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UPPCL AE EE : Power Systems Quiz 1
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Question 1
A 400 kV, 3-ф, 50 Hz lossless transmission line has inductance and capacitance 1.6 mH/km/phase and 10 nF/km/phase respectively. The receiving end voltage is maintained at 400 kV, when it is delivering 300 MW load, the shunt compensation required is
Question 2
Span of OH line is 220m, weight of the conductor is 500 kg/km and tensile strength is 6600 kg. for a safety factor of 2, then the sag of the line will be_____?
Question 3
For an end condenser transmission line representation, transmission parameter A is
Question 4
A capacitor bank is supplying 30 MVAR at a voltage of 33 kV. If the voltage is raised by 10% and frequency drops by 15%. What is the reactive power supplied by the capacitor bank?
Question 5
Which of the following statement is/are correct for short transmission line?
1. Short line is always symmetrical and reciprocal
2. In short line, sending end power factor is always less than the receiving end power factor
3. Regulation cannot be positive for leading power factor
4. Regulation is always positive for lagging power factor
Question 6
Corona loss depends on
1. Radius of conductor
2. Spacing between conductors
3. Atmosphere
4. line voltage
Question 7
In fast breeder reactors, ________ is used as a coolant.
Question 8
Transmission and reflection co-efficient of voltage of given figure are
Question 9
Which one of the following power plants is the least reliable?
Question 10
Which of the following statement is/are true regarding Ferranti effect.
i. Sending end voltage is less than receiving end voltage.
ii. Sending end voltage is more than receiving end voltage.
iii. Loading is more than surge impedance loading
iv. Loading is equal to surge impedance loading.
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AE & JE ExamsMar 23AE & JE Exams