LR-N10-0355, Hope Creek, HC.OP-AB.RPV-0003(Q), Rev. 21, Recirculation System/Power Oscillations
| ML110050506 | |
| Person / Time | |
|---|---|
| Site: | Salem, Hope Creek  |
| Issue date: | 04/21/2010 |
| From: | Public Service Enterprise Group |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| LR-N10-0355 HC.OP-AB.RPV-0003(Q), Rev 21 | |
| Download: ML110050506 (40) | |
Text
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 1 of 39 Rev. 21 Effective Date: 4/21/10 CATEGORY II ALARMS REACTOR RECIRC A TROUBLE C1-D4 REACTOR RECIRC B TROUBLE C1-D5 REACTOR RECIRC PUMPS TRIP C1-D3 REACTOR RECIRC PUMP VIB HI C1-E4 COMPUTER POINT IN ALARM C1-F5 LPRM UPSCALE C3-D5 LPRM DOWNSCALE C3-E5 OPRM TRIP ENABLE C3-F1 OPRM ALARM C3-F2 OPRM TRIP BYP/INOP/TRBL C3-F3 OPRM TRIP C5-B1 INDICATIONS Unexplained Change in: Recirculation Pump Flow, Rx Water Level, Rx Power, ,Rx Recirc Pump Seal Performance. Trip of EITHER Recirc Pump as indicated by: Recirc Pump RPT Breaker OPEN, Recirc Drive Motor Breaker OPEN, Recirc MG Field Breaker OPEN. The indicated Recirculation loop flow differs by more than 10% from the established pump speed-loop flow characteristics, 10% from the established total core flow value derived fr om Recirculation loop flow. The indicated diffuser-to-lower plenum differential pressure of any individual jet pump differs from the established patterns by more than 20%. Recirculation Pump Vibration Levels Rising APRM OR LPRM power oscillations An OPRM Channel indicates a trip or alarming condition Short Period alarms/ Positive and negative swings on the period meter Recirc Pump seal cavity temperatur e greater than 150 degrees F (A2998, A2999, A3008, A3009)
Recirc Pump #2 seal cavity pressure less than 200 psig or greater than 800 psig. (A2590, A2592)
TERMINATED Date/Time:
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 2 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A NOTES: 1. Figure 1 "POWER TO FLOW MAP (OPRM IN OPERABLE)" is required to be utilized as part of an alternate method to detect and suppre ss thermal hydraulic instability oscillations to comply with T/S 3.3.11 action a.3 or b.1.
ADDITIONAL INFORMATION
- REFER to Attachment 4 for POWER TO FLOW MAP Power Oscillations (Thermal Hydraulic Instabilit ies) are defined as any of the following: 10% peak to peak Power Oscillations on APRM Recorders Periodic Upscale OR Downscale LPRM Alarms (on the Full Core Display) Strong positive/negative swings on the Period Meters PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 3 of 39 Rev. 21 IMMEDIATE OPERATOR ACTIONS CONDITION ACTION No Recirc. Pumps running AND Reactor is Critical
[CD-354F] Date/Time:
___LOCK the Mode Switch in SHUTDOWN.
Indications of Power Oscillations (Thermal Hydraulic Instability)
Date/Time:
___LOCK the Mode Switch in SHUTDOWN.
[CD354F] **NOTE 1** OPRM's INOPERABLE AND in REGION 1 of Figure 1
Date/Time:
___LOCK the Mode Switch in SHUTDOWN.
AUTOMATIC ACTIONS IF THEN OPRM TRIP Half or Full Scram
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 4 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 5 of 39 Rev. 21 LIST OF CONDITIONS A. Single Reactor Reci rc Pump Tripped...........................................................................7 B. Unplanned entry resulting in Reactor Power 26.1% AND Core Flow 68%.................................................................................................7 C. Fluctuating Reactor Re circulation Pu mp Speed........................................................
13 D. Reactor Recirc Pump Seal Degradation is detected..................................................15 E. Multiple seal failure of a Recircul ation Pump.............................................................15 F. Recirc Pump Vi bration Alarm.....................................................................................17 G. BOTH Recirculation Pumps TRIPPED AND Potential exists for T hermal Strati fication..........................................................19 H. Recirculation Flow cannot be Restored AND There is potential for vessel Thermal Stratification AND HPCI, RCIC, and Feedwater are not needed for RPV level or pressure control........................................................................................................................
23 I. Suspected Jet Pump Failure......................................................................................25 J. Reactor is Sub-Critical AND No Recirc. Pumps running................................................................................25 K. Any Recirc Pump Seal Cavity temperature >150F OR Indication of an adverse trend .........................................................................................................................
27 PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 6 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A CAUTIONS: 1. With the operable loop drive flow near 23 Kgpm (48% Pump Speed), the flow through the idle loop is close to zero and will swap back and forth between forward and reverse flow. Operation in this region can cause excessive Jet Pump
vibration and the potential for consequent stress fatigue of the riser brace welds to the vessel. Operation near this value should be minimized.
