ABB RED615 Technical Manual page 12

Table of contents
6
Monitored data.....................................................................175
Technical data......................................................................176
Three-phase directional overcurrent protection
DPHxPDOC...............................................................................176
Identification.........................................................................176
Function block......................................................................177
Functionality.........................................................................177
Operation principle ..............................................................177
Measurement modes............................................................182
Directional overcurrent characteristics ................................183
Application............................................................................191
Signals..................................................................................193
Settings................................................................................195
Monitored data.....................................................................198
Technical data......................................................................199
Technical revision history.....................................................200
Three-phase directional overcurrent protection
DPH3xPDOC.............................................................................200
Identification.........................................................................200
Function block......................................................................201
Functionality.........................................................................201
Operation principle ..............................................................201
Timer characteristics............................................................208
Directional overcurrent characteristics ................................209
Application............................................................................217
Signals..................................................................................219
Settings................................................................................220
Monitored data.....................................................................223
Technical data......................................................................225
Three-phase thermal protection for feeders, cables and
distribution transformers T1PTTR.............................................225
Identification.........................................................................225
Function block......................................................................226
Functionality.........................................................................226
Operation principle...............................................................226
Application............................................................................229
Signals..................................................................................230
Settings................................................................................230
Monitored data.....................................................................231
Technical data......................................................................231
Technical revision history.....................................................232
Three-phase thermal overload protection for power
transformers, two time constants T2PTTR................................232
Identification.........................................................................232
615 series
Technical Manual