ML16152A892
| ML16152A892 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 01/04/1990 |
| From: | Wiens L Office of Nuclear Reactor Regulation |
| To: | Tucker H DUKE POWER CO. |
| References | |
| TAC-73399, TAC-73400, TAC-73401, NUDOCS 9001180347 | |
| Download: ML16152A892 (4) | |
Text
UNITED STATES 0
NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 January 4, 1990 Docket Nos. 50-269, 50-270, and 50-287 Mr. H. B. Tucker, Vice President Nuclear Production Department Duke Power Company 422 South Church Street Charlotte, North Carolina 28242
Dear Mr. Tucker:
SUBJECT:
OCONEE UNITS 1, 2 AND 3 -
HIGH PRESSURE INJECTION AND REACTOR BUILDING SPRAY PUMP MOTORS OVERCURRENT RELAYS (TAC NOS. 73399/73400/73401)
As part of our routine review of selected licensee events, the NRC staff has been reviewing possible effects on the high pressure injection (HPI) pump motors as a result of raising overcurrent relay settings. The relay settings had been raised to preclude potential motor trips during low voltage conditions during a LOCA/LOOP scenario and was reported to the NRC by Licensee Event Report (LER) 269/87-05. In addition, DPC recently reported, in LER 270/89-06, that the overcurrent relay setting for a reactor building spray (RBS) pump motor was raised under similiar circumstances.
In order to complete our review of these events, DPC is requested to provide us with the following for both the HPI and RBS pump motors:
(1) Motor manufacturer's certifications that these motors will start and accelerate to rated speed at the predicted worst case voltage conditions (three-unit LOOP) with no adverse effect upon the motors' performance and/or life.
or (2) Actual low voltage starting test data for the motors which demonstrate that the pump motors will start and accelerate to rated speed at the worst case predicted voltage conditions (three-unit LOOP) with no adverse effect upon the motors' performance and/or life.
This issue, relating to the HPI pump motors, had been previously discussed with members of your staff during a meeting held at the Oconee Nuclear Station on July 19 through 21, 1989.
9001180347 900104 PDR ADOCK 05000269 P
PNU
Mr. H. B. Tucker
- 2 The reporting and/or recordkeeping requirements contained in this letter affect fewer.than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, Leonard A. Wiens, Project Manager Project Directorate 11-3 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation cc:
See next page DISTRIBUTION Docket File NRC PDR Local PDR PDII-3 Reading S. Varga 14-E-4 G. Lainas 14-H-3 D. Matthews 14-H-25 R. Ingram 14-H-25 L. Wiens 14-H-25 F. Rosa 8-D-20 F. Burrows 8-D-20 OGC (For inform. Only) 15-B-18 E. Jordan MNBB-3302 ACRS (10)
P-315
[Oconee Plant File]
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OFFICIAL RECORD COPY Document Name:
TUCKER LETTER 12/01
Mr. H. B. Tucker
- 2 The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, conard A. Wiens, Project Manager Project Directorate 11-3 Division of Reactor Projects -
1/II Office of Nuclear Reactor Regulation cc:
See next page
Mr. H. B. Tucker Oconee Nuclear Station Duke Power Company Units Nos. 1, 2 and 3 cc:
Mr. A. V. Carr, Esq.
Mr. Paul Guill Duke Power Company Duke Power Company P. 0. Box 33189 Post Office Box 33189 422 South Church Street 422 South Church Street Charlotte, North Carolina 28242 Charlotte, North Carolina 28242 J. Michael McGarry, III, Esq.
Bishop, Cook, Purcell & Reynolds Mr. Alan R. Herdt, Chief 1400 L Street, N.W.
Washington, D.C..20005PrjcBanh#
- Washngto, D..
-2005U.S.
Nuclear Regulatory Commission 101 Marietta Street, NW, Suite 2900 Mr. Robert B. Borsum Atlanta, Georgia 30323 Babcock & Wilcox Nuclear Power Division Ms. Karen E. Long Suite 525 Assistant Attorney General 1700 Rockville Pike N. C. Department of Justice Rockville, Maryland 20852 P.O. Box 629 Raleigh, North Carolina 27602 Manager, LIS NUS Corporation 2536 Countryside Boulevard Clearwater, Florida 34623-1693 Senior Resident Inspector U.S. Nuclear Regulatory Commission Route 2, Box 610 Seneca, South Carolina 29678 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 Mr. Heyward G. Shealy, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 Office of Intergovernmental Relations 116 West Jones Street Raleigh, North Carolina 27603 County Supervisor of Oconee County Walhalla, South Carolina 29621