NOTES: 2. Core Flow 40% during single loop operation prevents excessive cool down of the idle loop. 13. IfWTFLAG = 1 or 2, AND the operable loop drive flow 23 Kgpm (48% Pump Speed), the PPC WT (Core Flow) will not be accurate.
In this case, add the Jet Pump Loop Flows to determine WT.
If WTFLAG = 3, WT is calculated from the core plate DP and is accurate.
If WTFLAG = 4, WT is calculated from the recirculation drive flows and is accurate.
ADDITIONAL INFORMATION
- Procedures: HC.OP-DL.ZZ-0026(Q), Surveillance Log. HC.OP-IO.ZZ-0006(Q), POWER CHANGES DURING OPERATION. HC.SE-PR.ZZ-0003(Q), Thermal Cycle Monitoring.
Valves:
1-HV-F031A(B), Recirculation Pump Discharge Valve.
Indications:
1BBFR-R613-B21, Jet Pump Flow Recorder 1BBFI-R611A(B)-B21, Jet Pump Loop A(B) Flow PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 7 of 39 Rev. 21 SUBSEQUENT OPERATOR ACTIONS CONDITION ACTION ___ A.1 INSERT Control Rods to clear APRM Upscale Alarms.
___ A.2 CONTINUE actions in this condition while
monitoring for Power Oscillations.
___ A.3 ENSURE that the Recirc MG Drive Motor Breaker has TRIPPED for the tripped Pump.
___ A.4 CLOSE HV-F031A(B) for approximately 5 minutes, THEN RE-OPEN HV-F031A(B).
UNLESS isolated IAW condition E "Seal Failure"
[CD-976B]
___ CAUTION 1
___ A.5 IF Single Loop Operation WITH flow 23 Kgpm.
( 48% Pump Speed)
DETERMINE Actual Core Flow by Using Indication for Core Flow from the Jet Pump Flow Recorder. (FR-R613-B21)
___ **NOTE 13** ___ A.6 IF Single Loop Operation WITH flow < 23 Kgpm.
( 48% Pump Speed)
DETERMINE Actual Core Flow by ADDING the Idle Loop Jet Pump Flow AND the Operating Loop Jet Pump Flow. (FI-R611A-B21 and FI-R611B-B21)
___ A.7 IMPLEMENT DL.ZZ-0026 Att. 3v AND IO-6
Requirements for Single Loop operations.
___ **NOTE 2** A. Single Reactor Recirc Pump Tripped. [T/S 3.4.1.1]
[T/S 4.4.1.2]
Date/Time:
___ A.8 IF core flow cannot be raised to 40%, THEN DIRECT System Engineering to evaluate Single Loop operation IAW SE-PR.ZZ-0003.
[950919568]
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 8 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A CAUTIONS: 2. DO NOT intentionally enter the REGION 1 while changing power. Passing through this region or lowering flow once in REGION 1 is acceptable if the intent is to TAKE the Mode Switch to shutdown. [PR 971229163]
NOTES: 3. 68% core flow is the nominal value to enable the alarm. To ensure the OPRM enables during all conditions, e.g. SLO, the value has been set at 68% core flow. It is possible to receive the Trip Enable Alarm at a higher value, and may require up to 73% core flow to clear the alarm. 4. The OPRM ALARM overhead alarm (C3-F2) and associ ated CRIDS alarms will clear automatically when the condition clears. The OPRM Alarm LED on Local Panel 10C608 is a "lock in" indication and requires physically resetting when the condition clears.
- 14. IF in single loop operation, Steps A.5 and A.6 should be re ferred to for determination of actual core flow.
ADDITIONAL INFORMATION
- Indications: CRIDS PAGE 248 OPRM Alarm, Red LED @ Panel 10C608 Figure 2 - POWER TO FLOW MAP (OPRM OPERABLE)
Natural Circulation Line MELLLA Boundary Minimum Pump Speed Line Cavitation Line OPRM Enable Region Region 1 Power Oscillations (Thermal Hydraulic Instabilit ies) are defined as any of the following: 10% peak to peak Power Oscillations on APRM Recorders Periodic Upscale OR Downscale LPRM Alarms (on the Full Core Display) Strong positive/negative swi ngs on the Period Meters PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 9 of 39 Rev. 21 CONDITION ACTION ___ B.1 MONITOR for Power Oscillations. (Thermal Hydraulic Instabilities)
___ **NOTE 3** ___ B.2 VERIFY OPRM TRIP ENABLE (C3-F1) alarm.
___ **NOTE 14** ___ CAUTION 2 B.3 IF OPRM's are OPERABLE, THEN PERFORM the following:
___ A. IF in REGION 1 of Figure 2 THEN EXIT REGION 1 IAW Enhanced Stability Guidance. (RE.ZZ-0001)
B. IF OPRM ALARM (C3-F2) is received THEN PERFORM the following:
___ SUSPEND Control Rod withdrawal AND Recirculation Pump speed reduction.
___ IF applicable, CONTINUE operation WITH Enhanced Stability Guidance. (RE.ZZ-0001) ___ C. IF OPRM ALARM (C3-F2) will NOT remain Clear, OR MORE THAN one OPRM Channel has an "OPRM Alarm" (REFER to CRIDS Page 248)
THEN CONTINUE Rod insertion IAW Enhanced Stability Guidance UNTIL the alarm is clear. (RE.ZZ-0001)
___ **NOTE 4** ___ D. WHEN OPRM ALARM (C3-F2) is CLEAR, PRESS the OPRM LED reset
at Panel 10C608.
