POWER TO THE PLANT, PERSONNEL SHOULD BE ASSIGNED TO MAINTAIN SURVEILLANCE OF THE D/GS.
0 x ****************
27 Restore Normal Electric System Alignment:
- a. Verify circuit 767 and/or 751 AVAILABLE
- b. Restore power to 12A and/or 12B bus if necessary (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER) a.
Continue with Step 28.
WHEN offsite power available, THEN do Steps
- 27b, c and d.
- c. Verify all emergency AC bus normal feed breakers CLOSED
~ Bus 14
~ Bus 16
~ Bus 17
~ Bus 18
- c. Restore emergency AC busses to normal power supply (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER)
- d. Stop any unloaded emergency D/G and place in standby (Refer to Attachment D/G STOP)
EOP:
P-ELEC. 1 I
LOSS OF 12A AND/OR 12B BUSSES REV 11 PAGE 20 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
Evaluate conditions to determine if turbine should be placed on turning gear.
28 Establish Normal Shutdown Alignment:
- a. Verify turning gear oil pump RUNNING a.
Perform the following:
l) Manually start turning gear oil pump (42 kw).
- 2) Break vacuum to accelerate turbine coastdown.
- 3) Continue with Step 28b.
WHEN shaft stops, THEN dispatch AO to pl'ace turbine on turning gear.
- b. Verify adequate Rx head cooling:
l) Verify at least one control rod shroud fan RUNNING l) Manually start one fan as power supply permits (45 kw).
- 2) Verify one Rx compartment cooling fan RUNNING
- 2) Manually start one fan as power supply permits (23 kw).
- c. Dispatch AO to start waste gas compressor as necessary
EOP I
P-ELEC.1 T I i'LE:
LOSS OF 12A AND/OR 12B BUSSES REV 11 PAGE 21 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 29 Restore Equipment Alignment:
- a. Verify at least 2
CNMT recirc fans RUNNING b.
Check CCW pumps ONLY ONE RUNNING c.
Check radiation monitoring systems:
o CNMT vent sample pump RUNNING
- a. Start CNMT recirc fans as necessary (240 kw each).
- b. IF two CCW pumps running, THEN manually stop one pump.
- c. Restore sample pumps and radiation monitors as necessary.
o Plant vent sample pump RUNNING o All area and process monitors operating as required
- d. Dispatch AO to verify proper operation of seal oil system e.'Verify motor fire pump breaker,-
CLOSED e.
Close motor fire pump breaker.
- f. Verify annunciator L-l, AUX BLDG VENT SYSTEM CONTROL PANEL EXTINGUISHED
- g. Verify service air compressor RUNNING
- h. Verify MCC G
ENERGIZED
- i. Check control board annunciator panels
- ALARM STATUS VALID FOR PLANT CONDITIONS
- f. IF bus llA or 11B energized, THEN dispatch AO to restore AUX BLDG ventillation (Refer to T-35A, AUX AND INTERMEDIATE BUILDING VENTILLATION STARTUP AND SHUTDOWN)
- g. Dispatch AO to locally start service air compressor.
- h. Manually close breaker.
- i. Perform alarm response procedures for unexpected alarms.
- j. Verify control board valve alignment NORMAL (Refer to 0-6.13, DAILY SURVEILLANCE LOG) j. Manually align valves as necessary.
EOP:
P;ELEC.1 Tt'fLE:
LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 22 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 30 Check Status Of DC System Loads:
- OFF
- b. Perform the following:
- c. Perform the following:
Refer to 0-9.3, NRC IMMEDIATE NOTIFICATION, for reporting requirements.
31 Notify Higher Supervision 32 Return To Procedure Or
'uidance In Effect
-END-
EOP:
P-.ELEC. 1 LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 1 of 1
AP-ELEC.
1 APPENDIX LIST TITLE PAGES 1)
FIGURE MIN SUBCOOLING 2)
ATTACHMENT NC 3)
ATTACHMENT D/G STOP
EOP:
P-ELEC.1 TITLE:
LOSS OF 12A AND/OR 12B BUSSES REV:
11 PAGE 1 of 1 FIGURE MIN SUBCOOLING NOTE:
Subcooling Margin = Saturation Temperature From Figure Below [-] Core Exit T/C Indication RC 2500 2400 2300 2200 2100 2000 1900 1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0
S PRESSURE (PSIG)
RCS PRESSURE INCREMENTS 20 PSIG SUBCOOLEO REGION OVERS NORMAL CNMT INAOE(UATE SUBCOOL ING REGION TEMPERATURE INCREMENTS 10 F
200 250 300 350
'00 450 500 550 600 650 700 CORE EXIT SATURATION TEMPERATURE ('F)
jX e4