ML19253A594
| ML19253A594 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 09/04/1979 |
| From: | Finfrock I JERSEY CENTRAL POWER & LIGHT CO. |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19253A595 | List: |
| References | |
| TASK-08-03.B, TASK-RR NUDOCS 7909100400 | |
| Download: ML19253A594 (2) | |
Text
Jersey Central Power & Light Company Macison Avenue at Punch Bowt Road Mornstown. New Jersey 07960 (201)455-8200 September 4, 1979 Director of Nuclear Reactor Regulacion Attention:
Mr. Dennis L. Ziemann Operating Reactors Branch No. 2 Division of Operating Reactors U. S. Nuclear Regulatory Commission Nashington, D. C.
20555
Dear Mr. Ziemann:
Subject:
Oyster Creek Nuclear Generating Station Docket No. 50-219 SEP Topic VIII-3.B DC Power System Bus Voltage Monitoring and Annunciation Your letter of June 18, 1979 requested information concerning alarms and voltage monitoring devices available to indicate operability status to the Operator for the Class IE batteries (Battery Band C), associated chargers and direct current buses.
The information you requested is provided in the enclosed attachment and drawings.
Very truly yours,
/
d#
Ivan R. Finf k,
c.
Vice President la Attachment 0 d 7900100 '/o O Cf L
. - ~. - ~ ~. ~
ATTACINENT I.
Information availabic in control room for Battery B 125 Volt DC system (Shown in the attached drawing No. 3028-12) a.
Battery charger failure alarm b.
Battery static charger failure alarm c.
Battery static charger voltage d.
Battery bus ground detection alarm e.
Battery main fuse cabinet bus voltage II.
Information available in control room for Battery C 125 Volt DC system (shown in the attached drawing No. D-3031-0) a.
Battery charger C1 and C2 failure alarms b.
Battery charger C1 and C2 voltage c.
Battery bus ground detection light d.
Battery main fuse cabinet bus voltage e.
Normal supply off annunciator
.