ABB REL650 - Page 19

Blocking scheme.................................................................. 452
Permissive under/overreaching scheme.............................. 453
Unblocking scheme.............................................................. 454
Technical data........................................................................... 455
Current reversal and weak-end infeed logic for residual
overcurrent protection ECRWPSCH...............................................455
Identification.............................................................................. 455
Functionality.............................................................................. 456
Function block........................................................................... 456
Signals.......................................................................................457
Settings......................................................................................457
Operation principle.................................................................... 458
Directional comparison logic function...................................458
Fault current reversal logic................................................... 458
Weak-end infeed logic..........................................................459
Technical data........................................................................... 461
Section 13 Logic.............................................................................463
Tripping logic SMPPTRC ...............................................................463
Identification.............................................................................. 463
Functionality.............................................................................. 463
Function block........................................................................... 464
Signals.......................................................................................464
Settings......................................................................................465
Operation principle.................................................................... 466
Logic diagram.......................................................................470
Technical data........................................................................... 472
General start matrix block SMAGAPC............................................473
Identification.............................................................................. 473
Functionality.............................................................................. 473
Function block........................................................................... 473
Signals.......................................................................................473
Settings......................................................................................474
Operation principle.................................................................... 474
Trip matrix logic TMAGAPC........................................................... 480
Identification.............................................................................. 480
Functionality.............................................................................. 480
Function block........................................................................... 481
Signals.......................................................................................481
Settings......................................................................................483
Operation principle.................................................................... 483
Technical data........................................................................... 484
Logic for group alarm ALMCALH....................................................484
Identification.............................................................................. 484
Table of contents
Line distance protection REL650 2.2 IEC 13
Technical manual