Power Systems

This page provides a comprehensive collection of multiple-choice questions (MCQs) on power systems, covering topics such as power system components, power system analysis, and power system protection. It is a great resource for students and professionals looking to test their knowledge and understanding of power systems.

Challenge yourself to get the highest score. Twenty (20) MCQ questions from our test bank will be randomly shown for every attempt. Passing mark for this test is 70%.

Welcome to your Power Systems

A conductor is composed of seven identical copper .Iranu, each having a radius r. The self GMD of the conductors will be

For high-voltage transmission lines, conductors are suspended from towers so as to

The main reason for using high voltage for long distance power transmission is

Distributers are designed from the point of view of

Series capacitor is used in a transmission line to

Which one of the following statement. is not correct for the use of bundled conductors in transmission lines?

A three phase 50 Hz line consists of three conductors each of diameter 21 mm, The spacing between the conductors all follows: A – B = 3m, B – C = 5m, C – A = 3.6m If the line operates at 132 k V, the reactive voltampere generatd by the line per km is

For a standard conductor the ratio of GMR to actual radius is

Post type insulators are generally used in lines operating

Which of the following distribution systems is preferred for good efficiency and high economy

A 100 km long transmission line is loaded at 110 kV.if the loss of line is 5 MW and the load is 150 MVA, the resistance of the line is

For certain geometry and operating voltage of the uncompensated transmission line, the ratio of power transfer capability to the surge inpedance loading with increase in length

What is the maximum value of a load which consume 500 KWh per day at a load factor of 0.40, if the consumer increases the load factor of 0.50 without increasing the maximum demand?

Hollow conductors are used in transmission lines to

66 kv is suitable for transmission of power over

A 100 km transmiesion line ia deaigned for a nominal voltage of 132 kV and conaiala of one conductor per phase. The line reactance is 0.726 ohm/km. The static transmission capacity of the line, in Megawatts, would be

A 3-phase, 11 kv, 50 Hz, 200 kW load has a power factor of 0.8 lag. A delta connected 3-phase capacitor is used to improve the power factor to unity. The capacitance per phase of the capacitor in micro-farads is

If 3 MW power is to be transmitted over a distance of 30km, the desired transmission voltage will be

By increasing the transmission voltage double of its original value, the same power can be despatched keeping the line loss

Extra high voltage transmission means