ML20236G843
| ML20236G843 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 10/30/1987 |
| From: | WISCONSIN ELECTRIC POWER CO. |
| To: | |
| Shared Package | |
| ML20236G842 | List: |
| References | |
| NUDOCS 8711030313 | |
| Download: ML20236G843 (1) | |
Text
m c.
If the 13.8/4.16 KV auxiliary transformers-are_ reduced to only one,-
~
the reactor associated-dith:the out'of service transformer must be-placed in the hot shutdown condition.
d.
Either bus'A03 or A04 may be'out of service for a period:not exceeding' 7 days provided both diesel generators are operable'and the associated-diesel generator is operating and providing' power to the engineered safeguard bus normally supplied by the out of service bus.
e.
One diesel generator may be' inoperable for a period not exceeding 7.l days provided the other diesel; generator is tested daily-'to ensure operability and the engineered safety features associated with this diesel generator shall'be operable.*
l' f.
One of the batteries 005 or D06 may be in' operable for a period not' exceeding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> provided the other three batteries and four battery chargers remain operable with one charger carrying the'DC loads of each DC main distribution bus.
g.
One of the batteries D105 or D106 may be inoperable ~for a period not exceeding 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> provided the other three batteries and four. battery chargers remain operable with one charger carryi.ng the DC loads'of each DC main distribution bus.
Basis
~
This two unit plant has-four 345 KV transmission line interconnections. 'A 20 MW-gas turbine generator and two 2850 KW diesel-generators are installed at'the plant.
All of these energy sources will be utilized to provide depth and reliability of service to the Engineered Safeguards equipment through redundant i
station auxiliary power supply systems.
l The electrical system equipment is arranged so that no single contingency can inactivate enough safeguards equipment to jeopardize the plant safety...The 480-volt equipment is arranged on 4 buses per unit. The 4160-volt equipment is supplied from 6 buses per unit.
d l'
- 0ne diesel generator may be inoperable'for a period not exceeding 10. days in order to complete the repair or replacement of emergency diesel generator components.
'i l
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