engineering recuitment NCL Assistant Foreman (Trainee) Mock Test 2024 Electrician and Wireman Power Systems Relays and Voltage Regulators
Testing of earth leakage by the ELCB and relay, the terminal of relay is connected between:
1
Metal body of the equipment and neutral wire
2
Metal body of the equipment and earth
3
Phase wire of the equipment and earth
4
Phase wire of the equipment and neutral wire