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GE Power Management
LPS-D Line Protection System
5-
11
5 FUNCTIONAL TESTS (FACTORY SETTINGS)
5.3 ZONE REACH AND TIMER TESTS
5
5.3.2 T11 – ZONE 1 GROUND REACH, M1G GROUND FAULTS
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
op
, to the phase angle listed in the table below (Increase VA, VB, and VC to 75 V
when
∠
I
op
= –79°).
6.
Set the fault current,
I
op
, to 8.2 (1.6) A rms. Reduce the voltage of the faulted phase and check that the A1
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.
∠
I Degrees
Volts rms
Displayed Target
†
–49
56 to 63
–
–79
65 to 73
82 to 88
–109
56 to 63
–
†
Reference Only
Содержание LPS-D
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Страница 164: ...3 14 LPS D Line Protection System GE Power Management 3 3 PRINTED CIRCUIT BOARD MODULES 3 HARDWARE DESCRIPTION 3 ...
Страница 226: ...7 4 LPS D Line Protection System GE Power Management 7 1 RATINGS 7 SPECIFICATIONS 7 ...
Страница 284: ...10 20 LPS D Line Protection System GE Power Management 10 8 HELP MENU 10 ALPS TEST PROGRAM 10 ...
Страница 334: ...A 4 LPS D Line Protection System GE Power Management A 1 FREQUENTLY ASKED QUESTIONS APPENDIXA A ...
Страница 412: ...C 34 LPS D Line Protection System GE Power Management C 3 POINT LISTS APPENDIXC C ...
Страница 416: ...D 4 LPS D Line Protection System GE Power Management D 1 KEYPAD MENUS APPENDIXD D ...
Страница 422: ...F 2 LPS D Line Protection System GE Power Management F 1 WARRANTY INFORMATION APPENDIXF F ...
Страница 435: ...GE Power Management LPS D Line Protection System xiii INDEX INDEX tests 6 11 ZONE TIMER functional tests 5 10 ...
Страница 436: ...xiv LPS D Line Protection System GE Power Management INDEX INDEX ...