ML17264A975
| ML17264A975 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 08/05/1997 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17264A976 | List: |
| References | |
| AP-ELEC.1, NUDOCS 9708130116 | |
| Download: ML17264A975 (60) | |
Text
EOP: P-ELEC.1 TITLE: LOSS OF 12A AND/OR 12B-BUSSES REV 14 PAGE 1 of 22 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER RESPONSIBLE AGER EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY: q708i30iih 970805 PDR ADOCK 05000244 F PDR EOP: P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV: 14 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 1.ENTRY CONDITIONS
-This procedure may be entered from: a.AP-TURB.2, TURBINE LOAD REJECTION, when busses 12A and/or 12B are found to be deenergized.
2.SYMPTOMS-The symptoms of loss of g12A 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 14 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'CS TEMPERATURE IS<350'F, THEN AP-ELEC.3, LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)SHOULD 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 FOR CONTINUOUS SERVICE.o DO NOT ATTEMPT TO ENERGIZE A BUS THAT IS POTENTIALLY FAULTED.NOTE: o Conditions should be evaluated for site contingency reporting (Refer to EPIP-1.0, GINNA STATION EVENT EVALUATION AND CLASSIFICATION).
o AP-ELEC.14/16, LOSS OF SAFEGUARDS BUS 14/16 AND AP-ELEC.17/18, LOSS OF SAFEGUARDS BUS 17/18 provide additional guidance for the loss of safeguards busses.1 Establish Manual Rod Control a, Place Rod Control Bank Selector Switch to MANUAL b.Verify control rod motion stops b.Manually trip the reactor and go to E-O, REACTOR TRIP OR SAFETY INJECTION.
c.Manually move control rods as necessary EOP: P-ELEC.l LOSS OF 12A AND/OR 12B BUSSES REV: 14 PAGE 4 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2 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.)3 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 1.4 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 naaassary (258 ku each), b.Manually align valves as necessary.
5 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).
EOP: P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV'4 PAGE 5 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED'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.1, 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 1.IF turbine NOT previously latched, THEN perform the following:
a.Ensure reactor power less than 8a.b.Go to Step 16.7 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 52%o MFW regulating valves CONTROLLING IN AUTO Place MFW regulating valves in MANUAL and control feed flow as necessary.
EOP: P-ELEC.1 TlTLE LOSS OF 12A AND/OR 12B BUSSES REV: 14 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'.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 ll a.Perforln the following:
1)Close loop B cold leg to REGEN Hx, AOV-427.2)'tart 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 TITLE: LOSS OF 12A AND/OR 12B BUSSES REV'4 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 EOP: P-ELEC.1 71TLE: LOSS OF 12A AND/OR 12B BUSSES REV: 14 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 IF adequate D/G capacity available for PRZR heaters (400 kw each bank), THEN perform the following:
a.Reset and close PRZR proportional heater breaker if necessary, b.Reset PRZR backup heater breaker and return to AUTO if necessary.
r IF adequate D/G capacity NOT available, THEN refer to ER-PRZR.1.
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.Annunciator F-15, RCS TAVG DEV 4'F-EXTINGUISHED 2)Reset NIS rod drop rod stop signals (at NIS racks)as necessary, c.Go to step 13.d.Place rod control bank selector switch in AUTO if desired EOP: P-ELEC.1 TITLE: LOSS OF 12A'ND/OR 12B BUSSES REV: 14 PAGE 9 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 13 Establish Stable Plant Conditions:
a.Check Tavg-TRENDING TO TREF b.Check PRZR pressure-TRENDING TO 2235 PSIG a.Insert control rods or, if necessary, decrease turbine load to match Tavg to Tref.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 ITS section 3.8 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.1, RESTORATION OF OFFSITE POWER)a.Continue with Step 15.WHEN offsite power available, THEN do Steps 14b, 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 LOSS OF 12A AND/OR 12B BUSSES REV 14 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 5'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 EN>: P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV'4 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 froIn 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, refer to AP-RCS.2, LOSS OF REACTOR COOLANT FLOW.o Attempts to restore offsite power should continue (Refer to ER-ELEC.l>
RESTORATION OF OFFSITE POWER'.)16 Check Secondary Heat Sink Status: a.Any main feed pump-RUNNING b.Verify S/G levels-TRENDING TO 52%a.Perform the following:
l)Verify MDAFW pumps running as necessary.
