ML18139B474
| ML18139B474 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde, Surry, North Anna  |
| Issue date: | 01/23/1978 |
| From: | Stallings C VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Case E Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML18139B473 | List: |
| References | |
| 614-121577, NUDOCS 8108060165 | |
| Download: ML18139B474 (4) | |
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. Enclosure 3 VIRGINIA ELECTRIC.AND POWER COMPANY Ri:cHHOND,VJ:BOX:N.lA 23261
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January 23, 1978
- Hr. Edson G. Case, Acting Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Comnission Washington, D. C.
20555
Dear Sir:
Serial No. 614/121577 PO&M/DLB:das Docket Nos. 50-280 50-281 50-338 License Nos. DPR-32 DPR-37 rIPF-4 This is in response to your letter of December 15,. 1977 requesting the com-pletion of a questionnaire entitled "Questionnaire for Nuclear Regulatory Commis-sion Reliability Study of Standby Diesel Generator Unitsn.
Two completed ques-tionnaires are enclosed; one for Surry Unit Nos. 1 and 2 and one for North Anna Unit No. 1.
The names, addresses and telephone numbers of person to contact for further information are included.
At tadnnents
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Very truly yours, C. M. Stallings Vice President-Power Supply -
and Production Operations 780270035
The person responsible for completing the attached ques~ionnaire and responsible for responding to any follow-up communications is Lauren A. Johnson, Surry Po.-..er Station, Box 315, Surry, Virginia 23883.
His telephone,*number is 804-357-3184 extension 280.
I.*
/ S.
Are any *foreiqn qases such as propane, freon, ha1on, carbon dioxide, etc. stored in the:
Diesel Engine room?
- Yes No X
or adjacent buildings?
Yes No _x_
lf yes, (other than hand portab1e fire extinguishers), then identify gases and give approximate tank size.
3 Gases Volume (ft )
T.
Does control syste~ automatically bypass, in emergency starting, any engine temporarily out of service for maintenance?
Yes No X ---
If yes, then how many failures to bypass have occured?
U.
Does the control system automatically override the test mode under emergency conditions?
Yes No ~-X-V.
Have repetitive mechanical failures occurred in any component part or subsystem of the engine, generator, or switch gear, _etc.?
Yes x
!Jo If yes, then which. part or subsystem?
Cracked liners & heads How ~any failures?
4 Give*nature of failure.
Engine Overheat
~.
~ould periodic (yearly or other) eva1uation and/or testing by "outside experts" contribute significantly to the diesel-genera tor rel i abi 1 i ty?
Yes Ho X
Give brief reasons for the answer.
Station personnel have satisfactory technical ca'pabili ty.
~!anuf ac turers represen-tative makes periodic visits for consultation.
I(.
- - X.
- 1. Give ihe accumulated time-load operating record for each.
di!:!sel-generator _unit from installation to the present (Running Hours):
Preoperational test Date 11-22-71 Finai Turnover Engine Surv. Testing &
Emergency
- Seri al Uc.
Maintenance Hrs.
and Other No load. loaded Service Hrs.
- -f
- 1 :69Jl101 36 144 (12 :69Jll155 36 144 113 :69Jll062 44 176 0
- 2.
Surveillance test load (percent of continuous ratina)
- 3.
Give the projected or planned time-load operation for each diese1-generator unit during the next 12 months.
- Surveillance &
Emergency Total
- Maintenance Hrs.
and other Hours Service Hrs.
Ill : 30 10 40
. 112
- 30
. 10
. 40 113
- 40
. 10
~o Tota 1 Hours 100%
- 4.
Provide the follo'ldng sur:1mary of the periodic surveillance testing
. experience:
a*.
Starting date of surveillance testing (OL date) 8-7-72
- b.
Periodic test interval* Monthly.
- c. Total number of surveillance tests performed 232
- d.
Total nuober of test failures a
fa i1 ure to start 2
la,i lure to accept 1 oad 1
failure to carry load failures due to ooerator error ---
failure due to equipRent not bein9 operative during e~ergency conditions Ocher 5* (Ran hot 3, Water in cylinder 2)
- e. Supply a copy of the surveillance test procedures with this compJeted questionnaire.
PT-22.3A PT-22.2