4xI and 4xV inputs
Detached display for flexible installation
1-/3-pole tripping capability
Protection Functions:
Distance protection (21/21N)
High resistance earth-fault protection (50N, 51N, 67N)
Earth-fault detection in isolated and resonant-earthed networks
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)
Control & Monitoring:
Commands for circuit breaker (CB) and isolator control
Trip circuit supervision (74TC)
Self-supervision and measured-value monitoring
Event and fault logging
Communication & Software:
IEC 61850, IEC 60870-5-103, PROFIBUS, MODBUS
DIGSI 4 configuration software
Reliable Siemens SIPROTEC 4 platform with proven performance in global installations
Overall Differential Protection (87/50G)
Restricted Earth Fault Protection (87REF)
Earth Fault (50G)
CT Supervision (CT50)
Fault Clearance Monitor (87/50BF)
Instrumentation and Monitoring
IEC 61850 Communication Option
Eight Setting Groups
Password Protection
Self-Monitoring
Fault, Event & Waveform Records
