ML20080M528
| ML20080M528 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 09/09/1983 |
| From: | PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | |
| Shared Package | |
| ML20080M523 | List: |
| References | |
| NUDOCS 8310040191 | |
| Download: ML20080M528 (2) | |
Text
y V.,.
Attnchm:nt S ptemb2r 9, 1983 Dockets 50-277 50-278 PBAPS LIMITING CONDITTONS FOR OPERATIONS SURVEILLANCE REQUIREMENTS C. When it is determined that a channel has failed in the unsafe condition, the other RPS channels that monitor the same variable shall be functionally tested immediately before the trip system containing the failure is tripped.
The trip system containing the unsafe failure may be placed in the untripped condition during the period in which surveillance testing is being performed on the other RPS channels.
The trip system may be in the untripped position for no more that eight hours per functional trip period for this testing.
D.
Reactor Protection System Power Supply Power Supply 1** Reactor Protection System 1.**T7:e following RPS power
(. G set) protective Power Supply:
supply M
desices shall be functionally tested at.'. east once every One trip train
- per RPS MG set six months and calibrated may be in the bypassed or once each refueling outage, inoperative condition for a period of 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
If this condition cannot be satisfied, Acceptable or if both trip trains are Device Setting inoperative, the RPS bus shall be transferred to th'e alternate Undervoltage 113 + 2 Volts source or de-energized within Overvoltage.
131 { 2 Volts 30 minutes.
Underfrequency 57 Hz +.2 Hz Underfrequency Time Delay 6 see + 1 sec
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i F310040191 830929 PDR ADOCK 05000277 PDR p
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Attachment Srptembar 9, 1983 Dockets 50-277 50-278 PBAPS LIMITING COND1" IONS FdR OPERATIONS SURVEILLANCE REQUIREMENTS 2** One trip train
- of the RPS 2** The fol' lowing RPS alternate alternate power supply may power supply protective be in the bypassed or devices shall be functionally inoperative condition for tested at least once every six a period of 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
If this months and calibrated once condition cannot be satisfied, each refueling outage.
or if both trip trains are inoperative, the RPS bus'shall be transferred to the RPS MG Acceptable set or de-energized within Device Setting 30 minutes.
Undervoltage 1131 2 Volts Overvoltage 1311 2 Volts Underfrequency 57 Hz 1 2 Hz A trip train consists of one breaker, one undervoltage relay, one overvoltage relay, one underfrequency relay, one time delay relay
(.MG set only), and the associated logic.
Effective upoa installation of the protective trip devices.
- 36a -
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