ABB RELION 620 Series Technical Manual page 31

620 series
Technical Manual
Current transformer supervision for high-impedance protection
scheme HZCCxSPVC.................................................................... 891
Identification.............................................................................. 891
Function block........................................................................... 892
Functionality.............................................................................. 892
Operation principle.................................................................... 892
Measuring modes...................................................................... 893
Application................................................................................. 894
Signals.......................................................................................895
Settings......................................................................................896
Monitored data...........................................................................897
Technical data........................................................................... 898
Technical revision history.......................................................... 898
Fuse failure supervision SEQSPVC............................................... 898
Identification.............................................................................. 898
Function block........................................................................... 898
Functionality.............................................................................. 899
Operation principle.................................................................... 899
Application................................................................................. 902
Signals.......................................................................................903
Settings......................................................................................904
Monitored data...........................................................................905
Technical data........................................................................... 905
Runtime counter for machines and devices MDSOPT................... 905
Identification.............................................................................. 905
Function block........................................................................... 905
Functionality.............................................................................. 906
Operation principle.................................................................... 906
Application................................................................................. 907
Signals.......................................................................................907
Settings......................................................................................908
Monitored data...........................................................................908
Technical data........................................................................... 908
Technical revision history.......................................................... 909
Section 7 Condition monitoring functions..................................... 911
Circuit-breaker condition monitoring SSCBR................................. 911
Identification.............................................................................. 911
Function block........................................................................... 911
Functionality.............................................................................. 911
Operation principle.................................................................... 912
Circuit breaker status........................................................... 913
Circuit breaker operation monitoring.................................... 913
Breaker contact travel time...................................................914
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