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Proposed Tech Spec Table 3.3-1,revising Operability Requirements for Reactor Trip Breakers & 4.3-1,revising Surveillance Requirements for Manual Reactor Trip,Reactor Trip Breakers & Bypass Breakers
	ML20215K838
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Site:	Trojan File:Portland General Electric icon.png
Issue date:	06/22/1987
From:	; PORTLAND GENERAL ELECTRIC CO.
To:	;
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ML20215K790	List: ML20215K786; ML20215K813; ML20215K838;
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	TAC-55383, NUDOCS 8706250456
	Download: ML20215K838 (6)
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. TABLE 3.3-1 (Continued)

ACTION '9 - With less than the Minimum' Number of Channels OPERABLE, operation may continue provided the inoperable channel is I

placed in the tripped ' condition within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

i ACTION 10 - With the number of channels. 0PERABLE one less than required.

by the. Minimum Channels OPERABLE: requirement, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or open the reactor trip. breakers within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months .

i ACTION 11 - With the number of OPERABLE channels one less than the l

Minimum Channels OPERABLE requirement, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in HOT.

1 STANDBY within'the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

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ACTION ^ 12 - With one of the ' diverse trip features (undervoltage or shunt.

trip attachment) inoperable, restore it to OPERABLE status within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or declare the breaker inoperable and apply..

ACTION'1. The breaker shall not be bypassed while one of the diverse trip features is inoperable except for the. time required for performing maintenance to' restore the breaker to OPERABLE--status.

REACTOR TRIP SYSTEM INTERLOCKS _

4 DESIGNATION CONDITION AND SETPOINT' FUNCTION P-6 With 2 of 2 Intermediate Range Prevents Lor defeats Neutron Flux Channels <6x10-Il -

the manual block of

amps, source range reactor l

trip.

P-7 With ; of 4 Power RL ge Neutron Prevents.or defeats Flux Channels 111% of RATED-the automatic block of THERMAL POWER or 1 of 2 Turbine reactor trip on:

Low impulse chamber pressure flow in more than one channels 266 psia, primary coolant loop, reactor' coolant pump under-voltage and under-f requency, turbine trip, l

pressurizer low pi essure,

-j and pressurizer high

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level.

P-8 With 2 of 4 Power Range Neutron Prevents or defeats Flux Channels 239% of RATED the automatic block of THERMAL POWER.

reactor trip on low f

coolant flow in a j

single loop.

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l TROJAN-UNIT 1 3/4 3-7 Amendment No. 33, AS, #S, 737 April 22, 1987 i

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LCAl132 E

Attachraent~ 1 Page 3 of 6 h

TABLE 3.'3-l'(Continued)-

REACTOR' TRIP' SYSTEM INTERLOCKS

. DESIGNATION.

CONDITION AND SETPOINT

~

FUNCTION P-1'O With 3 of 4 Power Range Neutron

' Prevents-or defeats the'

1

-Flux Channels.<9% of RATED-

~ manual block' of:: Power THERMAL POWER.

range low setpoint reactor trip,_ intermediate range.

reactor trip,. and inter-l mediate range rod. stops.c

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Provides input to P-7-.

P-13

'With 2 of'? Turbine-Impulse Provides' input to P-7.

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Chamber Pressure Channels

<66 psia.

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TROJAN-UNIT 1 3/4 3-8 Amendment No. 737 April 22,1987

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LCA 132 TABLE 4.3-1 (Continued)

NOTATION With the reactor trip system breakers closed and the control rod drive system capable of rod withdrawal.

The provisions of Specification 4.0.4 are not applicable.

J When below the P-6 setpoint.

When below the P-10 setpoint.

When above the P-7 setpoint.

(1) - If not performed in previous 31 days.

(2) - Heat balance only, above 15% of RATED THERMAL POWER.

Adjust channel if absolute dif ference is >2%.

(3)

- Compare incore to excore axial imbalance above 15% of RATED THERMAL POWER.

Recalibrate if absolute dif ference >3 percent.

(4) - Neutron detectors may be excluded from CHANNEL CALIBRATION.

3 (5)

- Detector plateau curves shall be obtained and evaluated.

(6)

- Incore-Excore Calibration.

(7) - Each train tested every other month.

(8)

- Setpoint verification is not applicable.

(9) - See Specification 3/4.9.2 for audio and visual requirements in MODE 6.

(10) - The reactor trip breakers shall be tested using the Automatic Trip Logic trip signal.

(11) - Each channel shall be tested at least every 92 days on a l

STAGGERED TEST BASIS.

(12) - The surveillance frequency and/or MODES specified for these channels in Table 4.3-2 are more restrictive and, therefore, applicable.

(13) - The CHANNEL FUNCTIONAL TEST shall independently verify the OPERABILITY of the undervoltage and shunt trip circuits for the Manual Reactor Trip Function. The test shall also verify the OPERABILITY of the Bypass Breaker trip circuit (s).

(14)

- The CHANNEL FUNCTIONAL TEST shall independently verify the OPERABILITY of the undervoltage and shunt trip attachments of the 1

Reactor Trip Breakers.

l (15)

- Local manual shunt trip prior to placing breaker in service.

(16) - Automatic undervoltage trip.

TROJAN-UNIT 1 3/4 3-12 Amendment No. 737 April 22, 1987

v t e Letter Sequence Other
TAC:55383, (Approved, Closed)
Initiation Request, Request Acceptance... Administration Questions Answers Results Approval, Approval Other: ML20133H405, ML20135G344, ML20138N645, ML20210G249, ML20215H197, ML20215K838
MONTHYEAR1985-09-12 [Table View]

ML20215K838

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