During the commutation period in 3 phase converter, overlap time is____________?

Related Mcqs:

1. During the commutation period in 3 phase converter, overlap time is_____________?

   A. Dependent on the load current
   B. Dependent on the voltage
   C. Dependent on both the load current and load voltage behind the short circuit current
   D. Independent on both the load current and load voltage

2. 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

3. Voltage commutation circuit can be converted into a current commutation by interchanging the positions of____________?

   A. Diode and capacitor
   B. Capacitor and SCR
   C. Inductor and capacitor
   D. Capacitor and load

4. In the operation and control of both naturally commutated and forced commutated SCR base converter, commutation plays an important role. The converters is / are ___________?

   A. AC – DC
   B. DC – DC
   C. DC – AC
   D. All of these

5. In a three phase converter, the number of notches per cycle is____________?

   A. One
   B. Three
   C. Six
   D. Nine

6. In a flyback converter, the inductor of the buck-boost converter has been replaced by a_____________?

   A. Flyback capacitor
   B. Flyback resistor
   C. Flyback transformer
   D. Flyback transistor

7. 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

8. 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.

9. A single phase ac – dc converter is also known as____________?

   A. rectifier
   B. inverter
   C. chopper
   D. regulator

10. In commutation PAC stands for_______?

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