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6.5 ZONE REACH TESTS
1. Protection Settings:
Z1DISTANCE
(101)
Z1PHASE = NO
(104)
Z1GROUND = YES
Z1GRDREACH = [_________] Ω,
(105)
V
= [_________] V,
NOM 1
I
= [_________] A,
T
øI
= [_________]°
1
2. Connect the relay as shown in Figure 4–3: PHASE TO GROUND TEST CONNECTIONS on page 4–14 for
the appropriate phase under test.
3. Set the relay into test mode 14 (Any Zone1 Ground). The LUI displays
ANY Z1 GRND ON
4. Set the voltage inputs as follows: VA: 67 V rms ∠0°, VB: 67 V rms ∠–120°, VC: 67 V rms ∠–240°.
5. Set the fault current, I
6. Set the fault current, I
that the A1 contact closes when the voltage is within 7% of V
7. Reduce the fault current to zero.
8. Return the Zone 1 phase, Z1PHASE, to your specific setting.
1. Protection Settings:
6
Z2DISTANCE
(201)
Z2PHASE = NO
(204)
Z2GROUND = YES
(206)
Z2GRDREACH = [_________] ohms,
V
= [_________] V,
NOM 2
I
= [_________] A,
T
øI
= [_________]°,
2
2. Connect the relay as shown in Figure 4–3: PHASE TO GROUND TEST CONNECTIONS on page 4–14 for
the appropriate phase under test.
3. Set the relay to the Zone 2 ground test mode for the appropriate phase under test. The LUI displays, for
instance,
ZONE 2 AG ON
4. Set the voltage inputs as follows: VA: 67 V rms ∠0°, VB: 67 V rms ∠–120°, VC: 67 V rms ∠–240°.
5. Set the fault current, I
6. Set the fault current to I
the A1 contact closes when the voltage is within 7% of V
7. Reduce the fault current to zero.
8. Return Zone 2 phase, Z2PHASE, to your specific setting.
6-
14
6.5.3 T12 – ZONE 1 GROUND REACH TEST, M1G GROUND FAULTS
, phase angle to øI = [________], lagging.
op
, to I
= [________] amps rms. Reduce the voltage of the faulted phase and check
op
T
6.5.4 T13 – ZONE 2 GROUND REACH, MTG GROUND FAULTS
, phase angle to øI = [________]°, lagging.
op
= [________] amps rms. Reduce the voltage of the faulted phase and check that
T
LPS-D Line Protection System
6 FUNCTIONAL TESTS (USER SETTINGS)
.
NOM
.
NOM
GE Power Management
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