Engine 2014: Electricity

1. A The ground fault relay contacts are normally open and close only when the motor individual line currents are unbalanced due to the ground fault.
2. B The ground fault relay contacts are normally closed and open only when the motor individual line currents are unbalanced due to the ground fault.
3. C The ground fault relay contacts are normally open and close only when the overall motor line current is high due to the ground fault.
4. D The ground fault relay contacts are normally closed and open only when the overall motor line current is high due to the ground fault.

Tip: press A-D to answer