Earth Leakage Relay

Earth leakage relay without built in toroidal transformer elr b elr 3c. 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. Suitable for direct pulse current and immune to external disturbances.

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The earth leakage current are very low and are sensitive leakage current can be detected by earth leakage relay and core balance current transformer.

Earth leakage relay.

Electronic relays with adjustable delay time. Means it detects the earth leakage current and. An earth leakage circuit breaker elcb is a safety device used in electrical installations with high earth impedance to prevent shock. Detection of no connection to zct zero phase current transformer.

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. Manual test button for relay operation checking. Earth leakage relays are normally used in low voltage circuits only.

Earth leakage relays are used to sense small magnitude of currents. It detects small stray voltages on the metal enclosures of electrical equipment and interrupts the circuit if a dangerous voltage is detected. Qty add to cart. To be used with elr b elr 3c d30.

Earth leakage circuit breaker or elcb. Earth leakage protection measurement for low voltage. 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. Real time monitoring of leakage current.

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