ML17037C166
| ML17037C166 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 04/15/1975 |
| From: | Rhode G Niagara Mohawk Power Corp |
| To: | Anthony Giambusso Office of Nuclear Reactor Regulation |
| References | |
| NEDO-20847, WASH-1270 | |
| Download: ML17037C166 (6) | |
Text
NRC DISTRIBUTION FOG PART Gt) DOC!(FT. I(,'lATERIAL (TE)dPORARY FOR)d)
CONTROL NO'ROM:
Niagara Mohawk Power Co
- Syracuse, N.Y.
13202 TO:
Mr. A. Giamb'usso DATE OF DOC 4-15-75 ORIG 1 signed DATE R EC'D 4-16-75 GC OTHER 39 LTR TWX RPT SEiVT AEC PDR
'SENT LOCALPDR OTHER CLASS UNCLASS XXX PROP INFO INPUT NO CYS REC'D 40 DOCKET NO:
50-220 PLANT NAME:
Niagara Mohawk Pwr. Corp.
DESCRIPTION:
Ltr trans the following:
ENCLOSURES:
Scram:
~ Nuclear Class 1
(40 cys Anticipated Transients Vithout Study for the Nine Mile Point Power Station Unit l(NEDO-20847 March 1975) encl rec'd)
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NIAGARAMOHAWKPOWER CORPORATIONrrtfgfffSfIIP Doff(af pffft
'IAGARA I~r MOHAWK 300 ERIE BOULEVARD, WEST SYRACUSE, N ~ Yr 13202 April 15, 1975
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Mr. A. Giambusso, Director Division of Reactor Licensing Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.
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Nine Mile Point Unit 1 Docket No. 50-220 Q)
'ear Mr. Giambusso:
Enclosed are forty= (40) copies of NED0-20847, the analysis of anticipated transients. without scram for Nine Mile Point Unit 1.
This analysis is submitted in response to your letter of, October 4, 1974.
Tt should be noted that Table 4-1 is incorrectly labeled and should pertain specifically to Nine Mile Point Unit 1.
The results of the analysis for the worst case transient, closure of all'main steam isolation valves, show that with reactor recirculation pumps tripping automatically on high reactor pressure, all'parameters remain within acceptable limits.
However, in view of the extremely remote'robability for occurrence of this transient, as discussed in WASH-1270, Nine Mile Point Unit 1 does not currently have this feature.
4155
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A. Giambusso U.
S. Nuclear Regulatory Commission Page Two April 15, 1975 This analysis demonstrates that manual initiation of the liquid poison system is acceptable.'he report'shows that all'parameters stay within design values even for delayed (10 minutes) actuation of liquid poison.
Very truly yours, NIAGARA MOHAWK POWER CORPORATION erald K. Rh e
Vice President-Engineering
/sz Enclosures (40)
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