ML20024A944
| ML20024A944 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 01/27/1981 |
| From: | GENERAL PUBLIC UTILITIES CORP. |
| To: | GENERAL PUBLIC UTILITIES CORP. |
| References | |
| TASK-*, TASK-GB GPU-0036, GPU-36, NUDOCS 8307010212 | |
| Download: ML20024A944 (2) | |
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RESPONSE TO til-2 CONCERNS TASK DESCRIPTION.
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7-SYSTDi DTNAMIC RESPONSE L
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LEAD SECTION HCR.: E. A. WOMACE TITLE: FOST TRIP CONIROL C
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TO DEFINE AND IXPLDENT HARDWARE AND/OR PROCEDURES THAT WII I.
OBJECIIVE:
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ENHANCE THE POST TRIP CONTROL OF THE B&W NSS.
NUREG-0560, THE NRC/ACRS. AND OPERATING PLA'IT DATA HAVE INDICATED 2.
BACEGROUND:
THAT THE ' RESPONSE OF THE B&W NSS FOLLOWING A REACIOR TRIP IS CHARACTERIZED BT WIDE VARIATIONS Di SYSTDi PARAMETERS INCIRD PRESSURE (STEAM AND RCS) AND LEVEL (PRESSURIZER AND ST IN HANY D; STANCES. THE OPERATORS INITIATE HPI TO MADhAIN PRESS RIZER LEVEL AND PRISSURE.
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PROBLDi THE NSS PERFOR".ANCE FOR VARICUS INITIAL CONDITIONS. IS NOT DI DEFINITION:
..F""..UUH TEE DESICV ASSUMP_TIONS._ _ - _. THI.S TASE WILL
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ACTUAL OPERATING BEHAVIOR OF THE NSS EQUIPMENT AND DEVELOP ME POR PROVIDING SN00TH POST TRIP CONTRC4. OF THE. PRESSURIZER AN I
STEAM CEN.ERATOR PARATInS.
4.
ACTION PLAN:
A) CATHER PLAhr SPECIFIC PERFOR2W;CE DATA. -(IN PARIICULAR, STEAM i
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SAFETT VALVE. AND TURRINE BYPASS VALVE CONTROL CHARACTERISTIC
- 3) IMPROVE PT-IV MODEL FOR TRIP AND POST TRIP LOW POWM ANALYSTS C) DEPINE TARGET POST-TRIP CONTROL, CRITERIA.
D) LIST CANDIDATE CONTROL IMPROVD!Eh*I TECHNIQUES, J
E) PERFORM ANALYSES, COMPARE RISL"LTS VITH TARCET ACCEPTANCE CRITERIA.
.O P) PREPARE IrrtRIM REPORT - DISCUSS WITH CUSTOMERS.
C) PREPARE B&W STANDARD DESIGN FOR POST-TRIP CONTROL.
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C-DR ADOCK 05000 89 p
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s RECEIVE CUSTCMER (177) COMMENTS (ON F).
,iDT H) l FREPARE FINAL 177 NSS POSI-TRIP CONTROL REPORT.
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J) PREPARE PLA'TT SPECIFIC CHANGE PACKACE.
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K) PROCCRE NECESSART HARDWARE.
a L) PREPARO APP?.DPRIATE PROCEDURES AS REQUIRED.
O M) CHECE OUT EQUIF.'fDIT AND PROCEDURE.
- 3) RELEASE TO CUSTOMER.
3.
SCHEDULE:
- 1) ACTION ITDiS A-C
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1 TEAR
- 2) ESTIMATED SCHEDULE, ACTION ITDiS G-N 1
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RESPONSIBLE
. DiCINEER:
L. L. JOTNER 7.
RESPONSIBLE PM/0RCANI-O ZATION:
- 1. E. WASCEER/NCCLEAR SERVICE EICEFI ITDi G WHICE IS STD FLANT.
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SUPPORT 01-7 CANIZATIONS:PIRiT INIICRATIO3 SAFETT ANALYSIS ECCS ANALYSIS E.
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f RAILEY CDNTROLS 1
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REFERDICES n.
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