Negativ sequence time overcurrent protection for machines
NS2PTOC (46I2).................................................................................. 417
Identification.................................................................................... 417
Application....................................................................................... 418
Features..................................................................................... 418
Generator continuous unbalance current capability................... 419
Setting guidelines............................................................................ 421
Operate time characteristic.........................................................422
Pickup sensitivity........................................................................ 423
Alarm function.............................................................................423
Accidental energizing protection for synchronous generator
AEGPVOC (50AE)................................................................................424
Voltage-restrained time overcurrent protection VRPVOC (51V)...........426
Setting guidelines............................................................................ 428
Explanation of the setting parameters........................................428
Voltage-restrained overcurrent protection for generator and
step-up transformer.................................................................... 429
General settings......................................................................... 430
Overcurrent protection with undervoltage seal-in.......................431
Generator stator overload protection GSPTTR (49S)...........................432
Generator rotor overload protection GRPTTR (49R)............................432
Section 10 Voltage protection............................................................. 437
Two step undervoltage protection UV2PTUV (27)................................437
Identification.................................................................................... 437
Application....................................................................................... 437
Setting guidelines............................................................................ 438
Equipment protection, such as for motors and generators.........438
Table of contents
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
9
Application manual
Summary of Contents for RELION 670 SERIES REG670
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