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| During the transfer, the feeder breaker from the Station Power Transformer opened but the feeder breaker from the Auxiliary | | During the transfer, the feeder breaker from the Station Power Transformer opened but the feeder breaker from the Auxiliary |
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| Mr. J. P. O'Reilly 5-20-77 Power Transformer failed *to close. This resulted .in a loss of the lG 4kV Group Bus and a loss of No. 14 Reactor Coolant Pump. | | Mr. J. P. O'Reilly 5-20-77 Power Transformer failed *to close. This resulted .in a loss of the lG 4kV Group Bus and a loss of No. 14 Reactor Coolant Pump. |
| Plant conditions were stabilized at 25% power in three (3) loop operation. Investigation revealed that the unit isolation trip had not been reset, therefore, not allowing the feeder breaker from,the_Au,xiliary Power Transformer to close. At. | | Plant conditions were stabilized at 25% power in three (3) loop operation. Investigation revealed that the unit isolation trip had not been reset, therefore, not allowing the feeder breaker from,the_Au,xiliary Power Transformer to close. At. |
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| L | | L |
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| Mr. J. P. O'Reilly 5-20~11 77-13-02 Technical Specification 6.8.1 requires written procedures to be established, implemented, .and maintained covering opera-tion of the*reactor coolant system. | | Mr. J. P. O'Reilly 5-20~11 77-13-02 Technical Specification 6.8.1 requires written procedures to be established, implemented, .and maintained covering opera-tion of the*reactor coolant system. |
| Operating Instruction*II 1.3-3, OPERATING WITH LESS THAN FOUR REACTOR COOLANT LOOPS IN* SERVICE, SECTION 5.5, "Start-ing a Reactor Coolant Pump (RCP) During Power Operation," | | Operating Instruction*II 1.3-3, OPERATING WITH LESS THAN FOUR REACTOR COOLANT LOOPS IN* SERVICE, SECTION 5.5, "Start-ing a Reactor Coolant Pump (RCP) During Power Operation," |
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[Table view] Category:Licensee Response to Notice of Violation
[Table view] |
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Frederick W. Schneider Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 201/622-7000 Vice President Production May 20, 1977 Mr. James P. O'Reilly, Director
- u. s. Nuclear Regulatory Commission Off ice of Inspection and Enforcement Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406
Dear Mr. O'Reilly:
NRC INSPECTION REPORT NO. 50~272/77-13 INSPECTION DATE APRIL 12, 1977 NO. 1 UNIT SALEM GENERATING STATION We have received and reviewed the report of your inspection conducted April 12, 1977. The report was transmitted with your letter of April 29, 1977 and received on.May 2, 1977.
Our response to the items of noncompliance is as follows:
77-13-01 "Facility Operating License No. DPR-70 Amendment No. 4 paragraph 2.C. (4), dated January 6, 1977, states in part that, nPublic Service Electric and Gas Company shall not operate the reactor at power levels above P-7 (11 per-cent) *** with less than four (4) reactor coolant loops in operation until *** approval for less than four loop operation at power levels above P-7 has been granted by the Commission by amendment of this license. 1' Contrary to the above on April 12, 1977, the plant was operated from 10:01 a.m. to 10:32 a.m. at 25 percent power with No. 14 Reactor Coolant Pump idle and the associated loop out of service ..
On April 12, 1977, at 1001 hours0.0116 days <br />0.278 hours <br />0.00166 weeks <br />3.808805e-4 months <br />, while in Mode 1 operation, an attempt was made to transfer the lG 4kV Group Bus from_ the Station Power Transformer to the Auxiliary Power Transformer.
During the transfer, the feeder breaker from the Station Power Transformer opened but the feeder breaker from the Auxiliary
Mr. J. P. O'Reilly 5-20-77 Power Transformer failed *to close. This resulted .in a loss of the lG 4kV Group Bus and a loss of No. 14 Reactor Coolant Pump.
Plant conditions were stabilized at 25% power in three (3) loop operation. Investigation revealed that the unit isolation trip had not been reset, therefore, not allowing the feeder breaker from,the_Au,xiliary Power Transformer to close. At.
approximately 1015 hour0.0117 days <br />0.282 hours <br />0.00168 weeks <br />3.862075e-4 months <br />s~ the Unit Isolation Trip had been reset and the lG-4kVGroup Bus was re-energized from the Auxiliary Power Transformer. At 1032 hoµrs, the No. 14 Reactor Coolant Pump was re-started.
There are several factors which contributed to the oversight of the license amendment prohibiting less than four loop operation above 11% *power. Cold SRO licensed supervisory personnel have been standing watch to meet the technical specifi~ -
cation requirements until the control operators are RO licensed.
This has required a certain amount of overtime and irregular shift assignments and has prevented the start of the License Operator Retraining Program. As a result, training of licensed personnel during this interim period has not been as.effective*
as we had expected. In this particular situation, the licensed operators.were originally trained and granted their SRO licenses based on the Technical Specification which.does allow three loop operation*. The license amendment which restricts this mode of operation came approximately six months after the license was issued, _and al though operating personnel were* made aware of the restriction, _the training._ emphasis was obviously insufficient to overcome_ the more rigorous earlier training.
Therefore, in addition to the corrective action listed below, we will review the license and technical specification requirements and operating. inc.:j,.dents that have taken place to date to be sure they are incorporated into the retraining program which should resume in June. * *
- 1. An on-the-spot-change was made to OI II-1.3-1 which added Step -3.11 "Do not start a Reactor Coolant Pump while reactor is critical II I on April 12, _1977.
On April 12, 1977, a night order book entry was made to re-instruct Control Room personnel of the Reactor Coolant Pump restriction.
- 2. On April 15, _1977, a plastic tag was placed on the Operating Console as a warning to Operators that three loop operation ab6ve P-7, is not allowed.
L
Mr. J. P. O'Reilly 5-20~11 77-13-02 Technical Specification 6.8.1 requires written procedures to be established, implemented, .and maintained covering opera-tion of the*reactor coolant system.
Operating Instruction*II 1.3-3, OPERATING WITH LESS THAN FOUR REACTOR COOLANT LOOPS IN* SERVICE, SECTION 5.5, "Start-ing a Reactor Coolant Pump (RCP) During Power Operation,"
requires power level to be reduced to* below 10 percent prior_ to starting a*RCP in an idle loop.
Contrary to the above, No. 14 Reactor Coolant Pump was started in the idle loop at 10:32 a.m. on April 12, 1977, with the reactor at 25 percent power. An unplanned initi-ation of safety injection occurred as a result of adverse
The following corrective action has been taken:
An on-the-spot change added a precaution to QI II-1.3-3 on April 12,. 1977, which states, "Do not start a Reactor Coolant Pump with the reactor critical."
In response to your concern about the number and frequency of operator induced safeguard actuations, station management *has instituted a system*.which requires operator written responses to variances. in operating practices*. This system is expected to stimulate operator awareness of his actions and will indicate to management those.areas where additional training or procedure modification is required.* Also, .the Nuclear Review Board will be asked to review.the Licensed Operator Retraining Program after
- it has been in effect for six months, to verify its adequacy.
If you require additional information, we will be pleased to discuss it with you.
Very truly yours,