What is Electronic Relay? . :The electronic relay is a type of electronic switch that opens or close the circuit contacts by using electronic component without any mechanical operation. In this relay, the current carrier pilot relaying scheme is used for the protection of the transmission line. In such type of relay, the electronic valves are used as a measuring unit. The two basic arrangements of electronic relays are shown below. One uses an amplitude comparator, and the other makes use of a phase comparator. circuitglobe.com
Safety Relays Selection Guide . www.globalspec.com
