Earth Leakage Relay Circuit Diagram

Current earth leakage current earth leakage circuit breaker current elcb.

Earth leakage relay circuit diagram. An elcb is a specific type of latching relay that has a structure s incoming mains power associated through its switching contacts so that the circuit breaker detaches the power in an unsafe condition the elcb notices fault currents of human or animal to the earth wire in the connection it guards. 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. If ample voltage seems across the elcb s sense coil it will turn off the power and remain.

For many years the voltage operated elcb and the differential current operated elcb were both referred to as elcbs because it was a simpler name to. It detects small stray voltages on the metal enclosures of electrical equipment and interrupts the circuit if a dangerous voltage is detected. 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.