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5 FUNCTIONAL TESTS (FACTORY SETTINGS)
1. Protection settings:
OVERCURRNT
(601)
50 = YES
(602)
50_DIRCNL = NO
(603)
50PICKUP = 5.0 (1.0)
2. Connect the relay as shown in Figure 5–1: PHASE-TO-PHASE TEST CONNECTIONS on page 5–7 for a
phase AB, BC, or CA fault. Note that the leading phase is 180 degrees out of Phase with the line to which
it is shorted.
3. Set the relay into test mode 43 (Phase Overcurrent). The LUI should display
INST PHS OVRC ON
4. Set I
to 2.8 (0.6) A rms and apply to the relay. The A1 contact should close. Lower I
op
at which point the A1 contact should open.
5. Reduce I
to 0 A.
op
6. Restore the following Protection settings
OVERCUR
(602)
50_DIRCNL = YES
(603)
50PICKUP = 20.0 (4.0) Amps
1. Protection settings:
OVERCURRNT
(605)
50G = YES
(606)
50G_DIRCNL = NO (Directnl ctrl off)
(607)
50GPICKUP = 2.5 (0.5) Amps
(608)
50GRESTNT = 0
2. Connect the relay as shown in Figure 4–3: PHASE TO GROUND TEST CONNECTIONS on page 4–14.
3. Set the relay into test mode 44 (Ground Overcurrent). The LUI displays
INST GND OVRC ON
4. Set I
to 4.0 (0.80) A rms and apply to the relay. The A1 contact should close. Lower I
op
rms, at which point the A1 contact should open.
5. Reduce I
to zero.
op
6. Restore the following settings
OVERCURRNT
(605)
50G_DIRCNL = YES
(605)
50GPICKUP = 10 (2.0) Amps
GE Power Management
5.2.6 T6 – PHASE INSTANTANEOUS OVERCURRENT 50
5.2.7 T7 – GROUND INSTANTANEOUS OVERCURRENT 50G
LPS-D Line Protection System
5.2 MEASURING UNIT TESTS
to 2.0 (0.4) A rms,
op
to 2.4 (0.40) A
op
5
5-
5
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