ML070640065

Technical Specification, AC Sources - Operating 3.8.1

ML070640065
Person / Time
Site:	Columbia
Issue date:	03/23/2007
From:	Lyon C NRC/NRR/ADRO/DORL/LPLIV
To:	Parrish J Energy Northwest
Lyon C Fred, NRR/DORL/LPL4, 301-415-2296
Shared Package
ML070640057	List: ML070640060 ML070640065
References
TAC MD2113
Download: ML070640065 (5)

Text

AC Sources -Operating 3.8.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.1.11 -------------------NOTES -------------------

1. All DG starts may be preceded by an engine prelube period.

2. This Surveillance shall not be performed in MODE 1. 2. or 3 (not applicable to DG-3). However, credit may be taken for unplanned'events that satisfy this SR.

Verify on an actual or simulated loss of 24 months offsite power signal:

a. De-energization of emergency buses;

b. Load shedding from emergency buses for Divisions 1 and 2; and

c. DG auto-starts from standby condition and:

1. energizes permanently connected loads in < 15 seconds for DG-1 and DG-2, and in < 18 seconds for DG-3.

2. energizes auto-connected shutdown loads,

3. maintains steady state voltage

> 3910 V and < 4400 V;

4. maintains steady state frequency

> 58.8 Hz and < .61.2 Hz, and

5. supplies permanently connected and auto-connected shutdown loads for

> 5 minutes.

(continued)

Columbia Generating Station 3.8.1-10 Amendment No. 4149,1-69-8-1 203

A AC Sources-Operating 3.8.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.1.12 ------------------- NOTES -------------------

1. All DG starts may be preceded by an engine prelube period.

2. This Surveillance shall not be performed in MODE 1 or 2 (not applicable to DG-3). However, credit may be taken for unplanned events that satisfy this SR.

Verify on an actual or simulated Emergency 24 months Core Cooling System (ECCS) initiation signal each required DG auto-starts from standby condition and:

a. For DG-1 and DG-2, in < 15 seconds achieves voltage > 3910 V, and after steady state conditions are reached, maintains voltage > 3910 V and 4400 V and, for DG-3. in 15 seconds achieves voltage 3910 V. and after steady state conditions are reached, maintains voltage > 3910 V and < 4400 V;

b. In < 15 seconds, achieves frequency

> 58.8 Hz and after steady state conditions are achieved, maintains frequency 2 58.8 Hz and < 61.2 Hz:

c. Operates for > 5 minutes;

d. Permanently connected loads remain energized from the offsite power system; and

e. Emergency loads are auto-connected to the offsite power system.

(continued)

Columbia Generating Station 3.8.1-11 Amendment No. "-n 203

4 AC Sources -Operating 3.8.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.1.16 -------------------NOTE--------------------

This Surveillance shall not be performed in MODE 1, 2. or 3 (not applicable to DG-3).

However, credit may be taken for unplanned I events that satisfy this SR.

Verify each required DG: 24 months

a. Synchronizes with offsite power source while loaded with emergency loads upon a simulated restoration of offsite power;

b. Transfers loads to offsite power source; and

c. Returns to ready-to-load operation.

SR 3.8.1.17 ------------------- NOTE ---------*.---------

Credit may be taken for unplanned events that satisfy this SR.

Verify, with a OG operating in test mode 24 months and connected to its bus, an actual or simulated ECCS initiation signal overrides the test mode by:

a. Returning DG to ready-to-load operation; and

b. Automaticallyenergizing the emergency load from offsite power.

(continued)

Columbia Generating Station 3.8.1-15 Amendment No. 4&9,16-,17 203

AC Sources-Operating 3.8.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREOUENCY SR 3.8.1.18 ------------------ NOTE ---------------------

This Surveillance shall not be performed in MODE 1, 2. or 3. However, credit may be taken for unplanned events that satisfy this SR.

Verify interval between each sequenced load 24 months block is within +/- 10% of design interval for each time delay relay.

SR 3.8.1.19 ------------------ NOTES

1. All DG starts may be preceded by an engine prelube period.

2. This Surveillance shall not be performed in MODE 1, 2, or 3 (not applicable to DG-3). However, credit I may be taken for unplanned'events that satisfy this SR.

Verify, on an actual or simulated loss of 24 months offsite power signal in conjunction with an actual or simulated ECCS initiation signal:

a. De-energization of emergency buses;

b. Load shedding from emergency buses for DG-1 and DG-2; and

c. DG auto-starts from standby condition and:

1. energizes permanently connected loads in < 15 seconds,

2. energizes auto-connected emergency loads, (continued)

Columbia Generating Station 3.8.1 -16 Amendment No. 49,19,181- 203

AC Sources -Operating 3.8.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.1.19 (continued)

3. maintains steady state voltage k 3910 V and < 4400 V.

4. maintains steady state frequency

Ž 58.8 Hz and < 61.2 Hz, and

5. supplies permanently connected and auto-connected emergency loads for

> 5 minutes.

SR 3.8.1.20 ------------------- NOTE --------------------

All DG starts may be preceded by an engine prelube period.

Verify, when started simultaneously from 10 years standby condition, DG-1 and DG-2 achieves, in < 15 seconds, voltage > 3910 V and frequency 2 58.8 Hz, and DG-3 achieves, in

< 15 seconds, voltage > 3910 V and frequency > 58.8 Hz.

Columbia Generating Station 3.8.1-17 Amendment No. 149.-69,181- 203