Protection Functions:
Distance protection with 6 measuring systems (21/21N)
High resistance earth-fault protection (50N, 51N, 67N)
Earth-fault detection in isolated and resonant-earthed systems
Tele (pilot) protection (85)
Fault locator (FL)
Power swing detection/tripping (68/68T)
Phase-overcurrent protection (50/51)
Switch-onto-fault protection (50HS)
STUB bus overcurrent protection (50STUB)
Overvoltage/undervoltage protection (59/27)
Over/underfrequency protection (81O/U)
Auto-reclosure (79)
Synchro-check (25)
Breaker failure protection (50BF)
Thermal overload protection (49)
Control Functions:
Commands for circuit breaker and isolator control
Monitoring Functions:
Trip circuit supervision (74TC)
Relay self-supervision
Measured-value supervision
Event logging and fault logging
Oscillographic fault recording
Switching statistics
Additional Features:
4xI, 4xV inputs
Text display
1-/3-pole tripping
Compatible with DIGSI 4 engineering software
