1/Power loss due to corona is: a. Inversely proportional to frequency. b. Proportional to frequency. c. Frequency does not effect. с. d. All these answers are wrong. 2/ We prefer High voltage DC (HVDC) transmission system than High Voltage AC transmission system according to the cost, when: a. The distance of the line is more than B00 km. b. The distance of the line is less than 300 km. c. The distance of the line is equal to 300 km. d. All the above answers are wrong. 3/ HVDC Transmission has lower corona losses than HVAC Transmission because: a. HVDC Transmission tower is less height than HVAC Transmission tower. b. HVDC Transmission system work with zero frequency than HVAC Transmission system of 50 Hz. c. HVDC Transmission currents is uniform distributed in the all cross section of the system conductors than HVAC Transmission due to skin effect. с. d. All of the above answers are wright.

1/Power loss due to corona is: a. Inversely proportional to frequency. b. Proportional to frequency. c. Frequency does not effect. с. d. All these answers are wrong. 2/ We prefer High voltage DC (HVDC) transmission system than High Voltage AC transmission system according to the cost, when: a. The distance of the line is more than B00 km. b. The distance of the line is less than 300 km. c. The distance of the line is equal to 300 km. d. All the above answers are wrong. 3/ HVDC Transmission has lower corona losses than HVAC Transmission because: a. HVDC Transmission tower is less height than HVAC Transmission tower. b. HVDC Transmission system work with zero frequency than HVAC Transmission system of 50 Hz. c. HVDC Transmission currents is uniform distributed in the all cross section of the system conductors than HVAC Transmission due to skin effect. с. d. All of the above answers are wright.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter8: Symmetrical Components

Section: Chapter Questions

Problem 8.10P

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