In a 3 phase half wave rectifier, when firing angle is less than 90 degree, then the average dc output voltage becomes__________________?

Related Mcqs:

Which of following devices has highest di/dt and dv/dt capability?

A. SIT B. SITH C. GTO D. SCR...

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...

Due to non sinusoidal waveform of the input current, the power factor of the rectifier is____________?

A. Negatively affected by firing angle B. Negatively affected by distortion of the input current C. Positively affected by both firing angle and distortion of the input current D. Both (a) and (b)...

The output current in PWM DC – DC converters is equal to___________?

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Power electronics essentially deals with control of a.c. power at____________?

A. Frequencies above 20 kHz B. Frequencies above 1000 kHz C. Frequencies less than 10 Hz D. 50 Hz frequency...