Elcb Trip During Lightning. When lightning strikes a line it induces a voltage spike. Time is another parameter that must not be ignored.
Why do circuit breakers trip when lightning strikes. Lightning often strikes power lines or the protective ground wires above transmission lines. Traditional circuit breakers are current sensing devices whether solid state or electromechanical.
At this moment the spike is connect to the earth means also the phase current connet to the earth.
If it is the. If you are looking to buy rcbos you will notice that the type of tripping curves is displayed this is because as mentioned earlier rcbos has a mcb built in it therefore we will be going through the 4 tripping curves that are available in our website electgo. When an installation has two connections to earth a nearby high current lightning strike will cause a voltage gradient in the soil presenting the elcb sense coil with enough voltage to cause it to trip. When lightning strikes a line it induces a voltage spike.
