ABB 615 series Technical Manual page 37

615 series ANSI
Technical Manual
Variation detection....................................................................1043
Variation validation................................................................... 1044
Duration measurement............................................................. 1048
Three/single-phase selection variation examples.....................1049
Recorded data............................................................................... 1051
Application..................................................................................... 1054
Signals...........................................................................................1056
Settings..........................................................................................1056
Monitored data...............................................................................1058
Technical data............................................................................... 1061
Technical revision history.............................................................. 1061
Voltage unbalance PQVUB................................................................ 1061
Identification.................................................................................. 1061
Function block............................................................................... 1062
Functionality.................................................................................. 1062
Operation principle........................................................................ 1062
Application..................................................................................... 1068
Signals...........................................................................................1069
Settings..........................................................................................1070
Monitored data...............................................................................1071
Technical data............................................................................... 1072
Section 11 General function block features.......................................1073
Definite time characteristics................................................................1073
Definite time operation...................................................................1073
Current based inverse definite minimum time characteristics............ 1077
IDMT curves for overcurrent protection......................................... 1077
Standard inverse-time characteristics...................................... 1082
User-programmable inverse-time characteristics..................... 1097
RI and RD-type inverse-time characteristics............................ 1097
Reset in inverse-time modes......................................................... 1101
Inverse-timer freezing....................................................................1110
Voltage based inverse definite minimum time characteristics............ 1111
IDMT curves for overvoltage protection.........................................1111
Standard inverse-time characteristics for overvoltage protection1114
User programmable inverse-time characteristics for
overvoltage protection.............................................................. 1118
IDMT curve saturation of overvoltage protection......................1118
IDMT curves for undervoltage protection...................................... 1119
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