Earth Leakage Relay With Cbct

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 cbct.

Of the elr and cbct are matched. 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. Earth leakage relay with inbuilt cbct 30ma fixed elctr35 1 30ma 230v. The earth leakage relay elr has back lit lcd display 2 line 8 character for displaying the nature and magnitude of fault.

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. 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. 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. Installation procedure for earth leakage relay cbct.