◇can install 485/232 communication port,or remote control by fiber and wireless;accelerate after reclosing; if the switch is on when there is perminant failures, it will accelerate trip off

◇remote control/manually operation reclosing, accelerate trip, and reclosing block:If the user forgot to remove the ground switch after repairy, it should accelerate trip off after power on

◇The delay time of reclosing 3 times can be adjusted;

◇Switch on/off circuit is designed by preventing software/hardware malfunction,and can prevent trip;

◇zero sequence curren can judge the failure inside/outside the district;◇Prevent malfunction design for remote control on switch on/of

 Struture features

a) Controller is microdevice of relay protection and monitor,

b)Weather resistance, dewing proof; small size and light in weight 

c)Connect with switch by aviation connectors and multicore cables.

d)With good connect reliability and protection class

The channel of input analog quantity is 4, A phase current, C phase current, zero sequence current, the voltage between B&C phase. Controllor monitor the value of analog quantity and compare them with the fixed value to judge whether it’s network failures, then take responding treatment.


◇Quick-trip protection◇over current protection ◇Reclosing 3 times ◇log-out  ◇anti-surge protection

◇zero sequence protection ◇real time clock  ◇accelerate after reclosing◇real time status inquiry

◇PDA control◇local/remote control set up definite value    ◇report fault to center system