Development Of Earth Leakage Circuit Breaker Auto Re-Close With Metering

Mohd Aminuddin , Ibrahim (2012) Development Of Earth Leakage Circuit Breaker Auto Re-Close With Metering. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Circuit breaker is a device to protect electrical circuit from damage and to detect a fault condition and immediately disconnect electric flow. There are many type of circuit breaker which Earth Leakage Circuit Breaker (ELCB) is one of them. The ELCB will protect human or home appliances from being damage by the earth's leakage current. The earth's leakage current can occur by conditions, the trip cause by lightning or trip cause by the appliances. ELCB operate by calculate the unbalanced current between the Life, Neutral and Earth terminal in the system. For the temporary fault cause by the lightning, the Auto Re-closer ELCB will trip once, then it will go to the origin condition and after second times of trip, the Auto Re-closer ELCB will not be closed again because it is assumed that the permanent fault has occur. This project will use Microcontroller program has to control the operation of the Auto Re-closer ELCB.

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