2)Verify TDAFW pump running if necessary.
3)Ensure Rx power less than 2S.b.Control feed flow as necessary to restore S/G level.
4 P-ELEC.1 TITLE: LOSS OF 12A AND/OR 12B BUSSES REV'4 PAGE 12 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 17 Check TDAFW-Pump Status: a.TDAFV 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.Adjust 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 T1TLE: LOSS OF 12A AND/OR 12B BUSSES REV 14 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).1)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.2)Close MCC B supply breaker from bus 15.d.Restore power to other MCCs as D/G loading permits.
EOP: P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV 14 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 at least 2 air compressors
-RUNNING b.Check IA supply o Pressure-GREATER THAN 60 PSIG o Pressure-STABLE OR INCREASING, a.Manually start air compressors as necessary (75 kw each).b.Dispatch an AO to locally reset and start IA compressors (75 kw each).IF IA can NOT be established, THEN refer to AP-IA.1, 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$P-ELEC.1 TITLE$LOSS OF 12A AND/OR 12B BUSSES REV 14 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: 14 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.e.Open letdown orifice valves as necessary.
f.Place TCV-130 in AUTO at 105'F.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 g.Place PCV-135 in AUTO at 250 psig, h.Adjust charging pump speed and HCV-142 as necessary.
EOP: P-ELEC.1 TITLE: LOSS OF 12A AND/OR 12B BUSSES REV: 14 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 IF adequate D/G capacity available for PRZR heaters (400 kw each bank), THEN perform the following:
a.Reset and close PRZR proportional heater breaker if necessary.
b.Reset PRZR backup heater breaker and return to AUTO if necessary.
IF adequate D/G capacity NOT available, THEN refer to ER-PRZR.1.
26 Establish Stable Plant Conditions:
a.Check Rx power-=LESS THAN 2.5x10 6 AMPS a.Ensure rod control bank selector in MANUAL and insert rods to reduce Rx power as necessary.
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.Verify 2 charging pumps-RUNNING c.Perform 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 35%and 40%d.Control charging as necessary.
e.Check S/G levels-'RENDING TO 52%e.Control feed flow as necessary to restore both S/G levels to 52%.f.Check RCS Tavg-GREATER THAN 540'F f.Cont'rol dumping steam as necessary.
IF cooldown continues, THEN close both MSIVs.
EOP: P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV 14 PAGE 18 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 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.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) 0 t' EOP: P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV 14 PAGE 19 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:
1)Manually start turning gear oil pump (42 kw).2)Break vacuum to accelerate turbine coastdown.
'b.Verify adequate Rx head cooling: 3)Continue with Step 28b.WHEN shaft stops, THEN dispatch AO to place turbine on turning gear.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 d.Dispatch AO to restore SFP cooling as necessary
EOP: P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV: 14 PAGE 20 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 29 Check Status Of DC System Loads: a.Verify turb emergency DC lube oil pump-OFF b.Verify TDAFV pump DC oil pump-OFF IN AUTO c.Verify both MFW pump DC oil pumps-OFF a.Manually stop emergency DC lube oil pump.b.Perform the following:
1)Ensure TDAFV AC oil pump running.2)Stop TDAFV pump DC oil pump.c.Perform the following:
1)Ensure associated MFV pump AC oil pump running.2)Stop MFW pump DC oil pump and place in AUTO EOP: P-ELEC.1 TITLE: LOSS OF 12A AND/OR 12B BUSSES REV: 14 PAGE 21 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 30 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'--ADLRM STATUS VALID FOR PLANT CONDITIONS f.IF bus 11A or 11B energized, THEN dispatch AO to restore AUX BLDG ventilation (Refer to T-35A, AUX AND INTERMEDIATE BUILDING VENTILATION 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)), Manually align valves as necessary.
EOP: P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV: 14 PAGE 22 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 31 Reset UV Relay Targets On Undervoltage Cabinets~Bus 14'Bus 16~Bus 17~Bus 18 NOTE: Refer to 0-9.3, NRC IMMEDIATE NOTIFICATION, for reporting requirements.
