Numerical Single Pole Tx Differential Relay

Features of Numerical Single Pole Tx. Differential Relay :-
* Specially designed for Traction Transformer Protection. As per RDSO specs TI/SP/PSI/PROTCT/4050
* Dual Slop characteristic for excellent through fault stability.
* Operation based on fundamental frequency value.
* Harmonics Restrain for Tx charging and CT saturation condition.
* Instantaneous Differential Current Protection.
Disturbance Recorder. 50 cycles of actual waveform of currents (45 pre-fault & 5 post fault) are captured & saved in the built-in memory with date time stamping, for analyzing fault.
* 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.
* Large 20x4 LCD display for Parameter and setting display.
* Facility to synchronised Relay time with external GPS network.