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GATE EE 2021 : Power System Quiz 4 (App update required to attempt this test)
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Question 1
The system voltage is enhanced during heavy load condition and reduced during light load condition by using
Question 2
In order to improve the power factor of equipment operating at lagging power factor, a capacitor is connected
Question 3
A 3-ϕ, 400 kV transmission line has a surge impedance of Zs = 250 Ω. If the line is compensated with series capacitor of 25%. Then the new surge impedance loading in MW will be:
Question 4
An alternator is supplying a load of 300kW at a p.f. of 0.6 lagging. If the power factor is raised to unity, how many more kilowatts can alternator supply for the same kVA loading ?
Question 5
A shunt capacitor of 200 MVAR is operated with 97% of its rated voltage and at 95% of its rated frequency. The reactive power absorbed by compensating element will be:
Question 6
The power consumption of an industry is 400 KVA, 0.8 p.f. lagging. A synchronous motor is added to raise the p.f. to 0.9 lagging. If power intake of the motor is 100 KW, the p.f. of rotor is:
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May 30ESE & GATE EE
