Which Type of conductor is used for the Primary Power Transmission | Power Transmission and Distribution MCQ#1

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Which type of conductor is used for the primary transmission of electric power:

  1. 3 phase-3 wire
  2. 3 phase-4 wire
  3. 2 phase-3 wire
  4. 2 phase-4 wire

Correct answer: 1. 3 phase-3 wire

Explanation: The transmission of electric power from the unit transformer (main transformer at Power plant) is termed as primary transmission. Universally the primary transmission of electric power is done using a 3 phase 3 wire system.

Good to know: A unit transformer is used at power plants to step up the generated power.

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