ABB 615 series Technical Manual page 21

615 series ANSI
Technical Manual
Motor differential protection 87G..................................................... 568
Identification............................................................................... 568
Function block............................................................................ 568
Functionality............................................................................... 568
Operation principle..................................................................... 569
Application.................................................................................. 575
Signals........................................................................................584
Settings.......................................................................................584
Monitored data............................................................................585
Technical data............................................................................ 587
Unbalance protection............................................................................587
Negative-sequence overcurrent protection 46.................................587
Identification............................................................................... 587
Function block............................................................................ 587
Functionality............................................................................... 588
Operation principle..................................................................... 588
Application.................................................................................. 590
Signals........................................................................................591
Settings.......................................................................................591
Monitored data............................................................................592
Technical data............................................................................ 593
Technical revision history........................................................... 593
Phase discontinuity protection 46PD...............................................593
Identification............................................................................... 593
Function block............................................................................ 594
Functionality............................................................................... 594
Operation principle..................................................................... 594
Application.................................................................................. 596
Signals........................................................................................597
Settings.......................................................................................598
Monitored data............................................................................598
Technical data............................................................................ 598
Technical revision history........................................................... 599
Phase reversal protection 46R........................................................ 599
Identification............................................................................... 599
Function block............................................................................ 599
Functionality............................................................................... 599
Operation principle..................................................................... 600
Application.................................................................................. 600
Signals........................................................................................601
Table of contents
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