ML19207C107
| ML19207C107 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 05/03/1979 |
| From: | Werts R GENERAL PUBLIC UTILITIES CORP. |
| To: | Arnold R GENERAL PUBLIC UTILITIES CORP. |
| References | |
| NUDOCS 7909060445 | |
| Download: ML19207C107 (1) | |
Text
Inter-Office Memorandum Dre.
MAY 3, 1979 V e 1 Service
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Subject RELAXATION OF E.. IRA-PRECAUTIONARY MEASURES TO POWER SUPPLY AT TMI To MR. R. C. ARNOLD Lccr on READING Our memo of April 12, 1979 outlined the precautionary and safety measures taken to establish and maintain the security of the power supply to the Island.
Subsequent to that memo, an additional meeting was held on April 17, 1979 with the NRC/GPU/ Met-Ed staff to develop an additional off-site source to the 4.16 kV bus to backup the circulating pumps. The plan was approved by the NRC and the 13 8 kV f acilities were installed and ready for service by April 25, 1979 Now that the unit is approaching cold shutdown, the 6.9 kV pumps are not required, and the off-site direct feed to the 4.16 kV bus is available, we request permission to remove the personnel on standby at the TMI 230 kV switching station and at the Middletown Junction substation. These men are required for duty elsewhere and were originally deployed to provide emergency operations during the critical time immediately following the accident.
Both stations are remately controlled and supervised from the Lebanon Dispatch Office. Telephone and radio communications are available between the dispatcher and the TMI Control Room.
We will continue to have supervisory personnel on call during any extreme weather conditions. Hence, it is proposed to return the combustion turbines in Met-Ed's Western Division to normal economic dispatch, discontinue roving line patrols, and return to normal maintenance practices on the bulk power system.
The reliability of the electric supply to the Island will not be jeopardized by the discontinuance of these extra-precautionary measures implemented for the original emergency.
Your early response will be appreciated.
I R. W. WERTS RWW/wp cc:
J. S. Bartman /
C. M. Daniels H. M. Dieckamp R. E. Dudley J. D. Gassert D. S. High 7g09060kff E. Newton Jr.
H. L. Robidoux pc GPU Serv;ce Corporaton is a subsdary cf '3enerd Pubic UtMes Corporaton
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