Power Systems Objective Questions & Answers – Set 1

A transmission line has a reactance of 1 Pu is operating at V_s = V_r = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power and the transmission line is compensated with a series capacitance of 0.5 Pu. Find the load angle with series capacitance compensation ?

Which of the following is/are the advantages of synchronous phase modifier over the shunt compensation?

Under over excitation synchronous phase modifier works as

Under excited Synchronous phase modifier works as

Which of the following statement is true

Which of the following method is used for changing power factor from leading to lagging

Tarapur nuclear power plant has which type of reactor?

Advantages of higher transmission voltage is/are

Maximum power transfer in a transmission line can be obtained by

Ferranti effect will not occur in which of the following transmission lines

India’s largest thermal power station is located at

Which of the following methods is/are used for reactive or voltage compensation

NTPC (National Thermal Power Cooperation) has its only thermal power generating unit in West Bengal at

Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is

Objectives of power system is/are

A transmission line has a reactance of 1 Pu is operating at V_s = V_r = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power. Find the load angle?

If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400 : 5, then plug setting multiplier will be

Plug setting of a relay can be altered by varying

Maximum power transfer capability of transmission line can be increased by

What is the total installed power capacity (MW) in West Bengal as published by ministry of power in 2011?

Stability of a transmission line can be increased by

Objectives of power system is/are

Oxide film arrestor has which of the following properties?

Which of the following rotor is used in thermal power plants?

What should be the minimum depth (in metre)of cable trench to dug for laying of 1.1 kV?

Length of the cable is doubled, its capacitance C will be

The main objectives of electrical power transmission is/are

Ferranti effect can be compensated by which of the following

Galvanised steel is generally used as

For flat voltage profile system, voltage regulation is