ABB 615 series Technical Manual page 29

615 series ANSI
Technical Manual
Application....................................................................................... 802
Signals.............................................................................................802
Settings............................................................................................802
Monitored data.................................................................................803
Technical data................................................................................. 803
Technical revision history................................................................ 803
Fault locator 21FL.................................................................................803
Identification.................................................................................... 803
Function block................................................................................. 804
Functionality.................................................................................... 804
Operation principle.......................................................................... 804
Phase selection logic..................................................................805
Fault impedance and distance calculation..................................806
Trigger detection.........................................................................822
Alarm indication.......................................................................... 823
Recorded data............................................................................ 824
Measurement modes..................................................................825
Application....................................................................................... 825
Signals.............................................................................................826
Settings............................................................................................827
Monitored data.................................................................................828
Technical data................................................................................. 831
Technical revision history................................................................ 831
Switch onto fault SOTF.........................................................................831
Identification.................................................................................... 831
Function block................................................................................. 831
Functionality.................................................................................... 832
Operation principle.......................................................................... 832
Application....................................................................................... 833
Signals.............................................................................................833
Settings............................................................................................833
Monitored data.................................................................................834
Technical data................................................................................. 834
Section 6 Supervision functions........................................................ 835
Trip circuit supervision TCM................................................................. 835
Identification.................................................................................... 835
Function block................................................................................. 835
Functionality ................................................................................... 835
Operation principle.......................................................................... 835
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