Category: Power Electronics

A. Snubber circuit
B. Fuse
C. Equalizing circuit
D. Circuit breaker

A. It will rotate at the same speed as that with its field winding closed
B. It will rotate at less speed as that with its field winding closed
C. It will rotate at dangerously high speed
D. None of these

A. Large number of reactive component
B. Low stress on switch
C. Low stress on capacitor
D. None of these

A. 1.5.
B. 0.5.
C. 1.0.
D. 1.2.

A. There is always a path for the dc current independent of the ac line
B. There is always a path for the ac current independent of the ac line
C. There is always a path for the dc current dependent of the ac line
D. There is always a path for the ac current independent of the ac line

A. Permanent angle converter
B. Phase angle converter
C. Phase angle commutation
D. Phase and commutation

A. Identical to line voltage in a VSI
B. Identical to line current in VSI
C. Identical to phase voltage in VSI
D. Identical to phase voltage in CSI

A. High di/dt
B. High dv/dt
C. Low di/dt
D. Low dv/dt

A. junction J2 is in reverse bias and J1, J3 is in forward bias.
B. junction J3 is in forward bias and J1, J2 is in reverse bias.
C. Junction J1, J3 is in reverse bias and J2 is in forward bias.
D. Junction J1 and J2 is in forward bias and J3 is in reverse bias.

A. Phase lead helps to increase the phase margin of the control loop
B. Phase lag helps to increase the phase margin of the control loop
C. Phase lead helps to decrease the phase margin of the control loop
D. Phase lag helps to decrease the phase margin of the control loop