ML022520345

GGNS-TAC No. MB3487, Removal of Operating Mode Restrictions for Emergency Diesel Generator Testing, Revised TS Pages 3.8-7, 3.8-8, 3.8-11, 3.8-14

ML022520345
Person / Time
Site:	Grand Gulf
Issue date:	09/05/2002
From:	NRC/NRR/DLPM
To:
References
TAC BM3487
Download: ML022520345 (4)

Text

AC Sources--Operating 3.8.1 SURVEILLANCE REQUIRMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.8 ----------------- NOTE ---------------------

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

Verify manual transfer of unit power supply 18 months from the normal offsite circuit to required alternate offsite circuit.

SR 3.8.1.9 ----------------- NOTES -------------------

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

I

2. If performed with DG synchronized with offsite power, it shall be performed at a power factor

• 0.9.

Verify each DG rejects a load greater than 18 months or equal to its associated single largest post accident load and engine speed is maintained less than nominal plus 75% of the difference between nominal speed and the overspeed setpoint or 15% above nominal, whichever is lower.

(continued)

GRAND GULF 3.8-7 Amendment No. 4-2 153

AC Sources-Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.10 ------------------- NOTE -------------------

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

Verify each DG operating at a power factor 18 months 5 0.9 does not trip and voltage is maintained

• 5000 V during and following a load rejection of a load - 5450 kW and S5740 kW for OG 11 and DG 12 and > 3300 kW for DG 13.

(continued)

GRAND GULF 3.8-8 Amendment No. -2 L5_

1 3

AC Sources-Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.13 ------------------ NOTE -------------------

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

Verify each DG's automatic trips are 18 months bypassed on an actual or simulated ECCS initiation signal except:

a. Engine overspeed;

b. Generator differential current; and

c. Low lube oil pressure for DG 11 and DG 12.

(continued)

GRAND GULF 3.8-11 Amendment No. 424 -53

AC Sources--Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.17 ------------------- NOTE -------------------

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

Verify, with a DG operating in test mode 18 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. Automatically energizing the emergency loads from offsite power.

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 18 months block is within +/- 10% of design interval for each automatic load sequencer.

(continued)

GRAND GULF 3.8-14 Amendment No. 4-4 153