ABB RET630 - Page 7

Table 2. Supported functions, continued
Functionality A B N
Underfrequency - - 3
Transformer differential protection for two-winding transformers 1 1 1
Circuit-breaker failure, HV side 1 1 2
Tripping logic, LV side 1 1
2
Tripping logic, HV side 1 1
Control
Bay control 1 1 1
Interlocking interface 4 4 10
Circuit breaker/disconnector control 4 4 10
Circuit breaker 1 1 2
Disconnector 3 3 8
Local/remote switch interface - - 1
Synchrocheck - - 1
Supervision and monitoring
Circuit-breaker condition monitoring, HV side 1 1 2
Fuse failure supervision 1 - 1
Current-circuit supervision, LV side - 1
2
Current-circuit supervision, HV side 1 1
Trip-circuit supervision 2 2 3
Tap position indication - - 1
Energy monitoring 1 1 1
Generic measured values - - 3
Measured value limit supervision - - 9
Station battery supervision - - 1
Measurement
Three-phase current, LV side 1 1
2
Three-phase current, HV side 1 1
Three-phase voltage, phase-to-phase 1 1 1
Three-phase voltage, phase-to-earth 1 1 1
Residual current measurement 2 2 2
Transformer Protection and Control 1MRS756788 A
RET630
Product version: 1.0 Issued: 15.09.2009
ABB 7