ABB RELION 620 Series Technical Manual page 21

620 series ANSI
Technical Manual
Operation principle..................................................................... 514
Application.................................................................................. 517
Base values................................................................................ 520
Signals........................................................................................520
Settings.......................................................................................521
Monitored data............................................................................522
Technical data............................................................................ 522
Section 5 Protection-related functions...............................................525
Three-phase inrush detector INR......................................................... 525
Identification.................................................................................... 525
Function block................................................................................. 525
Functionality.................................................................................... 525
Operation principle.......................................................................... 526
Application....................................................................................... 527
Signals.............................................................................................528
Settings............................................................................................529
Monitored data.................................................................................529
Technical data................................................................................. 529
Circuit breaker failure protection 50BF................................................. 530
Identification.................................................................................... 530
Function block................................................................................. 530
Functionality.................................................................................... 530
Operation principle.......................................................................... 530
Application....................................................................................... 537
Signals.............................................................................................539
Settings............................................................................................539
Monitored data.................................................................................540
Technical data................................................................................. 540
Master trip 86/94...................................................................................540
Identification.................................................................................... 540
Function block................................................................................. 541
Functionality.................................................................................... 541
Operation principle.......................................................................... 541
Application....................................................................................... 542
Signals.............................................................................................543
Settings............................................................................................544
Monitored data.................................................................................544
High-impedance fault detection HIZ..................................................... 544
Identification.................................................................................... 544
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