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6-
14
LPS-D Line Protection System
GE Power Management
6.5 ZONE REACH TESTS
6 FUNCTIONAL TESTS (USER SETTINGS)
6
6.5.3 T12 – ZONE 1 GROUND REACH TEST, M1G GROUND FAULTS
1.
Protection Settings:
Z1DISTANCE
(101)
Z1PHASE = NO
(104)
Z1GROUND = YES
(105)
Z1GRDREACH = [_________]
Ω
,
V
NOM
1
= [_________] V,
I
T
= [_________] A,
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
op
, phase angle to
øI
= [________], lagging.
6.
Set the fault current,
I
op
, to
I
T
= [________] amps rms. Reduce the voltage of the faulted phase and check
that the A1 contact closes when the voltage is within 7% of
V
NOM
.
7.
Reduce the fault current to zero.
8.
Return the Zone 1 phase, Z1PHASE, to your specific setting.
6.5.4 T13 – ZONE 2 GROUND REACH, MTG GROUND FAULTS
1.
Protection Settings:
Z2DISTANCE
(201)
Z2PHASE = NO
(204)
Z2GROUND = YES
(206)
Z2GRDREACH = [_________] ohms,
V
NOM
2
= [_________] V,
I
T
= [_________] A,
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
op
, phase angle to
øI
= [________]°, lagging.
6.
Set the fault current to
I
T
= [________] amps rms. Reduce the voltage of the faulted phase and check that
the A1 contact closes when the voltage is within 7% of
V
NOM
.
7.
Reduce the fault current to zero.
8.
Return Zone 2 phase, Z2PHASE, to your specific setting.
Summary of Contents for LPS-D
Page 2: ......
Page 4: ......
Page 226: ...7 4 LPS D Line Protection System GE Power Management 7 1 RATINGS 7 SPECIFICATIONS 7 ...
Page 284: ...10 20 LPS D Line Protection System GE Power Management 10 8 HELP MENU 10 ALPS TEST PROGRAM 10 ...
Page 412: ...C 34 LPS D Line Protection System GE Power Management C 3 POINT LISTS APPENDIXC C ...
Page 416: ...D 4 LPS D Line Protection System GE Power Management D 1 KEYPAD MENUS APPENDIXD D ...
Page 422: ...F 2 LPS D Line Protection System GE Power Management F 1 WARRANTY INFORMATION APPENDIXF F ...
Page 436: ...xiv LPS D Line Protection System GE Power Management INDEX INDEX ...