Description IEC 61850 IEC 60617 ANSI
Directional earth-fault protection, low stage DEFLPDEF I0> -> 67N-1
Directional earth-fault protection, high stage DEFHPDEF I0>> -> 67N-2
Third harmonic based stator earth-fault
protection H3EFPSEF
dUo(3H)>/
Uo(3H)< 27/59THD
High-impedance based restricted earth-fault
protection HREFPDIF dI0Hi> 87NH
Rotor earth-fault protection MREFPTOC Io>R 64R
Negative-sequence overcurrent protection
for machines MNSPTOC I2>G/M 46G/46M
Three-phase thermal overload protection,
two time constants T2PTTR 3Ith>T/G 49T/G
Three-phase current inrush detection INRPHAR 3I2f> 68
Transformer differential protection for two-
winding transformers TR2PTDF 3dI>T 87T
High-impedance or flux-balance based
differential protection for machines MHZPDIF 3dIHi>G/M 87GH/87MH
Stabilized differential protection for
machines MPDIF 3dI>G/M 87G/87M
Three-phase overvoltage protection PHPTOV 3U> 59
Three-phase undervoltage protection PHPTUV 3U< 27
Positive-sequence overvoltage protection PSPTOV U1> 47O+
Positive-sequence undervoltage protection PSPTUV U1< 47U+
Negative-sequence overvoltage protection NSPTOV U2> 47O-
Residual overvoltage protection ROVPTOV U0> 59G
Directional reactive power undervoltage
protection
DQPTUV Q>-->,3U< 32Q,27
Reverse power/directional overpower
protection
DOPPDPR P> 32R/32O
Underpower protection DUPPDPR P< 32U
Frequency gradient protection DAPFRC df/dt> 81R
Overfrequency protection DAPTOF f> 81O
Underfrequency protection DAPTUF f< 81U
Low voltage ride through protection function LVRTPTUV U<RT 27RT
Overexcitation protection OEPVPH U/f> 24
Voltage vector shift protection VVSPPAM VS 78V
Three-phase underexcitation protection UEXPDIS X< 40
Three-phase underimpedance protection UZPDIS Z< GT 21GT
Circuit breaker failure protection CCBRBRF 3I>/I0>BF 51BF/51NBF
Tripping logic TRPPTRC I -> O 94
Multipurpose analog protection MAPGAPC MAP MAP
Control
Bay control QCCBAY CBAY CBAY
Interlocking interface SCILO 3 3
Table continues on next page
1MRS757582 C Section 1
Introduction
REG630 7
Application Manual
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