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. ...
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 ...
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
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. ...