what is ELCB ,explain its working

Question

Accepted Answer

ELCB stands for Earth Leakage Circuit Breaker. It is a safety device that automatically switches off the electrical circuit when it detects current leakage.

ELCB is also known as RCCB (Residual Current Circuit Breaker).
It works by comparing the incoming and outgoing current in a circuit.
If there is a difference in current, it means that some current is leaking to the earth, and the ELCB trips the circuit.
ELCB is used to protect against electric shock and fire hazards.
It is commonly used in homes, offices, and industries.
ELCB can be of two types - voltage-operated and current-operated.
Voltage-operated ELCB is used for low voltage circuits, while current-operated ELCB is used for high voltage circuits.

what is ELCB ,explain its working

Popular interview questions of Engineer