ML17263A304: Difference between revisions
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REV 7 P-TURB;1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 3 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED | REV 7 P-TURB;1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 3 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION IF, AT ANY TIME DURING THIS PROCEDURE, A REACTOR TRIP OR SI OCCURS, E-O, REACTOR TRIP OR SAFETY INJECTION, SHALL BE PERFORMED. | ||
1 Verify Turbine Stop Valves Manually trip turbine. | 1 Verify Turbine Stop Valves Manually trip turbine. | ||
CLOSED IF turbine stop valves can NOT be closed, THEN close both MSIVs. | CLOSED IF turbine stop valves can NOT be closed, THEN close both MSIVs. | ||
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REV: 7 P-'TURB; 1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 4 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED | REV: 7 P-'TURB; 1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 4 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION PRZR PRESSURE LOW PRESSURE TRIP IS RATE SENSITIVE, THEREFORE, MONITOR PRESSURE WHEN REDUCING RCS TEMPERATURE. | ||
CAUTION PRZR PRESSURE LOW PRESSURE TRIP IS RATE SENSITIVE, THEREFORE, MONITOR PRESSURE WHEN REDUCING RCS TEMPERATURE. | |||
NOTE: Automatic rod control is desired, if available. | NOTE: Automatic rod control is desired, if available. | ||
2 Check Reactor, Power: | 2 Check Reactor, Power: | ||
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REV 7 P-WRB:1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 9 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED | REV 7 P-WRB:1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 9 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION IF ANY S/G LEVEL ABOVE PROGRAM, THEN AFW FLOW MAY BE THROTTLED IMMEDIATELYTO PREVENT S/G ISOLATION. | ||
CAUTION IF ANY S/G LEVEL ABOVE PROGRAM, THEN AFW FLOW MAY BE THROTTLED IMMEDIATELYTO PREVENT S/G ISOLATION. | |||
NOTE: Maintain Reactor power less than 2%. This is within the capacity of MDAFW pumps. | NOTE: Maintain Reactor power less than 2%. This is within the capacity of MDAFW pumps. | ||
9 Check S/G Feed Flow Status: | 9 Check S/G Feed Flow Status: | ||
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REV: 7 P~ TURB." 1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 10 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED | REV: 7 P~ TURB." 1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 10 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION WHEN FEEDING BOTH S/G(S) USING ONE MDAFW PUMP, THEN THE SUM OF THE FLOWS TO BOTH S/G(S) MUST BE LESS THAN 230 GPM. | ||
CAUTION WHEN FEEDING BOTH S/G(S) USING ONE MDAFW PUMP, THEN THE SUM OF THE FLOWS TO BOTH S/G(S) MUST BE LESS THAN 230 GPM. | |||
10 Establish Normal AFW Pump Shutdown Alignment: | 10 Establish Normal AFW Pump Shutdown Alignment: | ||
: a. Place AFW bypass switches to DEF | : a. Place AFW bypass switches to DEF |
Latest revision as of 10:36, 4 February 2020
ML17263A304 | |
Person / Time | |
---|---|
Site: | Ginna ![]() |
Issue date: | 05/07/1993 |
From: | Marlow T ROCHESTER GAS & ELECTRIC CORP. |
To: | |
Shared Package | |
ML17263A305 | List: |
References | |
AP-TURB.1, NUDOCS 9306040151 | |
Download: ML17263A304 (19) | |
Text
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REV: 7 P-TURB.1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 1 of 12 ROCHESTER GAS AND ELECTRIC ORPORATION GINNA STAT ON CONTROLLED COPY BER TECHNICAL REVIEW PORC VIEW DATE P T SUPERINTENDENT EFF TIVE DATE CAT G RY 1.0 REVIEWED BY:
9306040i5i 930524 PDR ADQCK 05000244 P PDR L
\~
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REV 7 P-TURB.'1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 2 of 12 A. PURPOSE - This procedure provides the necessary instructions to control the plant following a turbine trip without a reactor trip required.
B. ENTRY CONDITIONS/SYMPTOMS
- 1. ENTRY CONDITIONS This procedure is entered from:
- a. AP-CW.1, LOSS OF A CIRC WATER PUMP, or,
- b. AP-ELEC.l, LOSS OF 12A AND/OR 12B TRANSFORMER, or, c ~ I I AP FW 1 g PART AL OR COMPLETE LOSS OF MA N FEE DWATER g or,
- d. AP-TURB.2, AUTOMATIC TURBINE RUNBACK, or,
- e. AP-TURB.3, TURBINE VIBRATIONS, or,
- f. AP-TURB.4, LOSS OF CONDENSER VACUUM, when power is less than P-9 and the turbine trips without a Rx trip.