B. Unplanned entry resulting in Reactor
Power 26.1% AND Core Flow 68% (nominal).
Date/Time:
Continued on Page 11 Continued on Page 11
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 10 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A CAUTIONS: 3. DO NOT intentionally enter the REGION 1 or 2 while changing power. Passing through these regions or lowering flow once in REGION 2 is acceptable if the intent is to TAKE the Mode Switch to shutdown. [PR 971229163]
NOTES: 5. Figure 1 "POWER TO FLOW MAP (OPRM INOPER ABLE)" is required to be utilized as part of an alternate method to detect and suppress thermal hydraulic instability oscillations to comply with T/S 3.3.11 action a.3 or b.1.
ADDITIONAL INFORMATION
- Figure 1 - POWER TO FLOW MAP (OPRM INOPERABLE)
Natural Circulation Line MELLLA Boundary Minimum Pump Speed Line Cavitation Line Region 2 Region 1 Power Oscillations (Thermal Hydraulic Instabilities) are defined as any of the following: 10% peak to peak Power Oscillations on APRM Recorders Periodic Upscale OR Downscale LPRM Alarms (on the Full Core Display) Strong positive/negative swings on the Period Meters PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 11 of 39 Rev. 21 SUBSEQUENT OPERATOR ACTIONS (continued)
CONDITION ACTION Continued from Page 9
___ **NOTE 5** ___ CAUTION 3 B. Unplanned entry resulting in Reactor Power 26.1% AND Core Flow 68% (nominal).
Date/Time:
Continued from Page 9
___ B.4IF OPRM's are INOPERABLE, AND in REGION 2 of Figure 1, THEN EXIT REGION 2 IAW Enhanced Stability Guidance. (RE.ZZ-0001)
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 12 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A CAUTIONS: 4. Recirculation MG Set/Pump Speed Fluctuations have been identified during Power Ascension. Operations at these speeds may result in speed Fluctuations of 4 - 10%. Operation at these speeds should be minimized and may not warrant actions IAW with this
procedure 1AP201 RPM 1AG122 %SPEED 1BP201 RPM 1BG122 %SPEED 538 32% 470 28% 890 53% 890 53%
ADDITIONAL INFORMATION
- Procedures: HC.OP-SO.BB-0002(Q), REACTOR RECIRCULATION SYSTEM OPERATION REFER to Attachment 4 for POWER TO FLOW MAP Power oscillations (Thermal Hydraulic Instabilities) are defined as any of the following: 10% peak to peak Power Oscillations on APRM Recorders Periodic Upscale OR Downscale LPRM Alarms (on the Full Core Display) Strong positive/negative swings on the Period Meters PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 13 of 39 Rev. 21 SUBSEQUENT OPERATOR ACTIONS CONDITION ACTION ___ CAUTION 4
___ C.1 PLACE the affected Reactor Recirc Pump in MANUAL AND ADJUST to STABILIZE pump speed. C.2 IF Recirc Pump speed fluctuations continue, PERFORM the following:
___ A. PRESS SCOOP TUBE TRIP A(B)
Pushbutton.
___ B. ENSURE SCOOP TUBE LOCKUP light comes on for the desired
Motor/Generator. C. Fluctuating Reactor Recirculation Pump Speed.
Date/Time:
___ C. REFER to SO.BB-0002(Q) for continued operation with a Scoop Tube Lock Up.
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 14 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A NOTES: 6. A Recirc Pump can be confirmed to be stopped by referencing A(B) Flow FI-R617(R613) and D/P PDI-R612A(B) indications.
ADDITIONAL INFORMATION
- Procedures: HC.OP-DL.ZZ-0026(Q), Surveillance Log. HC.OP-IO.ZZ-0006(Q), POWER CHANGES DURING OPERATION. HC.SE-PR.ZZ-0003(Q), Thermal Cycle Monitoring.
Valves:
1-HV-F023A(B), RECIRCULATION PUMP SUCTION VALVE. 1-BF-HV3800A(B), Recirc. Pump Seal Purge Valve. 1-BG-HV-F100, RWCU SUCT FROM RECIRC LOOP "A". 1-BG-HV- F106, RWCU SUCT from Recirc Loop "B". 1-HV-F031A(B), Recirculation Pump Discharge Valve.
References:
Basis for Action D; DCRMS\Records Management\Doc. ID: 80098244 PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 15 of 39 Rev. 21 SUBSEQUENT OPERATOR ACTIONS (continued)
CONDITION ACTION ___ D.1 MONITOR seal parameters every 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, to DETERMINE the severity of degradation.
