Earth leakage relay without built in toroidal transformer elr b elr 3c.
Earth leakage relay.
It detects small stray voltages on the metal enclosures of electrical equipment and interrupts the circuit if a dangerous voltage is detected.
Earth leakage relays are normally used in low voltage circuits only.
To be used with elr b elr 3c d30.
Means it detects the earth leakage current and.
Detection of no connection to zct zero phase current transformer.
Qty add to cart.
Electronic relays with adjustable delay time.
Suitable for direct pulse current and immune to external disturbances.
Earth leakage circuit breaker or elcb.
An earth leakage circuit breaker elcb is a safety device used in electrical installations with high earth impedance to prevent shock.
Earth leakage protection measurement for low voltage.
Real time monitoring of leakage current.
If any current leaks from any electrical installation there must be any insulation failure in the electrical circuit it must be properly detected and prevented otherwise there may be a high chance of electrical shock if anyone touches the installation an earth leakage circuit breaker does it efficiently.
Toroidal transformers ct1 ctd1.
Elr detects the leakage current in the circuit and isolate the power supply by switching off the tripping device circuit breaker contactor etc.
These relays are designed in such a way that whenever they sense a preset value of current usually settable between 10ma and 3a it trips the circuit breaker and interrupts the flow of current.