A. Does not contains second harmonic
B. Does not contains third harmonic
C. Does not contains fifth harmonic
D. Does not contains seventh harmonic
Related Mcqs:
- n a phase controlled 3 phase ac voltage controller, the harmonic present is__________?
A. 2nd
B. 3rd
C. 5th
D. 7th - In a 3 phase CSI, if the required line output voltages are balanced and 120 degree out of phase, then the chopping angles are used to eliminate only the harmonics at frequencies
A. 5
B. 7
C. 11
D. All of these - For commutation in three phase PAC, normally balanced three phase voltages VR, VY and VB are connected to the three legs of the converter via______________?
A. Three inductances
B. Three capacitances
C. Three resistance
D. Three transistors - In single phase VSI, the harmonic which is not present is____________?
A. 2nd
B. 3rd
C. 5th
D. 7th - In a 3 phase VSI out of eight valid states, the number of valid states that produce zero ac line voltages is/are_________?
A. One
B. two
C. Three
D. Four - A single phase full bridge inverter can operated in load commutation mode in case load consist of______?
A. RL.
B. RLC underdamped.
C. RLC overdamped.
D. RLC critically damped - A single phase one pulse controlled circuit has a resistance R and counter emf E load 400 sin(314 t) as the source voltage. For a load counter emf of 200 V, the range of firing angle control is _____?
A. 30° to 150°.
B. 30° to 180°.
C. 60° to 120°.
D. 60° to 180°. - A single phase full bridge inverter can operate in load commutation mode in case load consists of____________?
A. RL.
B. RLC underdamped.
C. RLC overdamped.
D. RLC critically damped. - Thyristor can be protected from over voltages by using____________?
A. voltage clamping device.
B. fuse.
C. heat sink.
D. snubber circuit. - In ac – dc conversion, when the switch is closed then the sum of voltages around the loop is____________?
A. Zero
B. Non zero
C. Equal to the sum of voltage when switch is open
D. Twice of the voltage when switch is open
