GE Power Management
ALPS Advanced Line Protection System
5-1
5 FUNCTIONAL TESTS (FACTORY SETTINGS)
5.1 TEST SUMMARY
5
5 FUNCTIONAL TESTS (FACTORY SETTINGS) 5.1 TEST SUMMARY
5.1.1 DESCRIPTION
a) MEASURING UNIT TESTS
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T1 – FD Fault Detector
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T2 – IT Trip Supervision
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T3 – IB Blocking Supervision
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T4 – Ground Directional Trip
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T5 – Ground Directional Block
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T6 – Phase Instantaneous Overcurrent
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T7 – Ground Instantaneous Overcurrent
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T8 – Ground Time Overcurrent
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T9 – Undervoltage
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T10 – Overvoltage
b) ZONE GROUND / PHASE REACH and TIMERS TESTS
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T11 – Zone 1 Ground Reach M1G
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T12 – Zone 2 Ground Reach MTG
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T13 – Zone 3 Ground Reach M3G
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T14 – Zone 4 Ground Reach M4G
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T15 – Ground (Zone Backup) Timer
c) PHASE-TO-PHASE ZONE REACH TESTING
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T16 – Zone 1 Phase Reach M1
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T17 – Zone 2 Phase Reach MT
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T18 – Zone 3 Phase Reach M3
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T19 – Zone 4 Phase Reach M4
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T20 – Phase (Zone Backup) Timer
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T21 – Out-of-Step Reach MOB
Refer to Section 4.1: OVERVIEW for information on beginning functional tests.
Contact A1 will chatter when the unit under test is near the threshold.
Do not allow this to continue.
Remove the test current. A single contact closure is enough to determine that the unit picked up.
Before starting to test the ALPS, download all the relay settings to your PC using the ALPS-Link program
CAUTION
CAUTION