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In a 3-phase full converter using six SCRs, gating circuit must provide

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in Power Electronics by (27.1k points)
In a 3-phase full converter using six SCRs, gating circuit must provide

(a) one firing pulse every 30°

(b) one firing pulse every 90°

(c) one firing pulse every 60°

(d) three firing pulses per cycle

This question was addressed to me during an interview.

Question is taken from Firing Circuits-1 in chapter Other Circuits of Power Electronics

1 Answer

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by (45.1k points)
Correct choice is (c) one firing pulse every 60°

Easiest explanation: 60° x 6(devices) = 360°.

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