32 Notify Higher Supervision 33 Return To Procedure Or Guidance In Effect-END-EOP: P-ELEC.1 LOSS OF 12A AND/OR 12B BUSSES REV: 14 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 14 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 INCREHENTS 20 PSIG SUBCOOLED REGION ADVERSE CNHT NORHAL CNHT INADEQUATE SUBCOOLING REGION TEHPERATURE INCREHENTS 10'F 0 200 250 300 350 400 450 500 550 600 650 700 CORE EXIT SATURATION TEHPERATURE
(')
EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV: 3 PAGE 1 of 20 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER~5 RESPONSIBLE AGER EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:
EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV 3 PAGE 2 of 20 A.PURPOSE-This procedure provides actions to respond to a loss of 12A or 12B SS Transformer when RCS temperature is less than 350'F.B.ENTRY CONDITIONS/SYMPTOMS 1.ENTRY CONDITIONS
-This procedure may be entered from: a.AP-ELEC.1, LOSS OF 12A AND/OR 12B BUSSES, when busses 12A and/or 12B are found to be deenergized and RCS temperature is less than 350'F.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.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV 3 PAGE 3 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION o IF THE RCS IS WATER SOLID, THEN ANY INCREASE IN RCS TEMPERATURE MAY RESULT IN A SIGNIFICANT RCS PRESSURE INCREASE.RCS HEATUP SHOULD BE PREVENTED.
o OBSERVE D/G LOADING LIMITS OF 2300 KW FOR 1/2 HOUR, 2250 KW FOR 2 HOURS, AND 1950 KW FOR CONTINUOUS SERVICE.o 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.o IF ANY RADIOACTIVE RELEASE IN PROGRESS, THEN IT SHOULD BE TERMINATED UNTIL SUPPORT CONDITIONS ARE EVALUATED.
- 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.
EOP: P-ELEC.3 T!jLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV'PAGE 4 of 20 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.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 conditions permit (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).
EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV 3 PAGE 5 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 5 Check RCS Temperature
-STABLE IF RCS temperature increasing, THEN stabilize temperature using available method.~RHR normal cooling~Dump steam and feed~Blowdown and feed IF RCS temperature decreasing, THEN perform the following:
a.Stop dumping steam or control RHR normal cooling.b.IF cooldown continues, THEN perform the following:
l)IF either MDAFW pump operable, THEN ensure TDAFW pump steam supply valves in PULL STOP.2)WHEN S/G level greater than 5%in one S/G, THEN limit feed flow to that required to maintain S/G level.
EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV 3 PAGE 6 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE,NOT OBTAINED CAUTION IF REFUELING IN PROGRESS, THEN STOP REFUELING OPERATIONS (NOTIFY REFUELING SRO).*****************************************6 Restore Non-Safeguards Busses As Follows: a.Verify non-safeguards busses-ENERGIZED~Bus 13~Bus 15 b.Verify MCC'A-ENERGIZED c.Verify MCC B;ENERGIZED d.Check CNMT vent sample'pump-RUNNING e.Verify annunciator J-8, 480V MCC SUPPLY BREAKER TRIP EXTINGUISHED f.Reset control room lighting if necessary a.Close non-safeguards bus tie breaker for affected bus(ses)if possible:~Bus 13 to bus 14 tie~Bus 15 to bus 16 tie 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.2)Close MCC B supply breaker from bus 15.d.IF CNMT purge or mini-purge in progress, THEN secure purging.e.Restore power to other MCCs as D/G loading permits.~MCC E~MCC F~MCC G
EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV'PAGE 7 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 7 Check IA System: a.Verify at least 2 air compressors
-RUNNING b.Check IA supply o Pressure-GREATER THAN 60 PSIG o Pressure-STABLE OR INCREASING a.Manually start air compressors as necessary (75 kw each).b.Dispatch an AO to locally reset and start air compressors as necessary (75 kw each).IF IA can NOT be established, THEN refer to AP-IA.l, LOSS OF INSTRUMENT AIR.8 Check RCS Cooling: a.RHR system-PREVIOUSLY ALIGNED FOR RHR NORMAL COOLING b.Check RHR pumps-ANY RUNNING c.Go to Step 11 a.Go to Step 18.b.IF RHR normal cooling previously in service, THEN go to Step 9.IF RHR normal cooling NOT required, THEN go to Step 18.
