Which of the following systems is used in the secondary transmission of electric power?

Which of the following systems is used in the secondary transmission of electric power?

Right Answer is:

33-kV, three-phase, three-wire system

SOLUTION

Secondary transmission

  • The primary transmission line terminates at the receiving station which usually lies at the outskirts of the city.
  • At the receiving station, the voltage is reduced to 33kV by step-down transformers.
  • From this station, electric power is transmitted at 33kV by 3-phase, 3-wire overhead system to various sub-stations (SS) located at the strategic points in the city. This forms the secondary transmission.
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