ABB Protect IT REL 501 2.5 Series Operator's Manual page 62

View the function block variables and
output signals
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WattmetrEF1 WEF1
WattmetrEF2 WEF2
ComIRevWei EFCA
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SuddenChangeC SCC1
SuddenChangeRC SCRC
SuddenChangeV SCV
OverCurrentP OCP
UnderCurrentP UCP
ResidOverCP ROCP
OverVoltageP OVP
LowActivePP LAPP
LowActiveRP LARP
HighActivePP HAPP
HighActiveRP HARP
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AutoRecloser 1 AR01
AutoRecloser 2 AR02
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SynchroCheck1 SYN1
SynchroCheck2 SYN2
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Sensitive directional residual overcurrent protection
Sensitive directional residual power protection
Current reversal and weak end infeed logic
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Sudden change in phase current
Sudden change in residual current
Sudden change in voltage
Phase overcurrent protection
Phase undercurrent protection
Residual overcurrent protection
Over voltage protection
Low active power protection
Low active and reactive power protection
High active power protection
High active and reactive power protection
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AutoRecloser
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SynchroCheck
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