___ D.2 IF Recirc Pump seal cavity temperature >180 F, REDUCE the affect Recirc pump speed as necessary to reduce seal cavity temperature to
<180 F. D.3 IF NO.2 SEAL CAVITY PRESS (CRIDS or local) < 200 psig OR
> 800 psig OR ANY of the following CRID's points are in alarm D2924/D2926/ D2925/ D2927 THEN NOTIFY the following:
___ Site Vice President - Hope Creek
___ Plant Manager - Hope Creek
___ Hope Creek Operations Manager D. Reactor Recirc Pump Seal Degradation is detected.
Date/Time:
[PR 970630153]
___ Hope Creek System Engineering Manager
___ E.1 PRESS The Pump A(B) MOTOR BRKR TRIP
PB. ___ E.2 CONTINUE actions in this condition while
monitoring for Power Oscillations IAW
Condition B.
___ **NOTE 6** ___ E.3 WHEN the PUMP has stopped, PRESS the CLOSE PB on HV-F023A(B).
E.4 CLOSE the following:
___ BF-HV3800A(B).
___ BG-HV-F100(F106).
___ E.5 ENSURE HV-F023A(B) is CLOSED.
___ E.6 CLOSE HV-F031A(B). E. Multiple seal failure of a Recirculation Pump.
Date/Time:
[CD-813E, CD-184B, CD-219B] ___ E.7 ENTER AND COMPLETE condition "A" PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 16 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A CAUTIONS: 5. DO NOT intentionally enter the Power Oscillation regions (region 1 or 2) while changing power. Passing through these regions or lowering flow once in these regions is acceptable if the intent is to TAKE the Mode Switch to shutdown. [PR 971229163] 6. After the affected pump speed reduction, flow mismatch requirements should be evaluated, and compliance with T/S 3.4.1.3 ENSURED.
NOTES: 7. If the affected Recirculation Pump is operating in a critical speed band with a speed change in progress and continuing the speed change clears the Table 2 alarm condition, no further action in this procedure is required. 8. The following guidance applies to the Radial PMP, Radial MTR ALERT/DANGER alarm setpoints and digital points listed in Table 2 only. This guidance does not apply to Gap Voltage which also
causes REACTOR RECIRC PUMP VIB HI C1-E4 to annunciate
OR spurious vibration alarms/indications.
ADDITIONAL INFORMATION
- Procedures: HC.OP-SO.BB-0002(Q), Reactor Recirculation System Operation HC.ER-AP.BB-0001(Q), HOPE CREEK REACTOR RECIRCULATION PUMPS/MOTORS VIBRATION MONITORING HC.OP-IO.ZZ-0006(Q), Power Changes During Operation Valves/Breakers/Controllers: SIC-R621A(B) PUMP A(B) Speed Controller Cabinet 1B-C374 - TSI Vibration (Bentley Nevada 3500) System cabinet Indications: REACTOR RECIRC PUMP VIB HI C1-E4 CRIDS PAGE 85 REAC RECIRC PUMP A AND B Table 2 Vibration Point ALERT Limit DANGER Limit A2601 - Radial PMP 11.0 mils 16.0 mils A Recirc Pump A2602 - Radial MTR 3.0 mils 4.5 mils A2603 - Radial PMP 11.0 mils 16.0 mils B Recirc Pump A2604 - Radial MTR 6.0 mils 8.0 mils PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 17 of 39 Rev. 21 SUBSEQUENT OPERATOR ACTIONS (continued)
CONDITION ACTION **NOTE 7** F.1PRIOR to REDUCING Recirc Pump Speed, PERFORM the following:
A. ENSURE the following controllers are in MANUAL:
___ SIC-R621A PUMP A SPD CONT
___ SIC-R621B PUMP B SPD CONT F.2 EVALUATE the following Recirc Pump parameters for degradation of the pump(s) in ALARM to validate the
condition.
___ Seal Parameters (Temperature, Pressure, Flow)
___ Pump Parameters (Temperature, Vibration)
___ Motor Parameters (Temperature, Vibration)
___ F.3 REQUEST SM/CRS to contact the Engineering Duty Manager to obtain AND assess vibration data.
___ **NOTE 8** ___ CAUTION 5 F.4 MAINTAIN A(B) Recirc Pump Vibration points below the DANGER limit as follows:
[REFER to Table 2]
___ INTERMITTENTLY PRESS SIC-R621A(B)
PUMP A(B) SPD CONT DECREASE push button.
___ INSERT Control Rods as required by Reactor Engineering Instructions.
___ CAUTION 6
___ F.5IF A(B) Recirc Pump Vibration points cannot be maintained below the DANGER limit
[REFER to Table 2]
THEN PERFORM the following to remove A(B) Recirc Pump from service:
___ A. PRESS SIC-R621A(B) PUMP A(B) SPD CONT DECREASE push button UNTIL minimum speed is reached.
___ B. PRESS PUMP A(B) MOTOR BRKR TRIP push
button. F. Recirc Pump Vibration Alarm [T/S 3/4.4.1.1,3/4.4.1.3]
Date/Time:
___ C. ENTER and complete condition "A"
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 18 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A NOTES: 9. The following steps are utilized to place one Reactor Recirculation Pump in service to prevent thermal stratification from occurring.
