Q.Undervoltage relays are mainly used for

  • AMotor protection
  • BTransformer protection 
  • CGenerators
  • DAll of these 
Correct Answer : (D)

All of these 

Hints :

Undervoltage relays are mainly used for Motor, Transformer  & Generator Protection.


The most serious consequence of a major uncleared short-circuit fault could be


Which of the following results in a symmetrical fault?

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