Operation principle..................................................................... 410
Timer characteristics.................................................................. 417
Measurement modes..................................................................418
Application.................................................................................. 418
Signals........................................................................................421
Settings.......................................................................................421
Monitored data............................................................................423
Technical data............................................................................ 423
Technical revision history........................................................... 424
Third harmonic-based stator ground-fault protection 27/59THN..... 424
Identification............................................................................... 424
Function block............................................................................ 424
Functionality............................................................................... 424
Operation principle..................................................................... 425
Application.................................................................................. 428
Signals........................................................................................435
Settings.......................................................................................435
Monitored data............................................................................436
Technical data............................................................................ 437
Multifrequency admittance-based ground-fault protection 67YN.....437
Identification............................................................................... 437
Function block............................................................................ 438
Functionality............................................................................... 438
Operation principle..................................................................... 439
Application.................................................................................. 457
Signals........................................................................................458
Settings.......................................................................................458
Monitored data............................................................................459
Technical data............................................................................ 460
Differential protection............................................................................460
Line differential protection with in-zone power transformer 87L...... 460
Identification............................................................................... 460
Function block............................................................................ 460
Functionality............................................................................... 461
Operation principle..................................................................... 461
Commissioning........................................................................... 483
Application.................................................................................. 489
Signals........................................................................................495
Settings.......................................................................................496
Monitored Data........................................................................... 498
Table of contents
615 series ANSI 13
Technical Manual