SSC JE EE: Power System Booster Quiz-6

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

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

A 100 MW power station delivers 100 MW for 2 hours, 50 MW for 6 hours in a day and is shut down for maintenance for 45 days each year. Calculate its annual load factor?

For loading greater than surge impedance loading, transmission line acts as a_______.

Which one of the following is not a basic functional characteristic of a protective relay?

Which of the following circuit breaker requires least maintenance?

Symmetrical component of phase a is  then what will be the neutral current?

The Reset to pickup ratio of EM attraction type principle relays is_____.

In an ACSR conductor the total number of conductors are 37, then the number of layers in the conductor is