ABB 615 Series - 2.2 Documentation

Technical data............................................................................ 297
Thermal overload protection for motors 49M...................................297
Identification............................................................................... 297
Function block............................................................................ 298
Functionality............................................................................... 298
Operation principle..................................................................... 298
Application.................................................................................. 307
Signals........................................................................................311
Settings.......................................................................................312
Monitored data............................................................................313
Technical data............................................................................ 313
Technical revision history........................................................... 314
Ground-fault protection......................................................................... 314
Non-directional ground-fault protection 51N, 51G, 50N, 50G,
50N-3, 50G-3...................................................................................314
Identification............................................................................... 314
Function block............................................................................ 314
Functionality............................................................................... 314
Operation principle..................................................................... 315
Measurement modes..................................................................317
Timer characteristics.................................................................. 317
Application.................................................................................. 319
Signals........................................................................................319
Settings.......................................................................................321
Monitored data............................................................................324
Technical data............................................................................ 325
Technical revision history........................................................... 325
Directional ground-fault protection 67/51N, 67/50N........................ 326
Identification............................................................................... 326
Function block............................................................................ 326
Functionality............................................................................... 326
Operation principle..................................................................... 326
Directional ground-fault principles.............................................. 332
Measurement modes..................................................................338
Timer characteristics.................................................................. 339
Directional ground-fault characteristics...................................... 340
Application.................................................................................. 350
Signals........................................................................................352
Settings.......................................................................................353
Monitored data............................................................................357
Table of contents
615 series ANSI 11
Technical Manual