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5 FUNCTIONAL TESTS (FACTORY SETTINGS)
1. Protection settings:
Z1DISTANCE
(101)
Z1PHASE = NO
(104)
Z1GROUND = YES
Z2DISTANCE
(201)
Z2PHASE = NO
(204)
Z2GROUND = NO
Z3DISTANCE
(301)
Z3PHASE = NO
(304)
Z3GRND = NO
Z4DISTANCE
(401)
Z4PHASE = NO
(405)
Z4GRND = NO
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 to the following values:
VA: 67 volts rms ∠0°
VB: 67 volts rms ∠–120°
VC: 67 volts rms ∠+120°
5. Set the fault current, I
when ∠ I
= –79°).
op
∠I Degrees
–49
–79
–109
†
Reference Only
6. Set the fault current, I
op
contact closes when the voltage is within the limits shown above.
7. Reduce the fault current to zero. Note that the trip target indication concurs with the fault. An AG fault is
displayed as
TRIP: AG Z1 "DIST"
where "DIST" is the displayed target.
8. Repeat the test for BG and CG faults.
GE Power Management
5.3.2 T11 – ZONE 1 GROUND REACH, M1G GROUND FAULTS
, to the phase angle listed in the table below (Increase VA, VB, and VC to 75 V
op
Volts rms
Displayed Target
56 to 63
65 to 73
56 to 63
, to 8.2 (1.6) A rms. Reduce the voltage of the faulted phase and check that the A1
LPS-D Line Protection System
5.3 ZONE REACH AND TIMER TESTS
†
–
82 to 88
–
5
5-
11
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