ABB REG670 - Page 12

Application.................................................................................275
Setting guidelines...................................................................... 278
Loss of excitation LEXPDIS............................................................281
Identification.............................................................................. 281
Application.................................................................................281
Setting guidelines...................................................................... 287
Sensitive rotor earth fault protection, injection based ROTIPHIZ .. 290
Identification.............................................................................. 290
Application.................................................................................290
Rotor earth fault protection function..................................... 291
Setting guidelines...................................................................... 294
Setting injection unit REX060...............................................294
Connecting and setting voltage inputs................................. 295
Settings for sensitive rotor earth fault protection,ROTIPHIZ 297
100% stator earth fault protection, injection based STTIPHIZ .......299
Identification.............................................................................. 299
Application.................................................................................299
100% Stator earth fault protection function.......................... 300
Setting guidelines...................................................................... 305
Setting injection unit REX060...............................................305
Connecting and setting voltage inputs................................. 306
100% stator earth fault protection........................................ 307
Under impedance protection for generators and transformers
ZGVPDIS........................................................................................308
Identification.............................................................................. 308
Application.................................................................................308
Operating zones................................................................... 310
Zone 1 operation.................................................................. 311
Zone 2 operation.................................................................. 311
Zone 3 operation.................................................................. 312
CT and VT positions.............................................................312
Undervoltage seal-in function...............................................313
Load encroachment for zone 2 and zone 3..........................313
External block signals...........................................................314
Setting Guidelines..................................................................... 314
General.................................................................................314
Load encroachment..............................................................315
Under voltage seal-in........................................................... 316
Rotor earth fault protection using CVGAPC................................... 317
Section 9 Current protection.........................................................319
Instantaneous phase overcurrent protection PHPIOC .................. 319
Identification.............................................................................. 319
Application.................................................................................319
Table of contents
6 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual