Type 1 surge protection unit DC-PRO

DC

PROTECTION, CONTROL AND COMMUNICATION RELAY FOR DC SUBSTATION DC-PRO is the most complete protection unit able to monitor, protect and control DC substations. It can be used in railway and underground systems together with ultra rapid circuit breaker and measurement transducers. 4 independent group of settings Thermal image protection 4 overcurrent protections 2 current jump protections (function of di/dt) 2 di/dt protections 1 minimum impedance protection (function of di/dt) 1 overcurrent protection (function of di/dt) 2 ground fault voltage and current protections 4 automatic reclosures 2 undervoltage protections Programmable automatic line test (single or double voltage) Impulse energy counters Circuit breaker lock 4 remote tripping functions Touch panel 7” for DC-PRO settings, measurement and waveform view Multi languages 10 programmable LEDs for signalling 16 programmable signalling relays 44 programmable sigital inputs