EOP: P-ELEC.3 TlTLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV 3 PAGE 8 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 9 Establish Conditions To Start RHR'ump: a.Any RHR pump-AVAILABLE a.IF RCS level greater than 64 inches, THEN go to AP-RHR.l, LOSS OF RHR.IF NOT, THEN go to AP-RHR.2, LOSS OF RHR.WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS.
b.Verify CCW cooling to RHR system in service o CCW pumps-AT LEAST ONE RUNNING o CCW to RHR Hxs, MOV-738A AND MOV-738B-OPEN AS NECESSARY c.Place RHR Hx bypass valve, HCV-626, to MANUAL and close valve b.Perform the following:
l)Ensure at least one CCW pump running.2)Open MOV-738A and MOV-738B as necessary.
IF CCW can NOT be restored, THEN continue attempts to restore CCW (Refer to AP-CCW.3, LOSS OF CCW PLANT SHUTDOWN).
EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV: 3 PAGE 9 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION o STARTING AN RHR PUMP MAY RESULT IN AN RCS LEVEL OR PRESSURE DECREASE DUE TO SHRINK OR VOID COLLAPSE o THE RHR HX OUTLET VALVES (HCV-624 AND HCV-625)WILL FAIL OPEN ON LOSS OF INSTRUMENT AIR PRESSURE.10'Restore RHR Flow: a.Start one RHR pump b.At least one RHR pump-RUNNING c.Establish RHR flow-WITHIN LIMITS OF TABLE BELOW b.Go to Step 10d.c.Manually adjust RHR flow as necessary.
B LOOP LEVEL 100-70 inches<70-30 inches<30-16 inches<16-10 inches<10-6 inches RHR FLOW<3000 gpm 1400 gpm 5 1000 gpm 800 gpm 500 gpm d.RHR flow-RESTORED d.IF RCS level greater than 64 inches, THEN go to AP-RHR.l, LOSS OF RHR.IF NOT, THEN go to AP-RHR.2, LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS.
e.Place RHR Hx bypass valve, HCV-626, controller in AUTO at desired flowrate This Step continued on the next page.
EOP: P-ELEC.3 TITLE LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV: 3 PAGE 10 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED (Step 10 continued from previous page)f.Open RHR pump flow control valves as necessary to stabilize RCS temperature
~HCV-624~HCV-625 g.Check core exit T/Cs,-STABLE OR DECREASING g Start another RHR pump or increase RHR flow to establish required RCS cooling.,DO NOT exceed RHR flow limits from table above.11 Check AFW Pump Status: a.AFW pumps-ANY RUNNING b.Both S/G levels-AT DESIRED LEVEL c.Stop running AFW pumps and place switches in PULL STOP a.Go to Step 12.b.Continue with Step 12.WHEN desired S/G levels established, THEN do Step llc.12 Evaluate RCS Conditions:
a.Check RCS status: o RCS-CLOSED o RCS pressure-GREATER THAN ATMOSPHERIC a.IF RCS is open to atmosphere, THEN go to Step 17.b.Verify RCP 81 seal D/Ps GREATER THAN 220 PSID b.IF any RCP running with Cl seal D/P less than 220 psid, THEN stop affected RCP.
EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV: 3 PAGE 11 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 13 Check Charging Pump Suction Aligned To VCT: a.VCT level-GREATER THAN 20%'.IF VCT level can NOT be maintained greater than 5%, THEN perform the following:
1)Ensure charging pump suction aligned to RWST o LCV-112B open o LCV-112C closed b.Verify cha'rging pumps aligned to VCT o LCV-112C open o LCV-112B closed 2)Continue with Step 14.WHEN VCT level greater than 20%, THEN do Step 13b.b.Manually align valves as necessary.
14 Check Charging Pumps-ANY CHARGING PUMP RUNNING IF charging pumps required, THEN perform the following:
a.Verify charging to loop B cold leg, AOV-294, open.b.Verify charging.flow control valve, HCV-142, open as necessary.
c.IF desired, THEN place letdown pressure controller, PCV-135, in MANUAL.d.Start one charging pump (75 kw each pump).e.Increase charging pump speed and control PCV-135 as necessary to control PRZR pressure or level.
EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV'PAGE 12 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 15 Monitor RCS Pressure: a.Pressure-LESS THAN 390 PSIG b.Pressure-STABLE a.IF RCS is solid, THEN control charging and letdown pressure control valve (PCV-135)as necessary to stabilize RCS pressure.IF PRZR bubble established, THEN operate normal or auxiliary spray to decrease pressure.b.Stabilize RCS pressure using appropriate means.~Charging~Letdown~PCV-135 (solid)~Normal spray~Auxiliary spray~PRZR heaters 16 Check PRZR Level: a.Narrow range level-ON SCALE b.Level-TRENDING TO PROGRAM a.IF RCS is solid, THEN go to Step 17.b.Adjust charging pump speed as necessary to control PRZR level.17 Monitor RCS Temperature a.Core exit T/Cs-STABLE OR DECREASING a.Adjust RCS cooling as necessary and return to Step 3.~S/G steaming~S/G feeding~RHR cooling b.Go to Step 26 EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV 3 PAGE 13 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 18 Check AFW System Status: a.Verify TDAFW pump steam supply valves in PULL STOP b.Verify MDAFW pump crosstie valves closed~MOV-4000A~MOV-4000B a.IF S/Gs providing heat sink, THEN perform the following:
l)Verify adequate MDAFW flow.2)Pull stop TDAFW pump.3)Adjust AFW flow as necessary to stabilize S/G level and RCS temperature.
b.Ensure at least one MDAFW pump off.IF two pumps required, THEN close both MDAFW pump crosstie valves.19 Check Any S/G.Level-GREATER THAN 174'tart MDAFW pumps as necessary to restore<<S/G level.20 Check RCS Pressure-GREATER THAN 300 PSIG Increase RCS pressure to greater than 300 psig.IF RCP@1 seal D/P can NOT be maintained greater than 220 psid, THEN trip any running RCP.21 Check RCP Status-ANY RCP RUNNING Verify natural circulation (Refer to Attachment NC).IF natural circulation NOT verified, THEN increase dumping steam, EOP: P-ELEC.3 T!TLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV: 3 PAGE 14 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 22 Monitor RCS Temperature-STABLE OR DECREASING Control S/G ARVs to stabilize RCS temperature.
IF S/G ARVs do NOT provide adequate cooling, THEN perform the following:
a.Initiate S/G blowdown from both S/Gs.b.Maintain both S/G levels stable by controlling AFW flow.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)Start charging pumps as necessary.
2)Establish greater than 20 gpm charging line flow.b.Perform the following:
1)Close loop B cold leg to REGEN HxI 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.3 T1TLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV: 3 PAGE 15 of 20 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 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 CCV 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 EOP: P-ELEC.3 T1TLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV4 3 PAGE 16 of 20 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 IF PRZR heaters required, THEN 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 nec'essary.
c.Reset PRZR backup heater breaker and return to AUTO if necessary.
IF at least 100 kw of PRZR heaters can NOT be restored, THEN refer to ITS 3.4.9.NOTE: Check ITS section 3.8 for limiting conditions for operation.
26 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.1, RESTORATION OF OFFSITE'POWER)c.Verify all emergency AC bus normal feed breakers-CLOSED~Bus 14~Bus 16~Bus 17~Bus 18 a.Continue with Step 28.WHEN offsite power available, THEN do Steps 26b, c, d and 27.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.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV 3 PAGE 17 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 27 Check If An RCP Should Be Started: a.Check the following:
o Both RCPs-OFF a.Go to Step 28.o RCP operation-.DESIRED~b.RCS pressure-APPROXIMATELY 325 PSIG c.Check PRZR level-LESS THAN 38%d.Try to start an RCP 1)Establish conditions for starting an RCP a)Bus llA or 11B energized b)Refer to Attachment RCP START b.Control PRZR heaters and/or charging pump speed as necessary to restore RCS pressure.c.Verify S/G temperature (obtained locally in CNMT at S/G handhole)less tha'n RCS cold leg temperature.
