ML20117M121

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Amends 1,080 Amp/H Ref in to 1,058 Amp/H of Required Battery Capacity to Satisfy Load Profile
ML20117M121
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 04/22/1985
From: Warembourg D
PUBLIC SERVICE CO. OF COLORADO
To: Johnson E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
P-85134, TAC-51955, NUDOCS 8505160509
Download: ML20117M121 (1)


Text

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O PublicService 2420 W. 26th Avenue Suite 100 - D Denver, CO 80211 Company of Colorado o;0d,"c580s-m n

(3o3) 571 -7511 April 22, 1985 Fort St. Vrain Unit No. 1 P-85134 Regional Administrator 7 bbb Region IV U.S. Nuclear Regulatory Commission h/ #

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: b 4 h,e p-anm;;g eg n,oay ~ b El0

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