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Power Systems

Welcome to  Power Systems.

The quiz will randomly run 20 questions from Power Systems which you have to answer in 10 minutes.

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Series capacitor is used in a transmission line to

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

The approximate cost ratio of a 220 kv, underground cable transmission and 220kv/ O/H transmission is

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

Post type insulators are generally used in lines operating

A voltage of 1000 kV is applied to an overhead line with its receiving end open. If the surge impedance of the line is 500 ohm, then the total surge power in the line is

Guy wire is employed for

A consumer consume. 600 kWh per day at a load factor of 0.40. If the coneumer increases the load factor of 0.70 without increasing the maximum demand, what is the consumption of energy in kWh

The most accurate and versatile method of achieving reactive power compensation is by using

The per unit impedance ofa circuit element is 0.15. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be

The conductor of a 10 km long, single phase, two wire line are separated by a distance of 1.5 m. The diameter of each conductor is 1 cm, If the conductors are of copper, the inductance of the circuit is

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

In HV transmission, the spacing between sub-conductors of a bundle is approximately

A single phaae transmisson line of impedance j 0.8 ohm supplies a resistive load of 500 A at 300 V. The sending end power factor is

Transposition of transmission line is done to

In a transmission system the feeder supplies power to

Extra high voltage transmission means

66 kv is suitable for transmission of power over

On what basis is the insulation level of a 400 kv, EHV overhead transmission line decided?

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


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