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4 ACCEPTANCE TESTS
1. Settings:
40-2
(703) CENTER = 11 (55)
(704) RADIUS = 8.5 (42.5)
(705) TL13 = 2
2. Connect relay as shown in Figure 4–8: STANDARD FUNCTIONAL TEST CONNECTIONS on page 4–26.
3. Set up relay in test mode for the 40-2 function; 40-2 ON will be displayed on the MMI.
4. Using a 60 Hz source, set the voltage inputs to: VA = 35 V rms ∠0°, VB = 35 V rms ∠–120°, and VC = 35 V
rms ∠–240°. Set the current inputs according to Table 4–2: CURRENT INPUTS FOR TESTS T8 & T9 on
page 4–22.
5. The following results should be obtained:
Tests A & C : Test pickup and test trip do not operate.
Tests B & D : Test pickup operates immediately and test trip operates in 2.0 to 2.1 seconds.
1. Settings:
32-1
(803) SQ TR EN = YES [1/Y]
(804) REV PWR = 1.5 (0.3)
(805) TL1 = 5
DIG INP
(2501) SELBKDI1 = NO BLK (0)
2. Connect relay as shown in Figure 4–8: STANDARD FUNCTIONAL TEST CONNECTIONS on page 4–26.
3. Set up relay in test mode for the 32-1 function; 32-1 ON will be displayed on the MMI.
4. Using a 60 Hz source set the voltage inputs to: VA = 20 V rms ∠0°, VB = 20 V rms ∠–120°, and VC = 20 V
rms ∠–240°. Set the current input to IA = 0.1 (0.02) A rms ∠180°. Phases B and C should have no current.
Verify that test pickup operates and test trip do not operate.
5. Reduce IA to 0 A.
6. Apply DC across DI2 (BG6—BG5). Using the MMI and the INFORMATION–VALUES command, verify that
INLET VLV = CLOSED.
7. Set the current input to IA = 0.1 (0.02) A rms ∠180° and verify that the test pickup operates immediately
and the test trip operates in 5.0 to 5.05 seconds.
8. Reduce IA to 0 A and remove DC from DI2 (BG6—BG5). Using the MMI and the INFORMATION–VALUES
command, verify that INLET VLV = OPEN. Check that the test trip contact has dropped out.
9. Change the following setting:
(803) SQ TR EN = NO [3/N]
10. Repeat steps 7 to 8.
GE Power Management
4.7.6 T9: LOSS OF FIELD PROTECTION ZONE 2, 40-2
4.7.7 T10: ANTI-MOTORING & SEQUENTIAL TRIP SUPERVISION 32-1
DGP Digital Generator Protection System
4.7 PROTECTION TESTS
4-
4
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