In the family of protection relay, CSDPR-V2-400 is numeric multi-powered Over-current relay specially designed for ring main units & feeder protection. It combines the following functions in one unit:
- Relay get energize either from Current, Aux. voltage, front USB or the internal battery (whichever is available)
- O/C, S/C, E/F and E/F High set protection
- DEFT and Inverse characteristics for O/C and FJF, individually selected for phase and earth fault
- Unbalance / Asymmetric protection
- Potential pulse output for direct triggering the circuit breaker coil. Potential free alarm contacts also available
- Remote trip & Remote protection block input DI
- RS485 Modbus
- USB port for PC/ Laptop interface.
DESIGN :
- Aux. supply
- CT current
- Internal battery
- USB port