This device is adopted two CPU control and 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-3110 is multifunction relay that have all functions,
protection, control and monitoring and remote signalling.communicationintroduces in RS-485 and CAN 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.KR-110 is mainly suitable for line-transformer groups of 380V,6KVand 10KVvoltage, protection for inner failure in synchronous and asynchronous
motor, overload protection.
MAIN FUCTIONS1:electromotor starting protection2:blockage protection3:3-stage overcurrent protection 4:2-stage zero sequence overcurrent protection (optional)5:2-stage negative sequence overcurrent protection 6: overvoltage protection (optional)7:low voltage protection (optional)8:zero sepuence voltage protection (optional)9:low cycle protection (optional)10:PT secondary circuit automatic detection (optional)11: Ua,Ub,Uc,Uo,Uac,Ucb,P,Q,COSΦanalog quantity telemetry12:: remote signalling,remote control function 13: provide non electrical quantity 1 trip input and non electrical quantity 2 alarm output14:provide central signal contactor:protection action , protection alarm,control circuit broken , non electrical quantity 1 and non electrical quantity 2 15: include "switch -in platen"and "trip platen"16: keep the record when power-fail and signal memory17:AC and DC voltage operation independently to trip proof 18:long-distance revise parameter and timing on the back stage
relay protection