ML17249A188
| ML17249A188 | |
| Person / Time | |
|---|---|
| Site: | Ginna, Palisades  |
| Issue date: | 09/25/1979 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | White L ROCHESTER GAS & ELECTRIC CORP. |
| References | |
| TASK-07-03, TASK-08-01.A, TASK-RR NUDOCS 7910160125 | |
| Download: ML17249A188 (4) | |
Text
n'EP S5 579 Docket No.
50-244 tlr. Leon D: White, Jr.
Vice President Electric and Steam Production Rochester Gas
& Electric Corporation 89 East Avenue Rochester, New York 14649
Dear tlr. lihite:
RE:
R.
E.
GINNA NUCLEAR POl/ER PLANT D
Docket 50-244 Local PDR ORBItI2 RDG NRR RDG DEisenhut RVollmer BGrimes MGammill JMi 1 1 er LShao TCarter DLZiemann HSmith JShea OELD OI&E(3)
JRBuchanan TERA ACRS(16)
Me are curr'ently reviewing the adequacy of the offsite power systems of nuclear power pl,ants and in particular, the loss of offsite power events at your facility.
One aspect of this review concerns the history of experienced total and partial power outages and attendent voltage or frequency conditions of the grid.
In our review of this matter we have drawn upon the information provided to us via Licensee Event Reports and followup letters which you have sent to us.
Our review of these reports indicated the loss of offsite power events t>ave occurred at R. E. Ginna Nuclear Power Plant on October 21, 1973.
To complete our review of loss of offsite power, events we require the additional information concerning the plant offsite grid indicated in the enclosure to this letter.
Please provide your respons'e to the attached questions for the R. E. Ginna Nuclear Power Plant within 90 days of receipt of this letter.
Sincerely,
Enclosure:
Request for Additional Information c
w enclosure:
'Original Signed by thomas V. Wambaeh" Q
Dennis L. Ziemenn, Chief Operating Reactors Branch
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Mr. Leon D. White, Jr. September 25, 1979 CC Lex K. Larson, Esquire
- LeBoeuf, Lamb, Leiby 8
MacRae 1757 N Street, N.
W.
Washington, D.
C.
20036 Mr. Michael Slade 12 Trailwood Circle Rochester, New York 14618 Rochester Committee for Scientific Information Robert E. Lee, Ph.D.
P. 0.
Box 5236 River Campus Station Rochester, New York 14627 Jeffrey Cohen New York State Energy Office Swan Street Building Core 1, Second Floor Empire State Plaza
- Albany, New York 12223 Director, Technical Development Programs State of New York Energy Office Agency Building 2 Empire State Plaza
- Albany, New York 12223 Herbert Grossman, Esq.,
Chairman Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Dr. Richard F. Cole Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Dr.
Emmeth A. Luebke Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D.
C.
20555 Rochester Public Library 115 South Avenue Rochester, New York 14604
ENCLOSURE RE VEST FOR ADDITIONAL INFORMATION LOSS OF OFFSITE POWER A.
For losses of offsite power where less than all offsite power was lost:
1.
How many circuits to the offsite network are normally available and how many were lost during the event?
2.
What was the cause of the event'?
3.
Why di'd the other lines not fail when some did fail' 4.
Was any voltage increase or decrease experienced just prior to or during the outage?
If so, please give details, voltages
- reached, affects, etc.
5.
Was any frequency decay experienced just prior to or during the outage?
If so, please give details, lowest frequency reached, decay rate, affects on equipment operation, etc.
6.
How long was power unavailable from the circuit?
7.
Date of Event.
B.
For losses of all offsite power:
1.
How long was the power off?
How long for partial recovery?
Please give details.
2.
3.
If turbine trip occurred, how soon after did loss of offsite power occur?
~
~If power was recovered promptly {10 minutes or less),
was it due to automatic or manual actions?
4.
Was any voltage increase or decrease experienced just prior to or during the outage?
If so, please give details, voltages
- reached, affects, etc.
5.
Was any frequency decay experienced just prior to or during the outage?
If so, please give details, lowest requency
- reached, decay rate, affects on equi pment operation, etc.
6.
Date of Event.
C.
Were there any other loss of offsite power events other than we have listed?
If so, please give details of each event.