A fully-controlled three-phase bridge converter is working from a 415 {V}, 50 {Hz} {AC} supply. It is supplying constant current of 100 {A} at 400 {V} to a DC load. Assume large inductive smoothing and neglect overlap. The rms value of the AC line current in amperes (round off to two decimal places) is______________.

GATE Electrical Engineering (EE) 2019 Solved Paper

Question : 50 of 65

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A fully-controlled three-phase bridge converter is working from a

415 {V}, 50 {Hz} {AC}

supply. It is supplying constant current of

100 {A}

400 {V}

to a DC load. Assume large inductive smoothing and neglect overlap. The rms value of the AC line current in amperes (round off to two decimal places) is______________.

Your Answer:

Validate

Solution:

In a

3-ϕ

bridge rectifier
RMS value of AC line current

"\;=I_{0} √{\;{2}/{3}}

=100 √{\;{2}/{3}}=81.66

Amps

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