GE LPS-O - Page 8

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LPS-O Line Protection System
GE Power Management
TABLE OF CONTENTS
5.1.8 T7 – GROUND INSTANTANEOUS OVERCURRENT TEST .................... 5-5
5.1.9 T8 – GROUND TIME OVERCURRENT TEST .......................................... 5-6
5.1.10 T9 – UNDERVOLTAGE TEST................................................................... 5-8
5.1.11 T10 – OVERVOLTAGE TEST ................................................................... 5-8
5.2 ZONE REACH AND TIMER TESTS
5.2.1 GENERAL ZONE REACH TESTING CONSIDERATIONS ....................... 5-9
5.3 PHASE-TO-PHASE ZONE REACH TESTING
5.3.1 T11 – ZONE 1 PHASE REACH TEST..................................................... 5-10
5.3.2 T12 – ZONE 2 PHASE REACH TEST..................................................... 5-11
5.3.3 T13 – ZONE 3 PHASE REACH TEST..................................................... 5-12
5.3.4 T14 – ZONE 4 PHASE REACH............................................................... 5-13
5.3.5 T15 – 3 PHASE FAULT WITH TRANSFORMER COMPENSATION ...... 5-14
5.3.6 T16 – PHASE (ZONE BACKUP) TIMER TEST....................................... 5-16
a ZONE1 TIMER......................................................................................... 5-17
b ZONE2 TIMER......................................................................................... 5-17
c ZONE3 TIMER......................................................................................... 5-17
d ZONE4 TIMER......................................................................................... 5-18
5.4 MOB TESTING
5.4.1 T17 – OUT-OF-STEP BLOCK ................................................................. 5-20
5.4.2 T18 – OUT-OF-STEP TRIP TEST........................................................... 5-21
5.5 END OF TEST WITH FACTORY SETTINGS
5.5.1 ENDING TESTS ...................................................................................... 5-22
6. FUNCTIONAL TESTS
(USER SETTINGS)
6.1 LPS-O FUNCTIONAL TESTS
6.1.1 DESCRIPTION .......................................................................................... 6-1
a MEASURING UNIT TESTS ....................................................................... 6-1
b ZONE PHASE REACH TESTS.................................................................. 6-1
6.1.2 DRAWINGS AND REFERENCES............................................................. 6-2
a DRAWINGS ............................................................................................... 6-2
b REFERENCE............................................................................................. 6-2
6.1.3 GENERAL INSTRUCTIONS...................................................................... 6-2
6.2 MEASURING UNIT TESTS
6.2.1 T1 – FAULT DETECTOR TEST ................................................................6-3
6.2.2 T2 – IT TRIP SUPERVISION TEST........................................................... 6-3
6.2.3 T3 – IB BLOCKING SUPERVISION TEST................................................ 6-3
6.2.4 T4 – GROUND DIRECTIONAL TRIP TEST .............................................. 6-4
6.2.5 T5 – GROUND DIRECTIONAL BLOCK TEST .......................................... 6-4
6.2.6 T6 – PHASE INSTANTANEOUS OVERCURRENT TEST........................ 6-4
6.2.7 T7 – GROUND INSTANTANEOUS OVERCURRENT TEST .................... 6-5
6.2.8 T8 – GROUND TIME OVERCURRENT TEST .......................................... 6-6
6.2.9 T9 – UNDERVOLTAGE TEST................................................................... 6-6
6.2.10 T10 – OVERVOLTAGE TEST ................................................................... 6-7
6.3 ZONE REACH TESTS
6.3.1 WARNING.................................................................................................. 6-8
6.3.2 GENERAL CONSIDERATIONS ................................................................ 6-8
6.3.3 ZONE 1 TO 4 PHASE-TO-PHASE REACH CALCULATIONS.................. 6-8
6.3.4 T11 – ZONE 1 PHASE REACH TEST..................................................... 6-10
6.3.5 T12 – ZONE 2 PHASE REACH TEST..................................................... 6-11
6.3.6 T13 – ZONE 3 PHASE REACH TEST..................................................... 6-12
6.4 BACKUP PROTECTION TESTS
6.4.1 T14 – ZONE 4 PHASE REACH TEST..................................................... 6-14
6.4.2 T15 – 3 PHASE FAULT WITH TRANSFORMER COMPENSATION ...... 6-15