Which Type of conductor is used for the Primary Power Transmission | Power Transmission and Distribution MCQ#1
Which type of conductor is used for the primary transmission of electric power:
- 3 phase-3 wire
- 3 phase-4 wire
- 2 phase-3 wire
- 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.