ML19308A774

LER 78-001/03L-02:on 780105,Keowee Hydro Unit 2 Failed to Start on Initiation for Oconee Control Room.Caused by Failure of Field Flashing Breaker DB-26 to Close.Breaker Verified Operable.Investigation Continuing as of 780323

ML19308A774
Person / Time
Site:	Oconee
Issue date:	03/23/1978
From:	Ken Wilson DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19308A752	List: ML19308A751 ML19308A753 ML19308A754 ML19308A760 ML19308A774
References
LER-78-001-03L, LER-78-1-3L, NUDOCS 7912110752
Download: ML19308A774 (1)

Text

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89 41 QQCN ET NUMe gn es 69 EV ENT QATE 74 73 atPCRT OAT E to EVENT oESCa4PT1oN ANo PRosA8LE CoNSEcuENCES 10 t o # 21 l During normal operation Keowce Hydro Unit 2 failed to start on initiation  ;

[TTT1 1 from Oconee control room. Since Keowee 2 is a source of auxiliary power  ;

io i.i i for the Oconee station (Units 1, 2, and 3) this is reportable under [

l o t s i l T. S . 6. 6. 2.1.b . (2) . The unit started normally on second and subsequent I l o i s 1 I , m-, r 2 1

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l4 L lg lZ l 9 hNY j [g 47 cAusE oEscsinTicN ANo CoRREC*DVE ACT1oNs titol1 The Field Flashing Breaker (DB-26) on the generator failed to close on first l

,,,,,i attempt. The breaker was verified as operable by subsequent operation and  ;

g i visual examination. Inspection and servicing resulted in no further correc ,

,,,,,g tive action. Extensive investigation is continuing as of March 23, 1978. ,

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