- 2. SYMPTOMS The symptoms of TURBINE TRIP WITHOUT RX TRIP REQUIRED are:
a ~ Annunciator K-l, THRUST BEARING FAILURE, lit, or
- b. Annunciator K-9, TURBINE BEARING OIL LO PRESS TRIP 6 psi, lit, or c Annunciator K-17, TURBINE LOW VACUUM TRIP 20" HG,
~
lit, or
- d. Annunciator K-18, MAIN FEEDWATER PUMPS TRIPPED, lit, or
- e. Annunciator K-26, GENERATOR LOCKOUT RELAY, lit, or Annunciator K-25, TURBINE OVERSPEED ALERT 1980 RPM, lit, or gi Annunciator F-21, 20" CIRC WTR PMPS, lit, or HI PRESS COND HG OR LOSS OF BOTH
- h. Annunciator K-3, AMSAC ACTUATED, lit.
~l T
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REV 7 P-TURB;1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 3 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION IF, AT ANY TIME DURING THIS PROCEDURE, A REACTOR TRIP OR SI OCCURS, E-O, REACTOR TRIP OR SAFETY INJECTION, SHALL BE PERFORMED.
1 Verify Turbine Stop Valves Manually trip turbine.
CLOSED IF turbine stop valves can NOT be closed, THEN close both MSIVs.
IF reactor power greater than 8%
with both MSIVs closed, THEN manually trip the reactor and go to E-O, REACTOR TRIP OR SAFETY INJECTION.
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REV: 7 P-'TURB; 1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 4 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION PRZR PRESSURE LOW PRESSURE TRIP IS RATE SENSITIVE, THEREFORE, MONITOR PRESSURE WHEN REDUCING RCS TEMPERATURE.
NOTE: Automatic rod control is desired, if available.
2 Check Reactor, Power:
- a. NIS intermediate ranges - ABOVE a. Go to Step 3.
THE POINT OF ADDING HEAT (APPROXIMATELY 2.5xlO 6 AMPS)
- b. Verify control rods driving in b. Perform the following:
to reduce reactor power in AUTO l) Ensure ROD CONTROL BANK SELECTOR switch to MANUAL
- 2) Insert rods as necessary to reduce reactor power.
- c. Borate as necessary to maintain control rods above rod insertion limits
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REV: 7 P-TURB;1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 5 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 3 Monitor S/G Levels:
- a. Levels - GREATER THAN 30% OR a. IF MFW regulating and bypass INCREASING valves NOT controlling in AUTO, THEN place controllers in MANUAL and restore narrow range level to program.
IF S/G level can NOT be restored, THEN trip the reactor and go to E-O, REACTOR TRIP OR SAFETY INJECTION.
- b. Levels - TRENDING TO PROGRAM b. IF S/G level above program and increasing uncontrolled, THEN place controller(s) in MANUAL and decrease flow as necessary.
IF flow can NOT be controlled, THEN perform the following:
l) Trip the reactor.
- 2) Stop the running MFW pump.
- 3) Close MFW pump discharge valves.
- 4) Go to E-O, REACTOR TRIP OR SAFETY INJECTION.
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REV: 7 P.~TURB; 1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 6 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 4 Verify Proper Operation Of Steam Dump:
- a. Verify annunciator G-15, STEAM a. Place steam dump mode selector DUMP ARMED - LIT switch to MANUAL.
- b. Condenser steam dump operating b. IF steam dump NOT available, in AUTO THEN perform the following:
- 1) Adjust S/G ARV setpoints to 1005 psig and verify proper operation.
- 2) IF power is greater than 8%,
THEN ensure reactor trip and go to E-O, REACTOR TRIP OR SAFETY INJECTION.
- c. Tavg - TRENDING TO PROGRAM c. IF Tavg can NOT be controlled, THEN manually trip the reactor and go to E-O, REACTOR TRIP OR SAFETY INJECTION.
5 Check PRZR Pressure IF PRZR pressure can NOT be TRENDING TO 2235 PSIG controlled, THEN refer to AP-PRZR.1, ABNORMAL PRESSURIZER PRESSURE.
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REV: 7 P-TURB;1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 7 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 6 Check PRZR Level:
- a. Level - GREATER THAN 13% a. Perform the following:
- 1) Place loop B cold leg isolation valve to REGEN Hx (AOV-427) switch to CLOSE.
- 2) Place letdown orifice valve switches to CLOSE (AOV-200A, AOV-200B, and AOV-202).
- 3) Verify excess letdown isolation valve (AOV-310) closed.
- 4) Ensure PRZR heaters off.
- 5) Control charging to restore PRZR level greater than 13%.
- 6) WHEN PRZR level greater than 13%, THEN restore letdown.
- b. Level - TRENDING TO PROGRAM 'b. Increase charging flow as necessary to restore PRZR level to program.
