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GATE 2023 Power Systems Quiz 40
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Question 1
What happens to corona loss if frequency of the system is increased?
Question 2
Consider the following statement with respect to corona which of true?
1) As temperature increases corona loss will increases.
2) As highest of conductor increases corona loss increases
3) If radius of conductor decreases corona loss decreases.
4) Harmonics in the supply decreases the corona loss.
Question 3
The transmission line having a diameter of 4 cm and μr= 6 produces an internal inductance 0.12 μH/m. If it is replaced by an ASCR conductor which has a same diameter size but μr = 10, what will be the new internal inductance (μH/m)?
Question 4
Assuming Constant Transmission Efficiency, if voltage is increased 'n' times, the size of the conductor would be________?
Question 5
Consider the following statements regarding 3-phase AC line to DC line.
A) Power losses are reduced in comparison of AC.
B) Cost of transmission is increased due to line compensation.
C) The DC line can transmit twice the power of a three-phase double circuit system with modification of insulation and with same percentage loss.
Which of the following option is correct ?
A) Power losses are reduced in comparison of AC.
B) Cost of transmission is increased due to line compensation.
C) The DC line can transmit twice the power of a three-phase double circuit system with modification of insulation and with same percentage loss.
Which of the following option is correct ?
Question 6
In a ACSR conductor why is grease put between steel and aluminium conductors?
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Jun 10ESE & GATE EE
