ML19319E195
| ML19319E195 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 01/12/1976 |
| From: | Crews J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| References | |
| PNO-V-760112, NUDOCS 8003310708 | |
| Download: ML19319E195 (1) | |
Text
. _
Q fRELDEDWUtY NOTIFICATION - NOT FOR PUBLIC DISCf.05URE
~
, y, )#y '
To: 6. e~f r.ge.r
, i s MR L
e n
sem: 3. L.D rews, te: E
. &]\\
^
PRELDEDWULY IIOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE --PN (/
spresented is as initially received without verification or evaluation and is basically all that is known by_0!E staff as of nce - c.C I'
I date of this noti fication.
IT SHOULO BE SPECIFICALLY NOTED THAT TAIS RulIFICATION MAY COI4TAlti I?iFORMATION THAT LATER PAY BE DITElBTINED TO BU. IMACCURATE OR INCONSISTENT.
AN OFFICE OF INSPECTION AYDTiFORCEMENT m raIFICATION OF AN I?4CIDEf4T OR OCCURRENCE (BLUE SHEET) SUBSE00Et4TLY, WLLL BE 155ULO IF WARRANIED.
Facility:
Sacramento Municipal Utility District (Rancho Seco)
$4tdect:
OUTAGE EXTENSION - GENERATOR INSULATION BREAKDOWN
~
j.
r.;
An insulation breakdown in a phase 1 stator coil of the main generator" was identified during the past weekend.
The generator rotor will have to be removed to permit stator repairs.
Repairs are expected to take taso weeks if only re-insulation is required.
If stator coil reolacement j
is required. repairs may take an additional two months.
1 The facility was in the final phases of preparation for returning to power operation following completion of the turbine repair outage Yo NM&kNNM*
OIE (Region V - San Francisco) received notification of this occurrence -
by telephone from the Plant Technical Assistant at 09:00 a.m. on January 12. 1976.
8 p' d h
D-"
.m 8
h
~
D*
M i
o v 1!
n g g
7 gAk 1)
_ 2.1. Inla
.=
=
= -
4
=e B003310 M 7 j
'4
+N--
E e--
,,y
,,,-y-,,.w y
w----,
y.-,
w-3-,-y
-ym,.-,y w,
-