Operation principle.................................................................... 191
Operating quantity within the function.................................. 191
Internal polarizing................................................................. 192
External polarizing for earth-fault function............................195
Directional detection for earth fault function......................... 195
Base quantities within the protection....................................195
Internal earth-fault protection structure................................ 195
Four residual overcurrent steps............................................195
Directional supervision element with integrated
directional comparison function............................................197
Second harmonic blocking element..................................... 199
Switch on to fault feature......................................................201
Technical data........................................................................... 203
Four step directional negative phase sequence overcurrent
protection NS4PTOC .....................................................................204
Identification.............................................................................. 204
Functionality.............................................................................. 204
Function block........................................................................... 205
Signals.......................................................................................205
Settings......................................................................................206
Monitored data...........................................................................211
Operation principle.................................................................... 211
Operating quantity within the function.................................. 211
Internal polarizing facility of the function.............................. 212
External polarizing for negative sequence function..............213
Internal negative sequence protection structure.................. 213
Four negative sequence overcurrent stages........................ 213
Directional supervision element with integrated
directional comparison function............................................214
Technical data........................................................................... 217
Sensitive directional residual overcurrent and power protection
SDEPSDE ..................................................................................... 217
Identification.............................................................................. 217
Functionality.............................................................................. 218
Function block........................................................................... 219
Signals.......................................................................................220
Settings......................................................................................221
Monitored data...........................................................................223
Operation principle.................................................................... 223
Function inputs..................................................................... 223
Technical data........................................................................... 229
Thermal overload protection, one time constant, Celsius/
Fahrenheit LCPTTR/LFPTTR.........................................................230
Identification.............................................................................. 230
Table of contents
Line distance protection REL650 2.2 IEC
5
Technical manual
Summary of Contents for RELION 650 SERIES
Page 1: ...RELION 650 SERIES Line distance protection REL650 Version 2 2 Technical manual ...
Page 2: ......
Page 46: ...40 ...
Page 56: ...50 ...
Page 164: ...158 ...
Page 264: ...258 ...
Page 304: ...298 ...
Page 320: ...314 ...
Page 338: ...332 ...
Page 438: ...432 ...
Page 468: ...462 ...
Page 534: ...528 ...
Page 646: ...640 ...
Page 660: ...654 ...
Page 676: ...670 ...
Page 800: ...794 ...
Page 836: ...830 ...
Page 890: ...884 ...
Page 894: ...888 ...
Page 940: ...934 ...
Page 941: ...935 ...