Letter Sequence Other |
|---|
|
Results
Other: ML20141N147, ML20141N150, ML20141N153, ML20141N156, ML20141N160, ML20141N163, ML20141N168, ML20141N172, ML20141N176, ML20141N179, ML20141N180
|
MONTHYEARML20141N1721980-01-31031 January 1980
Rev 0 to Procedure RES-OPS-006.00, Operator Training: Draeger Gas Analyzer Use,Function & Applicable Procedure Review. Marked-up AB 1203.14.3 & Ch 4025.01.0 Encl
Project stage: Other
ML20141N1801985-12-31031 December 1985
Rev 0 to Procedure GOP-OLC-001.00, Operator Licensed Candidate Abnormal Operating Procedures,Loss of Nni Power AB 1203.41
Project stage: Other
ML20141N1791985-12-31031 December 1985
Rev 0 to Procedure GOP-OLC-001.00, Operator License Candidate:Abnormal Operating Procedures,Loss of Ac Bus Power Sources AB 1203.28
Project stage: Other
ML20141N1631985-12-31031 December 1985
Rev 1 to Procedure GOP-OLC-001.01, Operator Licensed Candidate:Procedures Normal,Abnormal & Emergency,Loss of Instrument Air
Project stage: Other
ML20141N1601985-12-31031 December 1985
Rev 0 to Procedure RES-OPS-007.00, Operator Training: Infrequent Operations
Project stage: Other
ML20141N1471985-12-31031 December 1985
Rev 0 to Procedure RES-OP-002,0 Operator Training:Rapid Feedwater Reduction
Project stage: Other
ML20141N1761986-01-31031 January 1986
Rev 0 to Procedure GOP-OLC-001.00, Operator License Candidate:Abnormal Operating Procedures,Serious Control Room Fire AB-1203.26
Project stage: Other
ML20141N1681986-01-31031 January 1986
Rev 0 to Procedure RES-OPS-008.00, Operator Training: Starting of Primary H2O Storage Tank Transfer Pumps
Project stage: Other
ML20141N1561986-02-26026 February 1986
Procedure Fcr 85-200, Main Feedwater Pumps Rapid Feedwater Reduction Speed Setpoint
Project stage: Other
ML20141N1531986-02-26026 February 1986
Procedure Fcr 85-201, Steam Generator Level Setpoint
Project stage: Other
ML20141N1501986-02-26026 February 1986
Procedure Fcr 85-227, Main Feedwater Block Valve Interlock
Project stage: Other
ML20141N1441986-02-26026 February 1986
Forwards Training Matls in Response to 851030 Request for Addl Info Re Course of Action & Draft SER (NUREG-1177).Matl Meets Commitment Made in Rev 4 of Course of Action
Project stage: Draft Request
ML20212G6021986-08-0404 August 1986
Safety Evaluation Accepting Util Response to NRC Request for Addl Info Re Question 29 Concerning Training for Infrequent, Critical & Difficult Tasks
Project stage: Approval
ML20212G5341986-08-0404 August 1986
Forwards SER W/Recommendations Re Util 851116 Response & 860226 Submittal in Response to NRC 851029 Request for Addl Info on Question 29 Concerning Training for Infrequent, Critical & Difficult Tasks
Project stage: Approval
1986-01-31
[Table View] |
Text
_
M2W ELOCK VALVE INTERIDCK FCR 85-227 I.
PURPOSE A.
Reduce plant transients and trips caused by failure related to these interlocks II.
DESCRIPTION A.
Remove the interlock between main feedwater valve position and ICS feedwater flow selection 1.
Make ICS always read main feedwater flow B.
Remove the interlock between the main feedwater block valves (FW779 and FW780), and startup feedwater valve position 1.
Install a signal to close the main feedwater block valves on a reactor trip C.
Block Valve Control I
1.
In the open position the block valves will still open and stay open 2.
In the close position the block valves will still close and stay closed 3.
In the auto position the ICS will close the block valves only if the Reactor trips All other automatic closure or opening of the a.
block valves by ICS is removed III.
SUMMARY
A.
This change affects the ICS interlocks associated with the Main Feedwater Block valve i
1.
Since the modified circuit cannot switch between S/U and Main FW flow measurements, failures involving undesirable transfer between the two (2) measurements are eliminated 2.
Since the strip chart recorder will only display Main FW flow rate, potential uncertainty concerning which measurement is displayed is eliminated 3.
This change eliminates the interlock between S/U 4
valve position and the Main FW block valves, thus rsquiring the operators to manually control the valves 8603040419 860226 PDR ADOCK 05000346 V
PDR
- -,.,. -. -.
