05000366/LER-1980-115-03, /03L-0:on 800727,while in shutdown,2C Diesel Generator Failed to Tie & Supply 4,160-volt Bus 2G.Caused by Instrument Setpoint Drift.Relay Recalibr & Surveillance Performed W/Satisfactory Results

/03L-0:on 800727,while in shutdown,2C Diesel Generator Failed to Tie & Supply 4,160-volt Bus 2G.Caused by Instrument Setpoint Drift.Relay Recalibr & Surveillance Performed W/Satisfactory Results

ML19344E152
Person / Time
Site:	Hatch
Issue date:	08/20/1980
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19344E151	List: 05000366/LER-1980-115, Forwards LER 80-115/03L-0 05000366/LER-1980-115-03, /03L-0:on 800727,while in shutdown,2C Diesel Generator Failed to Tie & Supply 4,160-volt Bus 2G.Caused by Instrument Setpoint Drift.Relay Recalibr & Surveillance Performed W/Satisfactory Results
References
LER-80-115-03L, LER-80-115-3L, NUDOCS 8008270349
Download: ML19344E152 (2)

LER-1980-115, /03L-0:on 800727,while in shutdown,2C Diesel Generator Failed to Tie & Supply 4,160-volt Bus 2G.Caused by Instrument Setpoint Drift.Relay Recalibr & Surveillance Performed W/Satisfactory Results

Event date:
Report date:
3661980115R03 - NRC Website

text

wauww m encamamwcwtcawcwvt9xuwcmumumt 0

LICElJSEE EVENT HEPORT cONTnOL ULOCK: l l

l l

l l

lh (PLE/sSE PnifJT On TYPE AL L RLOU! RED it.FORMAllON) s u

[5ll (G l A l E ll _jH l 2 l@l 01 0l -l 0l Ol 0l Ol 0] -l Ol 0]@! 41 11 1_] Il lj@l_ l l@

7 h 9 LicErdLE l-CODE 14 15 ttCtNSLr4UYBLH 15

ct, LICL N,L 1 v e>L Ju 51 ( A i vi CON'T M

CM l L l@] 0 l 5 l 0 10 10 l 3 16 l6 l@l 0] 7 l 2 l 7l 31 O l@l 0 l 8 l 2 l 0 l 8 l 0 l@

7 B

OO 01 DOCKLT NUMut R 66 W

LVEN1 UAlt 14 15 HFPORT D Alt t' d EVENT DESCHIPTIOPJ Af4D PR'.)DABLE CONSEQUENCES h 10171 l llith the reactor in shutdown and performinq surveillance procedure liflP J l O 131 1 3801-0, Diesel Generator flanual Start, 2C Diesel Generator failed to tie l

Io la l l and supply 4160 Volt Bus 2G p r procedure.

A second attempt was made but i

10151 l it failed also.

There was no effect on the health and safety of the gen-l la lc l l eral public due to this event.

This is a non-repetitive event.

l 10171 I l

10101 l I

M ao C DE C DE SUPCC E CO?/PO'eENT CODE SU C DE S t, O E lolol l E l E l @ [ E_j @ l E l @ l R l E l L l A l Y l X_j@ l D l @ [Z__j @

7 8

9 10 11 12 13 18 19 20 SEOUE NTI AL OCCUh B E NCE DEF04T HEV8SION

,,_LVENT YE AR HE PCH1 NO.

CODE TYPE N O.

@ lltg n pO I 81 01 L-j l Il li 51 M

1013j lL l

[---J l0]

S'jf;

_23 3J 31 32

' t3 2s 28

__ 2 n 21 23 24

/

A.E r il )

O PL T T O HOUH5 s Pa l T F O) ?

b.

St L i st

• / Af t /

t1i La

[._E_j@l F l@

[Z,._j@

llj@

l0101010]

l Yl@

l Il l@

lNl@

lGl0l8l0l@

JJ 34 JS 36 3/

40 41 42 41 44 47 CAUSE DESCRIP110N AND CORRECTIVE AClioNS h li j o] l The reason that 2C Diesel Generator failed to tie and supply 4160 Volt I

[ili l l Bus 2G war..due to instrument setpoint drift.

The relay was recalibrated I

g i j,; j and surveillance was performed with satisfactory results.

All Unit I and I

l i_131 l Unit II Diesel Generators use this type relay, but surveillance on other l

ly l411 Diesel Generators was performed with satisfactory results.

J 7

53 9 8')

l ST 1 S

's, POWE R OTHER S1 ATUS blSCO I DISCOVE RY DESCniPTION l1 i s I [G,j@ l 0l 0 l 0]@l NA l

l B l@l Surveillance Testing l

A HVUY CC fNI RE L E Af,E D OF CELF ASE AYOUNT Of ACTIVIT)

LOCAllCN OF RE LE AS E lZl@ { @l NA l

l flA l

c 7

8 9 IJ 11 44 45 60 PEH50NNE L i yPOSURL$

NUP.*td H TN FE DEOCHiPTION I i I 7 I l 01010 l@LZ j@l NA I

" nn:Om'Li.uUirs nrSCn.PuON@

,.U,m n 1010101@l NA I

i n F

H 9 11 1'l 80 L OSS OF OH O/N AL,t l') F ACILt ! Y l yr t~

Di sci,ir110N [Zj@l flA l

i 7

u 9 10 t<0 1%U

[ CHtPTION y

121"ILtd[81 NA I

IIIllIIlliIIli 8'0 0 82 7 0 3W N A?.4E OF PREPAREH _. T.Mx M 2-E-M 2,

pgang;

.=

!1ARPATIVE REPORT Georgia Power Company Plant E. I. Ilatch Daxley, Georgia 31513 Reportable Occurrence Report !{o. 50-366/1980-115 4

2 tlith the reactor in shutdown and performing surveillance procedure HilP-2-3801-0, Diesel Generator 11anual Start, Diesel Generator 2C failed to tie and supply 4160 Volt Bus 2G per procedure.

A second attempt was made but it failed also.

There was no effect on the health or safety of the general public.

This is a non-repetitive event.

.The reason that 2C Diesel Generator failed to tie and supply 4160 Volt Bus 2G was du'e to instrument setpoint drift.

The relay was recalibrated and surveillance i

was performed with catisfactory results.

All Unit I and Unit II Diesel Generators use this type relay, G. E. flodel flo.121Cil51A2A.

Surveillance on other Diesel Generators was performed with satisfactory results.

!!o inherent problems were found during the generic review.

I 4

4 l

1 2

e -,-,.--,

..m.-

o

,v.-

,.,,--n-

,,o,,,

,,.r-.c