ABB Relion 670 series - Document Conventions and Formatting

Parallel line application with mutual coupling............................. 163
Tapped line application...............................................................170
Series compensation in power systems..................................... 173
Challenges in protection of series compensated and adjacent
power lines................................................................................. 181
Impact of series compensation on protective IED of adjacent
lines............................................................................................ 193
Distance protection.....................................................................194
Setting guidelines............................................................................ 202
General.......................................................................................202
Setting of zone1..........................................................................202
Setting of overreaching zone......................................................203
Setting of reverse zone...............................................................204
Series compensated and adjacent lines.....................................204
Setting of zones for parallel line application............................... 210
Setting of reach in resistive direction..........................................212
Load impedance limitation, without load encroachment function212
Load impedance limitation, with load encroachment function
activated..................................................................................... 214
Setting of minimum operating currents.......................................214
Setting of timers for distance protection zones...........................215
Phase selection, quad, fixed angle, load encroachment FDPSPDIS
(21)....................................................................................................... 215
Identification.................................................................................... 215
Identification............................................................................... 215
Application....................................................................................... 216
Setting guidelines............................................................................ 216
Load encroachment characteristics............................................216
Resistive reach with load encroachment characteristic..............222
Minimum operate currents..........................................................223
Distance measuring zones, quadrilateral characteristic ZMQPDIS
(21), ZMQAPDIS (21), ZDRDIR (21D)..................................................223
Identification.................................................................................... 223
Application....................................................................................... 224
System grounding.......................................................................224
Fault infeed from remote end..................................................... 227
Load encroachment....................................................................228
Short line application.................................................................. 229
Long transmission line application..............................................230
Parallel line application with mutual coupling............................. 231
Tapped line application...............................................................239
Table of contents
4 Line distance protection REL670 2.2 ANSI
Application manual