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REV 7 P-TURB;1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 8 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 7 Check MFW System:
- a. Verify MFW regulating and bypass a. Place MFW regulating and bypass valves - OPERATING IN AUTO valve controllers in MANUAL and restore S/G level.
- b. MFW pumps - BOTH RUNNING b. Perform the following:
- 1) Verify one MFW pump running.
IF NOT, THEN verify both MDAFW pumps running.
- 2) Go to Step 8.
- c. Close one MFW pump discharge valve
- d. Stop selected MFW pump 8 Establish Stable Plant Conditions:
- a. Place rod control bank selector in MANUAL
- b. NIS intermediate ranges - BELOW b. Return to Step 2.
THE POINT OF ADDING HEAT (APPROXIMATELY 2.5x10 AMPS)
- d. PRZR level - TRENDING TO PROGRAM d. Control charging as necessary.
- e. S/G levels - TRENDING TO PROGRAM e. Control S/G feed flow as necessary.
- f. RCS Tavg - GREATER THAN 540'F f. Control dumping steam as necessary. IF cooldown continues, THEN close both MSIVs.
~ ~
A
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REV 7 P-WRB:1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 9 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION IF ANY S/G LEVEL ABOVE PROGRAM, THEN AFW FLOW MAY BE THROTTLED IMMEDIATELYTO PREVENT S/G ISOLATION.
NOTE: Maintain Reactor power less than 2%. This is within the capacity of MDAFW pumps.
9 Check S/G Feed Flow Status:
- a. Manually start both MDAFW pumps
- b. Verify AFW flow - ESTABLISHED b. Perform the following:
IF MFW NOT available, THEN manually start TDAFW pump and establish flow as necessary.
- 2) Go to Step 10.
- c. Verify MFW flow control valves c. Place A and B MFW regulating and CLOSED bypass valve controllers in manual at 0% demand.
~ MFW regulating valves
~ MFW bypass valves
- d. Close MFW pump discharge valves
~ MOV-3977, A MFW pump
~ MOV~976, B MFW pump
- e. Stop any running MFW pump and place in PULL STOP
- f. Check S/G level - TRENDING TO 39% f. Adjust MDAFW pump flow as necessary to restore S/G level.
4
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REV: 7 P~ TURB." 1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 10 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION WHEN FEEDING BOTH S/G(S) USING ONE MDAFW PUMP, THEN THE SUM OF THE FLOWS TO BOTH S/G(S) MUST BE LESS THAN 230 GPM.
10 Establish Normal AFW Pump Shutdown Alignment:
- b. Verify the following: b. Continue with Step ll. WHEN conditions met, THEN do Steps o Both S/G levels - STABLE OR 10c through f.
INCREASING o Total AFW flow - LESS THAN 200 GPM
- c. Close MDAFW pump discharge valves
~ MOV-4007
~ MOV-4008
- d. Stop all but one MDAFW pump
- e. Open AFW discharge crossover valves
~ MOV-4000A
~ MOV-4000B
- f. Open AFW bypass valves as necessary to control S/G levels
~ AOV-4480
~ AOV-4481
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REV: 7 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 11 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 11 Establish Normal Shutdown Alignment:
- a. Check condenser - AVAILABLE a. Dispatch AO to perform Attachment SD-2.
- b. Perform the following as necessary:
o Open generator disconnects
~ 1G13A71
~ 9X13A73 o Place voltage regulator to OFF o Open turbine drain valves o Rotate reheater steam supply controller cern to close valves o Place reheater dump valve switches to HAND o Stop all but one condensate pump
- c. Verify Bus llA and Bus llB c. IF either bus NOT energized, energized - BOTH BUSSES GREATER THEN refer to 0-6.9.2, THAN 4 KV ESTABLISHING AND/OR TRANSFERRING OFFSITE POWER TO BUS 12A/
BUS 12B.
- d. Dispatch AO to perform Attachment SD-1
('
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II REV 7 PERTURB;1 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 12 of 12 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: Refer to 0-9.3, NRC IMMEDIATE NOTIFICATION, for reporting requirements.
12 Notify Higher Supervision 13 Establish Desired Plant Conditions:
- a. Reactor shutdown - DESIRED a. IF turbine is to be restored to service, THEN maintain reactor critical and refer to 0-1.2, PLANT FROM HOT SHUTDOWN TO STEADY LOAD.
- b. Refer to 0-2.1, NORMAL SHUTDOWN TO HOT SHUTDOWN
-END-
0 ~J 0
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REV: 7 TURBINE TRIP WITHOUT RX TRIP REQUIRED PAGE 1 of 1 AP-TURB.1 APPENDIX LIST TITLE PAGES
- 1) ATTACHMENT SD-1
- 2) ATTACHMENT SD-2