GATE EE 2011 Question Paper (13-Feb-2011) (Shift 2)

A three phase, salient pole synchronous motor is connected to an infinite bus. It is operated at no load at normal excitation. The field excitation of the motor is first reduced to zero and then increased in the reverse direction gradually. Then the armature current

A nuclear power station of 500 MW capacity is located at 300 km away from a load center. Select the most suitable power evacuation transmission configuration among the following options

The two vectors [1, 1, 1] and [1, a,a²], where a = $\left(-\frac{1}{2}+j\frac{\sqrt{3}}{2}\right)$, are

The steady state error of a unity feedback linear system for a unit step input is 0.1. The steady state error of the same system, for a pulse input r(t) having magnitude of 10 and a duration of one second as shown in the figure is

Consider the following statements

i) The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil

ii) The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit