◇can install 485/232 communication port,or remote control by fiber and wireless;accelerate trip 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 delayed 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 in/out of the district;
◇Prevent malfunction design for remote control on switch on/off
◇Liquid crystal display in Chinese. It is easy to operate and very simple
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 A&B phase. Controllor monitor the value of analog quantity and compare them with the fixed value to judge whether it’s network failure, then take responding treatment
Functions
◇Quick-trip protection ◇over current protection ◇Reclosing 3 times ◇log-out ◇anti-surge protection
◇zero sequence protection ◇real time clock ◇accelerate trip after reclosing ◇real time status inquiry ◇liquid crystal display
◇set the fixed value of local/remote control(GSM) ◇setting can be continunous ◇report fault to center system