Distribution FTU CMC-3L

◇ With 485/232(optional) port. Remote control by fibre/wireless; accelerate after reclosing: If the switch closed in permenant failure, it will accelerate trip off ◇ Remote control theclosing, accelarate the trip, and block the reclosing:If the user forget to remove the ground switch when restart the power transmission after the repairy, it shall accelerate the trip ◇ The delay time of 3 times reclosing can be adjusted seperately ◇ The prevent malfunction design of tripping and closing circuit is used and it also has the function of prevent trip ◇Zero sequence current can distinguish the failure inside/outside of section ◇ Prevent malfunction design for remote control on switch on/off； ◇ 3 sections prevention, can choose one group inverse time curve among 4 to protect the line； ◇ The acceleration after 3 sections can be opened/closed individually Struture feature ◇ The controller is microdevice of relay protection and monitoring ； ◇ Weather resistance, dewing-proof； ◇ Connect with the switch by aviation connectors; High reliability and prevention class； It has 7 input simulation channel1，A phase current、B phase current、C phase current、zero sequence current、phase voltage between A&B、 phase voltage between B&C、phase voltage between A&C. The controller monitor those simulation data in real time manner, and compare with definid valve to decide the line failures and take corresponding treatment.