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Voltage ........................................................................................................................................................ 104
Current ........................................................................................................................................................ 104
DI status....................................................................................................................................................... 105
DO status..................................................................................................................................................... 105
Event record................................................................................................................................................. 105
CB Counter.................................................................................................................................................. 106
Program version........................................................................................................................................... 107
Passcode...................................................................................................................................................... 109
Record Deletion............................................................................................................................................ 111
DIN Setup .................................................................................................................................................... 113
DO Setup..................................................................................................................................................... 116
DO related with Relay................................................................................................................................... 118
DO Control.................................................................................................................................................. 122
LCD Setup.................................................................................................................................................... 124
PT Failure(Fault Detection)............................................................................................................................. 126
CB Failure(Fault Detection)............................................................................................................................ 129
Protection Blocking Function.......................................................................................................................... 132
Date Setup ................................................................................................................................................... 135
DO related with DI ....................................................................................................................................... 137
Chapter 9. Protection Relay Characteristic.........................................................................................................140
Inverse Time Curve Characteristic.................................................................................................................. 140
IEC Curves ........................................................................................................................................... 140
KEPCO Curves...................................................................................................................................... 141
Selective Ground Relay (SGR) Characteristic................................................................................................... 154
Instantaneous Time, Definite Time Characteristic............................................................................................ 155
THR Characteristic ........................................................................................................................................ 156
Motor Starting Characteristic......................................................................................................................... 162
Chapter 10. Setup Examples ...........................................................................................................................163
Automatic Power Recovery Function Setup...................................................................................................... 163
UVR Setup ............................................................................................................................................ 163
DIN Setup............................................................................................................................................. 164
Precautions........................................................................................................................................... 165
APPENDIX A Design Example ........................................................................................................................166
3-Phase 4-Wire ............................................................................................................................................ 166
3-Phase 3-Wire : 3PT, 2CT............................................................................................................................ 167
3-Phase 3-Wire : Open-Delta, 2CT ............................................................................................................... 168
Sequence Diagram....................................................................................................................................... 169
