Q.For the same conductor length, same amount of power, same losses and same maximum voltage to earth, which system required minimum conductor area?

  • ASingle-phase ac
  • B3-phase ac
  • C2-wire ac
  • D3-wire dc 
Correct Answer : (D)

3-wire dc 

Hints :

For the same conductor length, same amount of power, same losses and same maximum voltage to earth, The system required minimum conductor area is 3-wire dc.

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