ABB REG670 - Page 697

Function description IEC 61850 identification Function description IEC 61850 identification
Directional Overpower
protection
GOPPDOP Transformer differential
protection, three
winding
T3WPDIF
Generator rotor
overload protection
GRPTTR Automatic voltage
control for tapchanger,
single control
TR1ATCC
Generator stator
overload protection
GSPTTR Automatic voltage
control for tapchanger,
parallel control
TR8ATCC
Directional
Underpower protection
GUPPDUP Thermal overload
protection, two time
constants
TRPTTR
1Ph High impedance
differential protection
HZPDIF Two step undervoltage
protection
UV2PTUV
Line differential
protection, 3 CT sets,
2-3 line ends
L3CPDIF
Voltage differential
protection
VDCPTOV
Line differential
protection, 6 CT sets,
3-5 line ends
L6CPDIF
Fuse failure
supervision
VDRFUF
Low active power and
power factor protection
LAPPGAPC Voltage-restrained time
overcurrent protection
VRPVOC
Negative sequence
overcurrent protection
LCNSPTOC Local acceleration logic ZCLCPSCH
Negative sequence
overvoltage protection
LCNSPTOV Scheme
communication logic
for distance or
overcurrent protection
ZCPSCH
Three phase
overcurrent
LCP3PTOC Current reversal and
weak-end infeed logic
for distance protection
ZCRWPSCH
Three phase
undercurrent
LCP3PTUC Automatic switch onto
fault logic, voltage and
current based
ZCVPSOF
Thermal overload
protection, one time
constant
LCPTTR
Under impedance
protection for generator
ZGVPDIS
Zero sequence
overcurrent protection
LCZSPTOC Fast distance
protection
ZMFCPDIS
Zero sequence
overvoltage protection
LCZSPTOV High speed distance
protection
ZMFPDIS
Line differential
coordination
LDLPSCH Distance measuring
zone, quadrilateral
characteristic for series
compensated lines
ZMCAPDIS
Additional security
logic for differential
protection
LDRGFC
Distance measuring
zone, quadrilateral
characteristic for series
compensated lines
ZMCPDIS
Loss of excitation LEXPDIS Fullscheme distance
protection, mho
characteristic
ZMHPDIS
Table continues on next page
1MRK 502 071-UEN - Section 20
Station communication
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 691
Application manual