ML19241B536
| ML19241B536 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 06/06/1979 |
| From: | Lainas G Office of Nuclear Reactor Regulation |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| References | |
| TASK-08-01.A, TASK-RR NUDOCS 7907180881 | |
| Download: ML19241B536 (3) | |
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NUCLEAR REGULATORY COMMISSION y
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s, v JUN 6 1979 MEMORANDUM FOR:
D. Ziemann, Chief, Operating Reactors Branch #2, Division of Operating Reactors FROM:
G. Lairas, Chief, Plant Systems Branch, Division of Operating Reactors
SUBJECT:
MILLSTONE, UNIT NO.1, REQUEST FOR ADDITIONAL INFORMATION FOR DEGRADED GRID VOLTAM (TAC 10033)
Plant Name: Millstone Nucle.
_r Station, Unit No, 1 Docket No. :
50-245 Responsible Branch: ORB #2 Project Manager:
J. Shea Reviewing Branch: Plant Systems Branch Status: Awaiting Infomation n response to technical assistance request TAC 10033, the Plant tystems Branch has reviewed the licensee's submittal of August 1,1977 and found that additional information is required in order to comnlete our review.
The attached request for additional information should be forwarded to the licensee as soon as possible.
Y G, Lainas, Chief Plant Systems Branch Division of Operating Reactors
Contact:
S. Rhow, X28077 J. Ibarra, LLL i
Enclosure:
As stated
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REQUEST FOR ADDITIONAL INFORMATION MILLSTONE, UNIT NO. 1 DEGRADED GRID VOLTAGE (TAC 10033) 1.
Provide the trip point on the second level voltage protection on the 4160V bus.
Include the basis for the trip point voltage and the time delay in the Technical Specification change.
2.
Describe how the voltage monitors satisfy the requirements of IEEE Std. 279-1971.
Include sufficient information to enable us to verify compliance with the requirements.
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