ML18100A567

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Proposed Tech Specs Re Ac Power Requirements During Switchyard Mods
ML18100A567
Person / Time
Site: Salem PSEG icon.png
Issue date: 08/24/1993
From:
Public Service Enterprise Group
To:
Shared Package
ML18100A566 List:
References
NUDOCS 9309010126
Download: ML18100A567 (4)
v • d • e


Text

3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8. 1 A.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION 3.8.1. 1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a. Two physically independent circuits between the offsite transmission network and the onsite Class lE distribution system (vital bus system),

and *

b. Three separate and independent diesel generators with:
1. Separate day tanks containing a minimum volume of 130 gallons of fuel, and
2. A common fuel storage system consisting of two storage tanks, each containing a minimum volume of 20,000 gallons of fuel, and two fuel transfer pumps.*

APPLICABILITY: MODES l, 2, 3 and 4.

ACTION:

a. With either an offsite circuit or diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirements 4.8. 1. 1. l.a and 4.8. 1. 1.2.a.2 within one hour and at 1-}f ~I least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereattert restore at least two offsite circuits and three diesel generators to OPERABLE status within 72 hourl'or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and

'** in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

b *. With one offsite circuit and one diesel generator of the above required A.C~. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirements 4.8. 1. 1. l.a and 4.8. l. 1.2.a.2 within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore at least one of the inoperable sources to OPERABLE status within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN

SALEM - UNIT 2 3/4 8-1

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ELECTRICAL POWER SYSTEMS ACTION (Continued)

I I within the foll.owing 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Restore at least two offsite c4cuits ...a-and three diesel generators to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> rom ~

the time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

c. With two of the above required offsite A.C. circuits inoperable, demonstrate the OPERABILITY of three diesel generators by performing Surveillance Requirement 4.8. 1. 1.2.a.2 within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter, unless the diesel generators are already operating; restore at least one of the inoperable offsite sources to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. With only one offsite source restored, restore at least two offsite circuits to bPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN wiihin the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
d. With two or more of the above required diesel generators inoperable, demonstrate the OPERABILITY of two offsite A.C. circuits by performing Surveillance Requirement 4.8.1.1.1.a within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore at least two of the inoperable diesel generators to OPERABLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Restore three diesel generators to
  • OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss or be in least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REQUIREMENTS 4.8. l. 1. l Two physically independent circuits between the offsite transmission network and the onsite Class lE distribution system (vital bus system) shall be:

a. Determined OPERABLE at least once per 7 days by verifying correct breaker alignments, power availability, and
b. Demonstrated OPERABLE at least once per 18 months during shutdown by transferring (manually and automatically) vital bus supply from one 13/4 kv transformer to the other 13/4 kv transformer.

..I SALEM - UNIT 2 3/4 8-2

Notes To Actions 3.8.1.1.a and 3.8.1.1.b

    • Perform Surveillance Requirement 4.8.1.1.2.a.2 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to each entry into Action Statement 3.8.1.1.a during the Unit 1 11th refueling outage for the installation of bus connections for 500/13.8 kv Station Power Transformers (SPT's). Repeat Surveillance Requirement 4.8.1.1.2.a.2 for each diesel within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> of the diesel's last successful test, unless the affected 500/13.8 kv SPT has been restored to OPERABLE status. No additional diesel testing is required during entry into Action a. for installation of the 500/13.8 kv bus connections.
      • One offsite power circuit may be inoperable for 120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br /> for installation of bus connections for 500/13.8 kv SPT T3 or T4 during the Unit 1 11th refueling outage.
  1. 120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br /> if this Action Statement is entered during installation of bus connections for 500/13.8 kv-SPT T3 or T4 during. the Unit 1 11th refueling outage~ .
  • ELECTRICAL PCWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:
a. In accordance ~1th the frequency specified in Table 4.8-1 on a STAGGERED TEST BASIS by:-
1. Verifying the fu*l level in its day tank.
2. V*rifying the diesel starts from ambient condition and accelerates to at least 900 rpm in less than or equal to 10 seconds. The generator voltage and frequency sh~11 b~ 4160 % 420 volts and 60 : l.2 Hz within l3 seconds after th* start signal. *
3. V*rify1ng the generator is synchronized, loaded to greater than or equal to 2600 kw 1n less than or equal to 60 seconds, and operates for g~atar than or equal to 60 minuteso
4. V*rifying the diesel gen*rator is aligned to provide standby pCl'fler to th* associatad vital busses.
b.
  • At least once per 31 days and after each operation of the diesel wher9 the period of operation was greater than or equal to l hour by checking for and ~moving accumulated water fom the day tanks.
c. At least once per 18 months during shutdO'#n by:
1. Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer 1 s recommendations for this class of standby service,
2. Verifying that, on rejection of a load of greater than or equal to 785 kw, th* voltage and frequency are resta~d to within 4160 % 420 volts and 60: 1.2 Hz within 4 seconds.
3. Simulating a loss of offsit1 power by itself, and:

a) Verifying de-tnergization of th* vital busses and load shedding frc* th* vital buss1s.

b) Verifying th* diesel starts on the auto-start signal, energizes th* vital buss1s with permanently connected loads within l3 seconds, energizes th* auto-connected shutdcn.1n 1oads through th* 1oad sequence.r and operates for

. greater than or* equal ta 5 minutes whtl* its g.enerato.r i!

1oad~d with the shutdoWn loads. The steady state voltage*

and frequency of the emergency busses shall be maintained

~t 4160 % 420 volts and 60 % l.2 Hz during.this test .

. 4. Verifying that on an ESF actuation test signal (without loss of offs1te power) the diesel generator starts on the auto-start signal and o~erates on standby far gr*ater than or equal to 5 minutes. The generator voltage and frequency shall be 4160 %

4ZO volts and 60 t l.2 Hz within 13 seconds after the auto-start signal; the steady state generator voltage and frequency shall be maintained within these limits during this test.

SALEM

  • UNIT 2 3/4 8-3
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