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Test: Long Transmission Line


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5 Questions MCQ Test Power Systems | Test: Long Transmission Line

Test: Long Transmission Line for Electrical Engineering (EE) 2023 is part of Power Systems preparation. The Test: Long Transmission Line questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Long Transmission Line MCQs are made for Electrical Engineering (EE) 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Long Transmission Line below.
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Test: Long Transmission Line - Question 1

Length of long transmission line is more than ___________

Detailed Solution for Test: Long Transmission Line - Question 1

Transmission lines having length more than 200 kilometres are categorised as long transmission lines. Transmission lines having length less than 200 kilometres are medium transmission lines.

Test: Long Transmission Line - Question 2

Range of surge impedance for an overhead transmission line is ____________

Detailed Solution for Test: Long Transmission Line - Question 2

Surge impedance is the characteristic impedance of a loss free transmission line. It is the square root of ratio of line impedance(Z) and shunt admittance (Y). Its value varies between 400 Ω and 600 Ω.

Test: Long Transmission Line - Question 3

Synchronous phase modifiers are installed at which of the following position of the transmission line?

Detailed Solution for Test: Long Transmission Line - Question 3

For constant voltage transmission, specially designed synchronous motors, called synchronous phase modifiers. Synchronous phase modifiers are installed at receiving end to maintain the voltage drop along the line constant.

Test: Long Transmission Line - Question 4

The leakage current through the shunt admittance is __________

Detailed Solution for Test: Long Transmission Line - Question 4

The leakage current through the shunt admittance is maximum at the sending end of the transmission line. This current decreases continuously as it move towards the receiving end of the line and becomes zero at the receiving end.

Test: Long Transmission Line - Question 5

In long transmission lines Resistance and Capacitance parameters of lines are connected in __________

Detailed Solution for Test: Long Transmission Line - Question 5

The resistance and inductance parameters are series elements of long transmission line. Capacitive susceptance and conductance parameters are shunt elements of transmission lines.

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