Generally the no-load losses of an electrical machine is represented in its equivalent circuit by a

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SSC JE EE Previous Year Paper 17 (Held On: 4 March 2017 Evening)
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  1. Parallel resistance with a low value
  2. Series resistance with a low value
  3. Parallel resistance with a high value
  4. Series resistance with a high value

Answer (Detailed Solution Below)

Option 3 : Parallel resistance with a high value
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No load losses of the electrical machine:

When the load is not connected to the electric machine, the machine draws a low value of current to keep the machine active or running

  • The current which is taken by the machine is called no-load current
  • Current is drawn by the core of the machine 
  • The equivalent circuit is represented by a high value of resistance in parallel.
  • The power factor of the machine will be very low.
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