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Q.For preventing the malfunction of Merz-Price protection scheme on inrush of magnetizing current

  • AThe relay restraining coil is biased with second harmonic current.
  • BTime lag is provided in the relay.
  • CRelay sensitivity is reduced by employing a shunt. 
  • DAll of the above.
Correct Answer : (A)

The relay restraining coil is biased with second harmonic current.
Hints :

For preventing the malfunction of Merz-Price protection scheme on inrush of magnetizing current, the relay restraining coil is biased with second harmonic current.

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