IF NOT, THEN go to Step 28.d.IF an RCP can NOT be started, THEN continue to monitor natural circulation conditions (Refer to Attachment NC),.2)Start one RCP 28 Check RCS Temperature-STABLE OR DECREASING Adjust RCS cooling as necessary.
~S/G steaming~S/G feeding~RHR cooling EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV'PAGE 18 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 29 Establish Normal Shutdown Alignment:
a, Verify turning gear oil pump-RUNNING a.IF turbine oil system operation required, THEN perform the following:
1)Manually start turning gear oil pump (42 kw).2)Dispatch AO to place turbine on turning gear if desired.b.Verify main generator-DEPRESSURIZED b.Perform the following:
1)Manually start the HP seal oil backup pump 2)Dispatch AO to locally perform the following:
o Verify proper operation of the seal oil system (Refer to T-34B, GENERATOR SEAL OIL SYSTEM NORMAL OPERATION).
o Ensure bearing drain vapor extractor running.c.Check RCS temperature
-LESS THAN 135'F o Ensure main lube oil reservoir vapor extractor running.c.Perform the following:
1)Ensure one Rx compartment cooling fan running (23 kw).d.Dispatch AO to start waste gas compressor as necessary 2)Ensure one control rod shroud fan running (45 kw).
EOP: P-ELEC.3 T!TLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV 3 PAGE 19 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 30 Restore Equipment Alignment:
a.Verify at least 1 CNMT recirc fan-RUNNING b.Verify annunciator L-l, AUX BLDG VENT SYSTEM CONTROL PANEL-EXTINGUISHED c.Check radiation monitoring systems: o CNMT vent sample pump RUNNING o Plant vent sample pump RUNNING o All area and process monitors operating as required d.Verify service air compressor-RUNNING e.Verify motor fire pump breaker-CLOSED a.Start CNMT recirc fans as necessary (240 kw each).b.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)c.Perform the following:
1)Restore sample pumps and radiation monitors as necessary.
2)Restart CNMT purge or mini-purge if desired.d.Dispatch AO to locally start service air compressor if desired.P e.Close motor fire pump breaker.f.Check control board annunciator panels-ALARM STATUS VALID FOR PLANT CONDITIONS f.Perform alarm response procedures for unexpected alarms.g.Verify control board valve alignment-NORMAL (Refer to 0-6.13, DAILY SURVEILLANCE LOG)g.Manually align valves as necessary.
EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV: 3 PAGE 20 of 20 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 31 Check Status Of DC System Loads: a.Verify emergency DC lube oil pump-OFF b.Verify TDAFW pump DC oil pump-OFF c.Verify both MFW pump DC oil pumps-OFF a.Manually stop emergency DC lube oil pump, b.Perform the following:
1)Ensure TDAFW AC oil pump running.2)Stop TDAFW pump DC oil pump.c.Stop MFW pump DC oil pumps.32 Verify Offsite Power-RESTORED Continue attempts to restore offsite power (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER).33 Notify Higher Supervision NOTE: Refer to 0-9.3, NRC IMMEDIATE NOTIFICATION, for reporting requirements.
34 Return To Procedure Or Guidance.In Effect-END-
EOP: P-ELEC.3 TITLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV: 3 PAGE 1 of 1 AP-ELEC.3 APPENDIX LIST TITLE 1)FIGURE MIN SUBCOOLING 2)ATTACHMENT RCP START 3)ATTACHMENT NC 4)ATTACHMENT D/G STOP PAGES
EOP: P-ELEC.3 T!TLE: LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350'F)REV: 3 PAGE 1 of 1 FIGURE'MIN SUBCOOLING NOTE: Subcooling Margin=Saturation Temperature From Figure Below t'-]Core Exit T/C Indication RC 2500 2400 2300 2200 2100 2000 1900 1800 1700 1600 1400 1300 1200 1100 1000 900'00 700 600 500 400 300 200 100 0 S PRESSURE (PSIG).RCS PRESSURE INCREMENTS 20 PSIG SUBCOOLED REGION ADV E CNM ERS NORMAL CNMT INADEQUATE SUBCOOL ING REGION TEMPERATURE INCREMENTS 10'F 200 250 300 350 400 450 500 550 600 650 700 CORE EXIT SATURATION TEMPERATURE
('F)