ML20084D471
| ML20084D471 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 06/07/1973 |
| From: | Worden W COMMONWEALTH EDISON CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 8304120016 | |
| Download: ML20084D471 (1) | |
Text
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REGION 3 US ATOMIC ENERGY COMMI!iSION O
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SUBJECT DPR19 DRESDEN NUCLEAR POWER STATION UNIT 2.
O THIS WILL CONFIRM A CONVERSATION WITH MR MAURA O
OF YOUR OFFICE AT 1515 HOURS THIS DATE CONCERNING O
ISOLATION CONDENSOR MOTOR OPERATED VALVE 2-1301-1 O
WHICH WAS FOUND WITH THERMAL OVERLOADS TRIPPED. VALVE WAS IN ITS NORMAL OPEN POSITION So ISOLATION CONDENSOR MOTOR O
FUNCTION WAS NOT EFFECTIVE. VALVE ISOLATE ON HIGH O
STEAM FLOW IN THE ISOLATION CONDENSOR AND THIS SF.1201 (R549)
O FUNCTION WAS NOT AVAILABLE. LAST SUCCESSFUL SURVEILANCE O
WAS MAY 14, 1973. ALL INDICATIONS WAS NORMAL FOR VALVE.
O THERMOL OVERLOAD WERE SET FOR MANUEL INSTEAD OF AUTOMATIC O
BUT CAUSE OF TRIP STILL UNDER INVESTIGATION.
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DRESDON NUCLEAR POWER STATION O
COMMONWEALTH EDDISON CO O
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