In a single phase dual converter, a1, and a2 are firing angles of the two conver

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Question
In a single phase dual converter, a₁, and a₂ are firing angles of the two converters. Then
Options
A. a₁ - a₂ =
B. a₁ + a₂ = p
C. a₁ - a₂ = p
D. a₁ + a₂ =

Correct Answer

a₁ + a₂ = p

Explanation

Since one converter is rectifying and the other is inverting

V_dc1 = -V_dc2

or a₁ + a₂ = p.

Power Electronics problems

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Options
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Options
A. 200 V
B. 2(200) V
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Options
A. 20 mH
B. about 31 mH
C. about 51 mH
D. about 92 mH

8. The gate current required to turn on an SCR is
Options
A. few amperes
B. a few mA
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Options
A. p radians
B. (p - a) radians
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Options
A. 2 ?s
B. 5 ?s
C. 20 ?s
D. 50 ?s

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