Feeder Protection Relay
ADR241B is second generation of Numerical Over current IDMT/DMT Relay. It consist all the necessary protection and monitoring functions required for Normal feeder. The High speed Digital Signal Controller
continuously monitors line phase current and E/F current. Along with different status input, through CTs, and optical isolated status connections. The high-speed micro-controller samples these current signals through a A/D converter.
A21F relay provides integrated Protection, Control and Monitoring functions for Over head Transmission Lines, Underground Cables, and Distributed Feeders.