Adr 2218 Numerical Over Current Protection Relay

Features of ADR 2218 Numerical Over Current Protection Relay :-
* Specially designed for Traction OHE protection. As per RDSO specs TI/SP/PSI/PROTCT/4050.
* 2 Element (1 OC + 1 CUR) over current IDMT with Current Unbalance Relay.
* Two stage Protection (IDMT for Fault and Definite Time for overload).
* Breaker Failure detection.
* In-built CB trip circuit monitoring during close as well as open condition.
* Disturbance Recorder. 50 cycles of actual waveform of voltage & current (45 pre-fault & 5 post fault) are captured & saved in the builtin memory with date time stamping, for analyzing fault condition.
* Separate Communication Ports for SCADA (RS485) as well as Local testing (RS232C)
* Fully communicable with IEC standard open protocol.
* Very low burden on CT (less than 0.5VA).
* Online display of Primary current i.e. load current and unbalance current.
* Continuous monitoring of modulea s internal hardware and alarm generation in case of failure of any critical components.
* Facility to synchronised Relay time with external GPS network.