ADDITIONAL INFORMATION
- Procedures: HC.OP-IO.ZZ-0006(Q), Power Changes During Operation HC.OP-SO.BG-0001(Q), Reactor Water Cleanup System Operation HC.OP-SO.SA-0001(Q), REDUNDANT REACTIVITY CONTROL SYSTEM OPERATION Valves/Breakers/Controllers: SIC-R621A(B) PUMP A(B) Speed Controller BB-HV-F023A(B) A(B) Recirc Pump Suction Valve BG-HV-F100(F106) A(B) RWCU Suction Valve SIC-R621A(B) PUMP A(B) Speed Controller SIC-R620 Master Speed Controller 1-HV-F031A(B), Recirculation Pump Discharge Valve Recirc Pump Trip System A(B) Disable Keylock at 10C609(10C611)
EOC Recirc Pump Trip AP201 Pump Motor Breakers 1AN205 AND 1CN205 EOC Recirc Pump Trip BP201 Pump Motor Breakers 1BN205 AND 1DN205 Indications:
REACTOR RECIRC A(B) TROUBLE C1-D4 (D5)
A2856, RWCU SYS OUTLET FLOW TO FDW 1BBTI-8291A(B) MG SET HYD Oil CLR A(B) Inlet Temperature TABLE 1 RACS is in service to supply cooling water to Reactor Recirc Pump Motor Oil Coolers.
SACS is in service to supply cooling to MG Set hydraulic oil cooler.
Chilled Water System OR RACS is in service to supply cooling water to Reactor Recirc Pump Motor Winding Coolers Motor Generator Ventilation System is in service.
CRD Hydraulic System is in service to supply seal purge water to Reactor Recirc Pumps.
Recirculation System Motor Generator A(B) Lube Oil System is in operation.
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 19 of 39 Rev. 21 SUBSEQUENT OPERATOR ACTIONS (continued)
CONDITION ACTION **NOTE 9** ___ G.1 ENSURE BOTH Reactor Recirculation Pump A AND B Motor Breakers TRIPPED.
___ G.2 ENSURE systems in-service as described in Table 1. ___ G.3 ENSURE RWCU is in service.
(REFER to Attachment 3 for placing RWCU in service.)
___ G.4 VERIFY BB-HV-F023A(B)
AND BG-HV-F100(F106) are OPEN.
___ G.5 VERIFY that PUMP A(B) LOCKOUT BUS POWER AVAILABLE light is illuminated.
___ G.6 VERIFY Reactor Recirc A(B) Trouble Alarm CLEAR. G.7 ENSURE the following controllers are in MANUAL AND at their MINIMUM setpoints:
___ SIC-R621A(B) PUMP A SPD CONT
___ SIC-R620 MASTER SPD CONT G. BOTH Recirculation Pumps TRIPPED
AND Potential exists for
Thermal Stratification
Date/Time:
Continued on Page 21 Continued on Page 21
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 20 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A NOTES: 10. Normal Recirculation Set MG Lube Oil Temperature Band is 110 to 130°F, however 80-140°F is allowable for start up.
ADDITIONAL INFORMATION
- Procedures: HC.OP-IO.ZZ-0006(Q), Power Changes During Operation HC.OP-SO.BG-0001(Q), Reactor Wa ter Cleanup System Operation HC.OP-SO.SA-0001(Q), REDUNDANT REACTIVITY CONTROL SYSTEM OPERATION Valves/Breakers/Controllers:
1-HV-F031A(B), Recirculation Pump Discharge Valve Recirc Pump Trip System A(B)
Disable Keylock at 10C609(10C611) EOC Recirc Pump Trip AP201 Pump Motor Breakers 1AN205 AND 1CN205 EOC Recirc Pump Trip BP201 Pump Motor Breakers 1BN205 AND 1DN205 Indications:
REACTOR RECIRC A(B) TROUBLE C1-D4 (D5) D2915 (D2916) Recirc MG A(B) Drive Lube Oil Pressure 1BBTI-8291A(B) MG SET HYD Oil CLR A(B) Inlet Temperature TABLE 1 RACS is in service to supply cooling water to Reactor Recirc Pump Motor Oil Coolers.
SACS is in service to supply cooling to MG Set hydraulic oil cooler.
Chilled Water System OR RACS is in service to supply cooling wa ter to Reactor Recirc Pump Motor Winding Coolers Motor Generator Ventilation System is in service.
CRD Hydraulic System is in service to supply seal purge water to Reactor Recirc Pumps.
Recirculation System Motor Generator A(B) Lube Oil System is in operation.
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 21 of 39 Rev. 21 SUBSEQUENT OPERATOR ACTIONS (continued)
CONDITION ACTION Continued from Page 19 G.8 ENSURE the following: ___ A. D2915 (D2916) not in alarm.
