Means it detects the earth leakage current and.
Earth leakage circuit breaker working.
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.
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.
An voltage elcbs were first introduced about sixty years ago and current elcb was first introduced about forty years ago.
Forty years ago the first current eclbs were introduced and about sixty years ago the first voltage eclb was introduced.
Earth leakage circuit breaker or elcb.
It detects small stray voltages on the metal enclosures of electrical equipment and interrupts the circuit if a dangerous voltage is detected.
Basically elcb is used where the earth impedance is high.
An earth leakage circuit breaker elcb is a safety device used in electrical installations with high earth impedance to prevent shock.
Because of high earth impedance the voltage difference between the metallic part of the installation and earth.
Generally the current sensing devices termed as rccb and voltage detecting devices named as earth leakage circuit breaker elcb.
Current earth leakage current earth leakage circuit breaker current elcb.