GATE EE 2017 Question Paper (11-Feb-2017) (Shift 2)

A phase-controlled, single-phase, full bridge converter is supplying a highly inductive DC load. The converter is fed from a 230 V, 50 Hz AC source. The fundamental frequency in Hz of the voltage ripple on the DC side is

In the circuit shown, the diodes are ideal, the inductance is small and I₀ ≠ 0 . Which one of the following statements is true?

A three-phase voltage source inverter with ideal devices operating in 180° conduction mode is feeding a balanced star-connected resistive load. The DC voltage input is V${}_{dc}$. The peak of the fundamental component of the phase voltage is

A 3-phase, 4 pole, 400 V, 50 Hz, squirrel-cage induction motor is operating at a slip of 0.02. The speed of the rotor flux in mechanical rad/sec sensed by stationary observer, is closest to

The figure shows the per-phase representation of a phase-shifting transformer connected between buses 1 and 2, where α is a complex number with non-zero real and imaginary parts.



For the given circuit Y${}_{bus}$ and Z${}_{bus}$ are bus admittance matrix and bus impedance matrix respectively, each of size 2 × 2. Which one of the following statements is true?