___ **NOTE 10** ___ B. MG Set Lube Oil Temperature 80-140°F. ___ C. High Vibration Trip RESET. ___ D. Scoop Tube Lock Up RESET. ___ G.9 IF required, THEN RESET RRCS. (SA)
G.10 ENSURE the following switches are in BYP:
___ C71A-S12A, RECIRC PUMP TRIP BYPASS DISABLE SYSTEM "A"
___ C71A-S12B, RECIRC PUMP TRIP BYPASS DISABLE SYSTEM "B"
___ G.11 ENSURE EOC RPT Breakers are CLOSED. G. BOTH Recirculation Pumps TRIPPED AND Potential exists for
Thermal Stratification Continued from Page 19 Continued on Page 23
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 22 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A CAUTIONS: 8. Reactor Coolant System pressure and te mperature limits of Tech Spec. 3.4.6.1 should be observed. 9. Step H.1 supplements the level and thermal stratification direction of HC.OP-AB.ZZ-0000 (Q) REACTOR SCRAM.
NOTES: 11. The next step will start the respective Motor Generator Set and Recirculation Pump.
The following should be observed to occur after starting: A. Recirc Pump A(B) drive motor ammete r will increase to approximately 3000 amps AND THEN decrease to approximately 200 amps. B. Approximately 6 seconds after the MG se t is started, the gener ator field breaker will close. C. The Recirc Pump speed will increase to approximately 50% of rated generator speed. D. The Recirc Pump speed will decrease A ND settle at approximately 20% of rated speed. ADDITIONAL INFORMATION
- Procedures: HC.OP-SO.BB-0002(Q), REACTOR RECIRCULATION SYSTEM OPERATION Valves/Breakers/Controllers: 1-HV-F031A(B), RECIRCULATION PUMP DISCHARGE VALVE Indications: 1BBTI-8291A(B) MG SET HYD Oil CLR A(B) Inlet Temperature PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 23 of 39 Rev. 21 SUBSEQUENT OPERATOR ACTIONS (continued)
CONDITION ACTION Continued from Page 21
___ G.12 ENSURE Differential Temperature requirements are met by completing .
[T/S 4.4.1.4]
___ G.13 CLOSE HV-F031A(B) for the pump to be started. ___ G.14 IF Differential Temperature Requirements CANNOT be met, THEN EXIT this condition and restart a Recirculation Pump IAW the SOP. (BB)
___ **NOTE 11** G.15 WITHIN 15 minutes of completing PERFORM the following:
[T/S 3.4.1.4]
___ A. PRESS REACTOR RECIRCULATION PUMP A(B) MOTOR BRKR CLOSE PB.
___ B. VERIFY BB-HV-F031A(B) opens according to jog sequence. (approximately 80
seconds for full travel)
___ G.16 MONITOR MG Set Lube Oil Temperatures. G. BOTH Recirculation Pumps TRIPPED
AND Potential exists for
Thermal Stratification
Continued from Page 21
___ G.17 ENSURE RWCU system operating correctly per HC.OP-SO.BG-0001(Q)
___ CAUTION 8
___ CAUTION 9 H. Recirculation Flow cannot be Restored AND There is potential for
vessel Thermal
Stratification
Feedwater are not needed for RPV level or
pressure control. Date/Time:
___ H.1 SLOWLY RAISE RPV level to 80" to induce natural circulation.
[CD-693A]
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 24 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A ADDITIONAL INFORMATION
- Procedures: HC.OP-ST.BB-0001(Q), Recirculation Jet Pump Operability - Daily. HC.OP-ST.BB-0007(Q), Recirculation Je t Pump Operability Single Loop - Daily. HC.RE-IO.ZZ-0001(Q), Core Operations Guidelines HC.OP-IO.ZZ-0004(Q), Shutdown From Rated Power To Cold Shutdown.
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 25 of 39 Rev. 21 SUBSEQUENT OPERATOR ACTIONS (continued)
CONDITION ACTION ___ I.1 COMPLETE (one) of the following:
___ ST.BB-0001.
___ ST.BB-0007. I. Suspected Jet Pump Failure.
[T/S 3.4.1.2]
Date/Time:
___ I.2 ANY Jet Pump INOPERABLE AND in Operational Condition 1 or 2 THEN COMMENCE a unit Shutdown IAW IO.ZZ-0004.
[T/S 3.4.1.2]
J. Reactor is Sub-Critical AND No Recirc. Pumps running
[CD354F] Date/Time:
___ J.1 INSERT all Control Rods to 00 IAW the Shutdown Sequence.
(RE.ZZ-0001) (IO.ZZ-0004)
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 26 of 39 Rev. 21 RETAINMENT OVERRIDE CONDITION ACTION I. Affected Recirc Pump seal cavity temperature greater than 200 degrees F
Date/Time:
___ I.a REDUCE the affected Recirc pump speed to minimum, TRIP the affected Recirc pump and enter Condition A CAUTIONS: 10. ENSURE compliance with LCO 3.4.1.3 at all times.
NOTES: 12. It is recommended that operator action to reduce speed or shut down the pump be taken if seal temperatures exceed the stated limits and sustain these levels. Temperature spiking that results in momentary entry into the ALERT or ALARM thresholds should be evaluated by Engineer ing to determine if operator action is necessary. It is not the intent of this guidance to unnecessarily cycle the plant or the
Operations staff.
