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Line distance protection REL670
Version 2.2
IEC 61850 or function
name
ZCPSCH
ZPCPSCH
ZCRWPSCH
ZPCWPSCH
ZCLCPSCH
ECPSCH
ECRWPSCH
DTT
Table 8. Direct transfer trip DTT
Function name
LAPPGAPC
COUVGAPC
SCCVPTOC
LCCRPTRC
LCNSPTOV
LCZSPTOV
LCNSPTOC
LCZSPTOC
LCP3PTOC
LCP3PTUC
Hitachi Energy
ANSI
Function description
85
Scheme communication
logic for distance or
overcurrent protection
85
Phase segregated scheme
communication logic for
distance protection
85
Current reversal and weak-
end infeed logic for distance
protection
85
Current reversal and weak-
end infeed logic for phase
segregated communication
Local acceleration logic
85
Scheme communication
logic for residual overcurrent
protection
85
Current reversal and weak-
end infeed logic for residual
overcurrent protection
Direct transfer trip (see
8)
Function description
Low active power and power factor protection
Compensated over- and undervoltage protection
Sudden change in current variation
Carrier receive logic
Negative sequence overvoltage protection
Zero sequence overvoltage protection
Negative sequence overcurrent protection
Zero sequence overcurrent protection
Three phase overcurrent
Three phase undercurrent
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REL670
(Customized)
0-2
0-2
0-2
0-2
0-2
0-1
0-1
Table
0-1
1MRK 506 372-BEN Q
Line Distance
1
1
1-B05
1-B05
1
1
1-B05
1-B05
1
1
1
1
Total number of
instances
1
1
1
1
1
1
1
1
1
1
1
1
1-B05
1
1
1-B05
1
1
1
1
1
1
31
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