ABB RELION 670 SERIES REG670 - Page 11

Load encroachment....................................................................204
Short line application
.................................................................. 205
Long transmission line application
..............................................206
Parallel line application with mutual coupling............................. 207
Tapped line application...............................................................214
Setting guidelines............................................................................ 216
General.......................................................................................216
Setting of zone 1.........................................................................217
Setting of overreaching zone......................................................217
Setting of reverse zone...............................................................218
Setting of zones for parallel line application............................... 219
Setting the reach with respect to load........................................ 220
Zone reach setting lower than minimum load impedance.......... 221
Zone reach setting higher than minimum load impedance.........223
Other settings............................................................................. 224
ZMMMXU settings...................................................................... 227
High speed distance protection for series compensated lines
ZMFCPDIS (21).................................................................................... 228
Identification.................................................................................... 228
Application....................................................................................... 228
System grounding.......................................................................229
Fault infeed from remote end..................................................... 231
Load encroachment....................................................................232
Short line application.................................................................. 233
Long transmission line application..............................................234
Parallel line application with mutual coupling............................. 235
Tapped line application...............................................................242
Series compensation in power systems.......................................... 245
Steady state voltage regulation and increase of voltage
collapse limit............................................................................... 245
Increase in power transfer.......................................................... 246
Voltage and current inversion.....................................................247
Impact of series compensation on protective IED of
adjacent lines..............................................................................256
Distance protection.....................................................................257
Underreaching and overreaching schemes................................258
Setting guidelines............................................................................ 265
General.......................................................................................265
Setting of zone 1.........................................................................266
Setting of overreaching zone......................................................266
Table of contents
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 5
Application manual