ADDITIONAL INFORMATION Indications: A2998 A Recirc Pump Seal Cavity 2 Te mperature (CRIDS Alarm set point = 180F) A2999 A Recirc Pump Seal Cavity 1 Tem perature (CRIDS Alarm set point = 180F) A3008 B Recirc Pump Seal Cavity 2 Tem perature (CRIDS Alarm set point = 180F) A3009 B Recirc Pump Seal Cavity 1 Tem perature (CRIDS Alarm set point = 180F)
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 27 of 39 Rev. 21 SUBSEQUENT OPERATOR ACTIONS (continued)
CONDITION ACTION ___ K.1 IF any Any Recirc Pump Seal Cavity temperature >150F OR Indication of an adverse trend:
TRACK seal pressures/temperatures and
drywell floor and equipment inputs.
VERIFY adequate Seal Purge Flow.
VERIFY adequate Seal Cooling.
___ K.2 IF any Recirc Pump seal cavity temperature exceeds 170°F, THEN BRIEF the control room for a potential down power.
___ **NOTE 12** ___ CAUTION 10
___ K.3 IF any Recirc Pump Seal Cavity temperature
>180F, THEN LOWER Recirc pump speed to maintain seal temperature < 180F. ___ K.4 IF the speed reduction does not restore and maintain Recirc pump seal temperature below 180F, THEN REMOVE the Recirc Pump from service.
___ A. PRESS SIC-R621A(B) PUMP A(B) SPD CONT DECREASE push button UNTIL minimum speed is reached.
___ B. PRESS PUMP A(B) MOTOR BRKR TRIP
push button. K. Any Recirc Pump Seal Cavity temperature >150F
OR Indication of an adverse trend
Date/Time:
___ C. ENTER and complete condition "A"
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 28 of 39 Rev. 21
This Page Intentionally Blank PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 29 of 39 Rev. 21 1.0 COMPLETION AND REVIEW 1.1 EXPLAIN the entry Condition into the abnormal in the Comments Section. ____
1.2 ANNOTATE in the comments section all systems affected by the implementation of this procedure AND restoration actions (i.e. restoration line ups) completed/required. ____
1.3 ATTACH photocopies of any Hard Cards utilized as part of this procedure implementation to Attachment 1. ____
1.4 ENSURE the Exit time for any applicable conditions and this abnormal are annotated in the comment section AND the Control Room Logs. ____
1.5 FORWARD completed Portions of this procedure AND Sections 1 and 2 of Attachment 1 to SM/CRS for approval and Record Retention. ____
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 30 of 39 Rev. 21
This Page Intentionally Blank PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 31 of 39 Rev. 21 ATTACHMENT 1 (Page 1 of 2)
COMPLETION AND REVIEW
1.0 COMMENTS
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PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 32 of 39 Rev. 21
This Page Intentionally Blank PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 33 of 39 Rev. 21 ATTACHMENT 1 (Page 2 of 2)
COMPLETION AND REVIEW
2.0 SIGNATURES
PRINT NAME SIGNATURE INITIALS DATE/TIME Completion of this attachment is annotated in the Control Room Logs:
Printed Name SIGNATURE Date/Time 3.0 SM/CRS FINAL REVIEW AND APPROVAL:
This procedure and Attachment 1 have been reviewed for completeness and accuracy.
Entry/Exit conditions and all deficiencies, including corrective actions, are clearly recorded in the COMMENTS Section above. Printed Name SM/CRS Date/Time
4.0 RECORDS
4.1 RETAIN the following IAW RM-AA-101, Records Management Program: Procedure cover page Affected Conditions and Hard Cards performed Completion and Review section Attachment 1 PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 34 of 39 Rev. 21 ATTACHMENT 2 REACTOR RECIRCULATION PUMP PRE-START TEMPERATURE DIFFERENTIAL CRITERIA DETERMINATION (Page 1 of 2) 1.0 REACTOR VESSEL TO BOTTOM HEAD DRAIN LINE DIFFERENTIAL TEMPERATURE CRITERIA 1.1 Rx Pressure Vessel Steam Space Coolant Saturation Temperature. (Rx Pressure and Steam Tables) (Note 1) ____ 1.2 Bottom Head Drain Coolant Temperature.
(Note 2) (Computer Point A2942) ____ 1.3 < 145°F between Rx Pressure Vessel Steam Space Coolant AND Bottom Head Drain Line Coolant (A - B). ____ [T/S 4.4.1.4]
1.4 Time Readings taken:
2.0 REACTOR VESSEL TO RECIRCULATION LOOP DIFFERENTIAL TEMPERATURE CRITERIA 2.1 Temperature of the Rx Coolant within the idle loop to be started up.
(Note 3) ____ 2.2 Temperature of coolant in the Rx Pressure Vessel. (RX Pressure and Steam Tables) (Note 1) ____ 2.3 < 50°F between the Rx Coolant wit hin the loop not in operation AND the Coolant in the Rx Pressure Vessel (A-B). ____ [T/S 4.4.1.4]
2.4 Time Readings taken:
Note 1: Steam Table as part of this attachm ent may be utilized to determine temperature rounding the numbers in a conservative fash ion. For a more accurate conversion from pressure to temperature a more deta iled set of steam tables should be utilized.
