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Technical Specifications

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

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