ML20128A854

Proposed Changes to Tech Spec 4.8.1.1.2 Re Surveillance Requirements for Electrical Power Sys

ML20128A854
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	06/14/1985
From:	PORTLAND GENERAL ELECTRIC CO.
To:
Shared Package
ML20128A824	List: ML20128A820 ML20128A854
References
TAC-56812, NUDOCS 8507030051
Download: ML20128A854 (2)

Text

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LCA 116 ,

Attachment 1 l Page 1 of 2 ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

3. Verifying that samples of diesel fuel from the day tanks and the fuel storage tanks are within the acceptable limits specified in Table 1 of ASTM D975-78 when checked for viscosity, water and sediment,

4. Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the day tank,

5. Verifying the diesels start and obtain rated speed (the diesels may be idle started and warmed up prior to increasing speed to 900 rpm),

6. Verifying the generator is synchronized, loaded to 21690 kw, and operates for 2 60 minutes with both diesel engines operating, and

7. Verifying the diesel generator set is aligned to provide standby power to the associated emergency busses.

b. At least once per 6 months by:

1. Verifying the diesels start from ambient conditions,

2. Verifying the generator is synchronized, loaded to 21690 kw, and operates for 260 minutes with both diesel engines operating, and

3. Verifying the diesel generator set is aligned to provide standby power to the associated emergency busses.

c. At least once per 18 months during shutdown by:

1. Subjecting the diesels to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service,

2. Verifying the generator capability to reject a load of 2 828 kw without tripping,

< 3. Simulating a loss of offsite power with and without the

presence of a safety injection signal, and

a) Verifying de-energization of the emergency busses and

. load shedding from the emergency busses.

TROJAN-UNIT 1 3/4 8-3 Amendment No. 39, 58, 89 l

8507030051 DR 850614 p ADOCM 05000344 PDR l

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, LCA 116 Attachment 1 ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) b) Verifying the diesels start from ambient condition on the auto-start signal, energize the emergency busses with permanently connected loads, energize the auto-connected emergency loads through the applicable load sequencer and operate for 2 5 minutes while the generator is loaded with the emergency loads.

c) Verifying that all diesel generator trips, except engine overspeed, generator phase overcurrent, generator neutral overcurrent or generator loss of field, are automatically bypassed upon loss of voltage on the emergency bus and/or safety injection actuation signal.

d. At least once per 18 months by:

1. Verifying the diesel generator set operates 160 minutes while loaded to 13380 kw.

2. Verifying that the auto-connected loads to each diesel generator unit do not exceed the 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating of 4752 kw.

p 3. Verifying that each fuel transfer pump transfers fuel from its associated fuel storage tank to the day tank of each diesel via the installed cross connection lines.

i l

l TROJAN-UNIT 1 3/4 8-4 Amendment No. 39, 58, 89 i

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