Letter Sequence Other |
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MONTHYEARML20117M1211985-04-22022 April 1985
Amends 1,080 Amp/H Ref in to 1,058 Amp/H of Required Battery Capacity to Satisfy Load Profile
Project stage: Other
ML20128P6271985-05-23023 May 1985
Summary of 850516 Meeting W/Util Re Emergency Electrical Power Sys Concerns Resulting from Staff Evaluation of Problems from Testing Emergency Diesel Generators on 841218. Justification for Continued Operation Requested
Project stage: Meeting
ML20133E7491985-05-28028 May 1985
Requests Interim Evaluation Re Acceptability of Automatic & Manual Control of Emergency Electrical Power Sys by 850607, Per 850516 Meeting W/Util.Summary of Meeting Encl.W/O Encl
Project stage: Meeting
ML20127N6951985-06-14014 June 1985
Elaborates on Util Commitments to Listed Plant Activities, Including CRD Mechanism Temp Recording,Requalification, Surveillance & Preventative Maint,Backup Reactor Shutdown Procedure,Tendons & Pcrv Integrity & Electrical Sys
Project stage: Other
ML20127N6551985-06-14014 June 1985
Responds to Concerns Raised During 850516 Meeting in Bethesda,Md Re Review of Emergency Electric Power Sys. Response Addresses Independence of Redundant Emergency Power Trains,Rapid Transfer Sys Testing & Switchgear Control Sys
Project stage: Meeting
ML20133D0241985-07-0505 July 1985
Safety Evaluation Supporting Emergency Electrical Sys,Per Problems Encountered During 841218 Testing of Emergency Diesel Generator Sets
Project stage: Approval
ML20133C9821985-07-10010 July 1985
Forwards Safety Evaluation Re Facility Emergency Electrical Power Sys.Facility Can Safely Operate for Interim Period W/ Emergency Diesel Generator Single Failure Identified in Evaluation.Nrc Awaiting Addl Info Re FSAR Compliance
Project stage: Approval
ML20132D5561985-07-17017 July 1985
Notice of Deviation from Insp Completed on 850705. Deviation Noted:Automatic Closure of One Emergency Diesel Generator Breaker Dependent on Operation of Components Associated W/Other Emergency Diesel Generator
Project stage: Other
ML20134E7521985-08-0909 August 1985
Responds to Re Notice of Deviation on Emergency Electrical Power Sys Independence,Per Undated FSAR Commitment.Evaluation of Postulated Single Failure Points Compromising Diesel Generator Independence Underway
Project stage: Other
1985-06-14
[Table View] |
Text
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Company of Colorado 2420 W. 26th Avenue Suite 100 - D Denver, CO 80211 o;0d,"c580s-m n
(3o3) 571 -7511 April 22, 1985 Fort St. Vrain Unit No. 1 P-85134 h/
7 bbb Regional Administrator Region IV U.S. Nuclear Regulatory Commission MY-3E 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 j
Attn: Mr. E. H. Johnson
Subject:
Station Battery Capacity to Satisfy Load Profile
Dear Mr. Johnson:
Letter P-85077 (dated 3/11/85), Attachment B-Battery Sizing, states a minimum battery capacity of 1080 amp / hrs would be required to satisfy the FSV emergency DC load profile.
The Exide computer modeling of our load profile requirements shows this number to be 1058 amp / hrs.
The Exide program specifies an FTC-15, 1180 amp /hr battery as sufficient to satisfy our needs, with an 11.5% margin.
This calculates to a requirement of the above-stated 1058 amp / hrs.
This correspondence is to amend the 1080 amp /hr reference in letter P-85077 to 1058 amp / hrs of required battery capacity.
Very truly yours, h JY Wlu d Don W. Warembourg Manager, Nuclear Engineering Division DWW/MR/dh Reviewed by:
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