GATE EE 2000 | Single and Three Phase Rectifier Question 51 | Power Electronics

GATE EE 2000

MCQ (Single Correct Answer)

-0.3

A thyristorised three phase fully controlled converter feeds a $$dc$$ load that draws a constant current. Then the input $$ac$$ line current to the converter has

An $$r.m.s$$ value equal to the $$dc$$ load current

An average value equal to the $$dc$$ load current

A peak value equal to the $$dc$$ load current

A fundamental frequency component, whose $$r.m.s$$ value is equal to the $$dc$$ load current

GATE EE 1999

MCQ (Single Correct Answer)

-0.3

Resonant Converter's are basically used to

Generate large peaky voltage

Reduce the switching losses

Eliminate harmonics

Convert a square wave into a sine wave

GATE EE 1997

MCQ (Single Correct Answer)

-0.3

In a dual converter, the circulating current

Allows smooth reversal of load current, but increases the response time

Does not allow smooth reversal of load current, but reduces the response time

Allows smooth reversal of load current with improved speed of response

Flows only if there is no interconnecting inductor

GATE EE 1996

MCQ (Single Correct Answer)

-0.3

In a $$3$$ - phase controlled bridge rectifier, with an increase of overlap angle the output $$dc$$ voltage

Decreases

Increases

Does not change

Depends upon load inductance

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