relay protection

This device is adopted high-powered 32 bits DSP, Chinesization liquid -crystal display, detailed and visual information, co

This device is adopted high-powered 32 bits DSP, Chinesization liquid

-crystal display, detailed and visual information, convenience for

operation. The protection device can work safely for long time under

-25C-+55C. KR-2210 is multifunction relay that have all functions,

protection, control and monitoring and remote signalling.communicationintroduces in RS-485 bus network that is economic and

convenient.Various services for breaker operation circuit , operation

compatible between DC and AC voltage, is suitable for all kinds of

breaker control. This device is adopted high-standarded

case,flashboard on the back, no back board binding wire that

guarantees quality plenty on the technique.

This device is mainly suitable for feeder protection of all kinkds of power supply system of 35KV and lower voltage

MAIN FUCTIONS

1: 3-stage overcurrent protection 2:2-stage zero sequence overcurrent protection (optional)3:2-stage negative sequence overcurrent protection 4: overvoltage protection (optional)5:low voltage protection (optional)6:zero sepuence voltage protection (optional)7:low cycle protection (optional)8:PT  secondary circuit automatic detection (optional)9: remote signalling,remote control function 10:transmission test fuction11:providing two central signal contactor:protection action and protection alarm12: keep the record when power-fail and signal memory

13:AC and DC voltage operation independently to trip proof

relay protection