If Trip indication and command is displayed on the meter after manually tripped. Then Check the changeover of NO & NC of iELR with COM. If that also works then there is a problem in connected Breaker not in iELR. And, If NO & NC changeover not done ...
Principle of Operation CBCTs work on Kirchoff's principle that the sum of currents at any point in a circuit is zero. Hence in case a leakage current exists in a circuit, it causes the sum of currents upstream of the leakage point to be non-zero. ...
Earth Leakage Relays Earth leakage relays play two very important roles in electrical systems ‒ protection of human beings from electrocution and safety from fire. Leakage current through very small in magnitude can wreak havoc in the installations. ...
Only the leakage current will be shown in register address 151. Another address 149 is a dummy. 1. Current R Phase 40151 = Leakage current of iELR 2.Current Average 40149 = Dummy