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GETCO EE Practice Quiz-40

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Question 1

Dynamic stability of a power system disturbance lasting time period is?

Question 2

Which of the following elements together form the series impedance of the transmission line?

Question 3

By which of the following the transient stability of power system can be effectively improved?

Question 4

What will happen to the stability of the system if torque angle of an alternator increases infinitely?

Question 5

Two alternators have stored kinetic energy of 1000MJ and 1500MJ & are working in parallel. Find the inertia constant on 100MVA base.

Question 6

What does steady state operating condition of a power system specifies?

Question 7

For 800 MJ stored energy in the rotor at synchronous speed, what is the inertia constant H for a 50 Hz, four pole turbo-generator rated 100 MVA, 11 kV?

Question 8

The method adopted for improving the steady-state stability of power system are
1) Quick response excitation system
2) Higher excitation voltages
3) Maximum power transfer by use of series capacitor or reactor

Question 9

Consider a power system with three identical generators. The transmission losses are negligible. One generator (G1) has a speed governor which maintains its speed constant at the rated value, while the other generators (G2 and G3) have governors with a drop of 5%. If the load of the system is increased, then in steady state.

Question 10

The swing equation for a synchronous machine is based on

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AE & JE Exams

Aug 9AE & JE Exams