Note 2: RWCU Flow required for accurate Bo ttom Head Drain Coolant Temperature indication.
Note 3: Use TR-650-B31 Recirc Pump Suction Loop A(B) (if available)
OR if above 400° F - CRIDS points A221 and A222 for A loop (A223 and A224 for B loop).
IF below 400°F AND TR-650-B31 not available, THEN have I&C obtain temperatures using RTD ohm values (reference RTD ohm values to calibration data in TDR using HC.OP-GP.ZZ-0008(Q))
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 35 of 39 Rev. 21 ATTACHMENT 2 REACTOR RECIRCULATION PUMP PRE-START TEMPERATURE DIFFERENTIAL CRITERIA DETERMINATION (Page 2 of 2)
SATURATED STEAM TABLES TEMP °F ABS PRESS (PSIA)
TEMP °F ABS PRESS (PSIA) 200 11.526 388 215.220 212 14.696 396 236.193 220 17.186 404 258.725 228 20.015 412 282.894 236 23.216 420 308.780 244 26.826 428 336.463 252 30.883 436 366.03 260 35.427 444 397.56 268 40.500 452 431.14 276 46.147 460 466.87 284 52.414 468 504.83 292 59.350 476 545.11 300 67.005 484 587.81 308 75.433 492 633.03 316 84.688 500 680.86 324 94.826 508 731.40 332 105.907 516 784.76 340 117.992 524 841.04 348 131.142 532 900.34 356 145.424 540 962.79 364 160.903 548 1028.49 372 177.648 556 1097.55 380 195.729 564 1170.10
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 36 of 39 Rev. 21 ATTACHMENT 3 PLACING RWCU IN SERVICE (Page 1 of 2)
CAUTION RWCU pumps should be started immediately if possible to avoid thermal stresses to piping and associated components.
- 1. IF necessary, RESET NSSSS as follows: ____
1.1 ENSURE conditions causing the Isolation have been corrected. ____
1.2 PRESS the following PBs to reset NSSSS: NUCLEAR STEAM SUPPLY SHUTOFF SYSTEM TRIP LOGIC A RESET. ____ NUCLEAR STEAM SUPPLY SHUTOFF SYSTEM TRIP LOGIC B RESET. ____ NUCLEAR STEAM SUPPLY SHUTOFF SYSTEM TRIP LOGIC C RESET. ____ NUCLEAR STEAM SUPPLY SHUTOFF SYSTEM TRIP LOGIC D RESET. ____
1.3 OPEN HV-F001 and HV-F004, RWCU suction valves. ____
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 37 of 39 Rev. 21 ATTACHMENT 3 PLACING RWCU IN SERVICE (Page 2 of 2)
- 2. ENSURE HV-F044, Filter Demin Bypass valve is CLOSED. ____
- 3. ENSURE HV-F104 HX Bypass valve is CLOSED. ____
NOTE RWCU pumps trip on low flow <70 gpm and after a time delay of 15 minutes. This trip will only occur if the common pump suction flowpath is <70 gpm.
- 4. START A(B) P221, RWCU pump. ____
- 5. THROTTLE OPEN HV-F044, Filter Demi n Bypass valve until computer point A2856, RWCU Outlet Flow indicates approximately 150 gpm. ____
- 6. START B(A) P221, RWCU pump. ____
- 7. THROTTLE OPEN HV-F044, Filter Demi n Bypass valve until computer point A2856, RWCU Outlet Flow indicates approximately 300 gpm. ____
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 38 of 39 Rev. 21 ATTACHMENT 4 POWER TO FLOW MAPS (Page 1 of 2)
OPRMS OPERABLE
Natural Circulation Line MELLLA Boundary Minimum Pump Speed Line Cavitation Line OPRM Enable Region Region 1 Maximum Core Flow Line
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 39 of 39 Rev. 21 ATTACHMENT 4 POWER TO FLOW MAPS (Page 2 of 2)
OPRMS INOPERABLE
Natural Circulation Line MELLLA Boundary Minimum Pump Speed Line Cavitation Line Region 2 Region 1 Maximum Core Flow Line
PSEG Internal Use Only HC.OP-AB.RPV-0003(Q) RECIRCULATION SYSTEM/POWER OSCILLATIONS Hope Creek Page 1 of 1 Rev. 21 Biennial Review Performed: Yes No NA Packages and Affected Document Numbers incorporated into this revision: CP No. CP Rev. AD No. Rev No. None The following OTSCs were incorporated into this revision: None REVISION
SUMMARY
Added an initial indication of Recirc Pump #2 seal cavity pressure < 200 or > 800 psig. Added Action D.2 to reduce pump seal cavity temperature to < 180° F. Revises Action D.3 for Recirc Pump #2 s eal cavity pressure < 200 or > 800 psig. Added a reference for the above actions.
This was reviewed in 70086680 and is editorial. (70086680-0763)
IMPLEMENTATION REQUIREMENTS None