ABB REL670 2.2 IEC - Page 14

Other settings....................................................................... 355
ZMMMXU settings................................................................358
High speed distance protection for series compensated lines
ZMFCPDIS .................................................................................... 359
Identification.............................................................................. 359
Application.................................................................................359
System earthing................................................................... 359
Fault infeed from remote end............................................... 362
Load encroachment..............................................................363
Short line application............................................................ 364
Long transmission line application....................................... 364
Parallel line application with mutual coupling....................... 365
Tapped line application........................................................ 371
Series compensation in power systems.................................... 373
Steady state voltage regulation and increase of voltage
collapse limit.........................................................................374
Increase in power transfer....................................................375
Voltage and current inversion...............................................376
Impact of series compensation on protective IED of
adjacent lines....................................................................... 384
Distance protection...............................................................385
Underreaching and overreaching schemes..........................386
Setting guidelines...................................................................... 392
General.................................................................................392
Setting of zone 1.................................................................. 393
Setting of overreaching zone................................................393
Setting of reverse zone........................................................ 394
Series compensated and adjacent lines...............................395
Setting of zones for parallel line application......................... 399
Setting of reach in resistive direction....................................400
Load impedance limitation, without load encroachment
function.................................................................................401
Zone reach setting higher than minimum load impedance...403
Parameter setting guidelines................................................404
ZMMMXU settings................................................................406
Power swing detection ZMRPSB ...................................................407
Identification.............................................................................. 407
Application.................................................................................407
General.................................................................................407
Basic characteristics.............................................................408
Setting guidelines...................................................................... 409
Power swing logic PSLPSCH ........................................................ 416
Identification.............................................................................. 416
Application.................................................................................416
Table of contents
8 Line distance protection REL670 2.2 IEC
Application manual