ML20085F927

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AO 75-014 & RO 75-004:on 750701,bus 1D Failed to Fast Transfer from Station to Startup Power & Control Rod 38 Deviated by 9 Inches,Respectively.Ao Caused by Faulty Auxiliary Contact.Ro Caused by Shorted Capacitor
ML20085F927
Person / Time
Site: Palisades 
Issue date: 07/02/1975
From: Lewis J
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20085F925 List:
References
AO-75-014, AO-75-14, AO-75-4, RO-75-004, RO-75-4, NUDOCS 8308230645
Download: ML20085F927 (1)


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WU AGCY WHEA VEES 66(8921)(2-es7622C153)PD'87/92/75 8917 Opf N-[/jd')~<[

WUA 18s DL

!!A CDT TLX CONSPOWER JKN

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ZCZC.984 DLY JACKSON MICHIGAN gE2'-75 doMg joa PNS USNRC g

MR J G-KEPPLER 6s137 ( ' qg#

'j7g 799 ROOSEVELT RD GLEN ELLYN, IL THIS TVX IS TO CONFIRM OUR TELEPHONE CONVERSATION WITH K BAKER ON 7-1-75 IN RE0ARD (O AN ABNORMAL OCCURRENCE " FAILURE OF BUS 1D TO FAST TRANSFER FROM STATION TO START-UP POWER" AND AN UNUSUAL EVENT "9 INCH DEVIATION ON CONTROL ROD 38."

THESE REPORTS HAVE OUR CODE NUMBERS OF A0 75-14 AND UE 75-4 RESPECTIVELY.

THE LACK OF A FAST TRANSFER HAS BEEN IDENTIFIED TO BE A FAULTY AUXILIARY CONTACT ON AN INCOMING BUS BREAKER.

THE 9-INCH DEVIATION RESULTED FROM A SHORTED PHASE SHIFTING CAPACITOR IN THE MOTOR DRIVE CIRCUIT.

THE FORMAL REPORTS WILL FOLLOV FRON OUR GENERAL OFFICE.

CC RBSEVELL RLHAUETER J G LEWIS PALISADES NUCLEAR PLANT CONSUMERS POWER COMPANY ALL CH h$h0$$0h 050 0 s

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