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5 FUNCTIONAL TESTS (FACTORY SETTINGS)
1. For this test remove the relay from test mode.
2. Record the pre-test values for all Protection settings used in this test.
3. Protection Settings:
Z1DISTANCE
(101)
Z1PHASE= NO
(104)
Z1GROUND = NO
Z2DISTANCE
(201)
Z2PHASE = YES
(204)
Z2GROUND= NO
(209)
Z2P_TIME = 1.0
(210)
Z2G_TIME = 1.0
Z3DISTANCE
(301)
Z3PHASE = YES
(304)
Z3GRND = NO
(307)
Z3P_TIME = 3.0
(308)
Z3G_TIME = 3.0
Z4DISTANCE
(401)
Z4PHASE = YES
(405)
Z4GRND = NO
(410)
Z4P_TIME = 5.0
(411)
Z4G_TIME = 5.0
OVERCUR
(601)
50 = NO
(605)
50G = NO
(610)
51G = NO
OS BLOCKING
(1603) BLOCKWHAT = 3 (BLKNONE)
OUTPUTS
(2007) A1 = Z2PTMR; Index 132
a) ZONE2 TIMER
4. Connect the relay as shown in Figure 5–3: PHASE-REACH TIMER TEST CONNECTIONS on page 5–23
for an AB fault.
5. Set the voltage inputs as follows: VA: 55 V rms ∠0°, VB: 55 V rms ∠–120°, VC: 67 V rms ∠+120°.
6. Set the phase angle of the fault current, ∠ I
7. Apply the fault current at 6.7 (1.4) amps rms to the relay and start the Precision Timer (the fault current
should not be ramped but applied at that level). This is an AB fault that is within pickup of all four zones.
8. Stop the timer when the A1 contact closes, and reduce the fault current to zero. Verify that the trip target
indication shows a ZONE2 trip, such as: TRIP AB Z2. This verifies that the second zone tripped. The time
for the trip should be in the range 0.9 to 1.1 seconds.
9. Leave the voltages at the values of step 4.
GE Power Management
5.4 PHASE-TO-PHASE ZONE REACH TESTING
5.4.5 T20 – PHASE (ZONE BACK-UP) TIMER TESTS
, to –55°.
op
LPS-D Line Protection System
5
5-
21
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