Earth Leakage Relay With Cbct

Earth leakage relay with inbuilt cbct 30ma fixed elctr35 1 30ma 230v.

Earth leakage relay with cbct.

Static earth leakage relay elr transmits a signal to activate the trip coil of the mccb acb ocb contactor in the event of earth leakage resulting in automatic isolation of. Earth leakage relay elr can detect if the cbct zct connection status ie detecting the cbct zct open to ensure the healthiness of the relay. Of the elr and cbct are matched. Check the sensitivity of earth leakage relay and also the inner diameter of core balance current transformer.

The core balance current transformer or cbct is normally of the ring type through the centre of which is passed cable that forms the primary winding. An earth fault relay connected to the secondary winding is energised only when there is residual current in the primary system. Earth leakage relay with inbuilt cbct 300ma fixed elctr35 1 300ma 230v. Prok dv s make static earth leakage relay elr with core balance current transformer cbct zct are used to detect the leakage current in an electrical power system.