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A relay whose characteristic is modified by additional mechanical or electromagnetic procession is termed as

A relay whose characteristic is modified by additional mechanical or electromagnetic procession is termed as Correct Answer Biased relay

Biased Relay:

  • A relay in which the characteristics are modified by the introduction of some additional mechanical or electromagnetic quantities, and which are usually in opposition to the actuating quantity.
  • In this relay, there are two types of coil: one is the operating coil and the other is the restraining coil.
  • The bias ratio is the ratio of the number of turns of the restraining coil to the operating coil.
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Additional Information

1.) IDMT Relay: 

  • IDMT relay is an inverse definite minimum time relay.
  • It is one in which the time of operation is inversely proportional to the magnitude of fault current near pickup value and becomes substantially constant slightly above the pickup value of the Relay.

2.) Static Relay:

  • A static relay is a type of relay or an electrically operated switch that has no moving parts.

3.) Electro-mechanical Relay:

  • An electromechanical relay is a type of relay which function using a magnetic field produced by an electromagnetic coil when a control signal is applied to it. 
  • It is called electromechanical since it has moving contacts in the output circuit which are operated by applying an electrical signal.

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