ABB 615 series Technical Manual page 25

615 series ANSI
Technical Manual
Application.................................................................................. 682
Signals........................................................................................683
Settings.......................................................................................684
Monitored data............................................................................684
Technical data............................................................................ 685
Technical revision history........................................................... 685
Impedance protection........................................................................... 685
Out-of-step protection 78.................................................................685
Identification............................................................................... 685
Function block............................................................................ 686
Functionality............................................................................... 686
Operation principle..................................................................... 686
Application.................................................................................. 692
Signals........................................................................................693
Settings.......................................................................................694
Monitored data............................................................................695
Technical data............................................................................ 695
Three-phase underexcitation protection 40..................................... 696
Identification............................................................................... 696
Function block............................................................................ 696
Functionality............................................................................... 696
Operation principle..................................................................... 696
Application.................................................................................. 700
Signals........................................................................................703
Settings.......................................................................................704
Monitored data............................................................................705
Technical data............................................................................ 706
Three-phase underimpedance protection 21G................................706
Identification............................................................................... 706
Function block............................................................................ 706
Functionality............................................................................... 707
Operation principle..................................................................... 707
Application.................................................................................. 710
Signals........................................................................................715
Settings.......................................................................................715
Monitored data............................................................................716
Technical data............................................................................ 717
Power protection...................................................................................717
Underpower protection 32U.............................................................717
Identification............................................................................... 717
Table of contents
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