GE ALPS - Description

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
• T1 – FD Fault Detector
• T2 – IT Trip Supervision
• T3 – IB Blocking Supervision
• T4 – Ground Directional Trip
• T5 – Ground Directional Block
• T6 – Phase Instantaneous Overcurrent
• T7 – Ground Instantaneous Overcurrent
• T8 – Ground Time Overcurrent
• T9 – Undervoltage
• T10 – Overvoltage
b) ZONE GROUND / PHASE REACH and TIMERS TESTS
• T11 – Zone 1 Ground Reach M1G
• T12 – Zone 2 Ground Reach MTG
• T13 – Zone 3 Ground Reach M3G
• T14 – Zone 4 Ground Reach M4G
• T15 – Ground (Zone Backup) Timer
c) PHASE-TO-PHASE ZONE REACH TESTING
• T16 – Zone 1 Phase Reach M1
• T17 – Zone 2 Phase Reach MT
• T18 – Zone 3 Phase Reach M3
• T19 – Zone 4 Phase Reach M4
• T20 – Phase (Zone Backup) Timer
• 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