ML17341B212
| ML17341B212 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 04/30/1982 |
| From: | Grotenhuis M Office of Nuclear Reactor Regulation |
| To: | Carter J, Case E, Harold Denton NRC |
| Shared Package | |
| ML17341B211 | List: |
| References | |
| NUDOCS 8206100291 | |
| Download: ML17341B212 (3) | |
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April 30, 1982 t
UNITEDSTATES NUCLEAR REGULATORY COMMISSION I
WASHINGTON, D. C. 20555 ORIG NAG MEMORANDUM FOR:
H. Denton E.
Case J. Carter D. Eisenhut R. Purple DL Assistant Directors S. Hanauer R. Vollmer R. Mattson H. Thompson J. Sniezek T. Ippolito C. J. Heltemes, AEOD THRU:
Steven A. Venga, Chtef, ORBgl, OL~
FROM:
Marshall Grotenhuis, Project Manager, ORB¹l, DL
SUBJECT:
DAILY HIGHLIGHT 1
Turke Point Unit Nos.
3 and 4
~ About 5:00 p.m. April 29, 1982, Turkey Point Unit 3 tripped due to feed flow-steam flow mismatch and SG low level Caused by"a condensate pump motor failure (one pump was already out of service).
~ Within minutes Unit 4 tripped - due to loss of power to rod position indicators which were being fed by Unit 3.
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~ The ensuing grid instability dropped Cape Canaveral and Sanford (fossil units).
~ St, Lucie (nuclear ) was not affected.
Turkey Point 1 (fossil) was not affected.
Turkey Point 2 (fossil) was out for maintenance.
~ About 2100 MM of about 7100 MM on line was lost (about 600,000 customers affected),
~ itaA. Spent
~ Power was restoredwithin three hours, Unit 3 went on natural circulation and stayed there for about on hour with no problem.
The diesels (2) started normally.
The Unit 3 startup transformer had been out for mainte'nance before the trip and was restored at about 6:00 p.m.
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~ Unit 3 is still at 505 because of condensate pump (two of three are out).
The pumps are being repaired.
~ Unit 4 tripped again at about 6:00 a.m. April 30, 1982, due to SG low level caused by a problem with a Sue+ regulating valve.
The details are not known as yet.
$ee 4 Marshall Grotenhuis, Project Manager Operating Reactors Branch IIl Division of Licensing