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A single-phase full converter B-2 type connection has a RLE type of motor load connected. The minimum requirement to turn-on the device is

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in Power Electronics by (27.1k points)
A single-phase full converter B-2 type connection has a RLE type of motor load connected. The minimum requirement to turn-on the device is

(a) α > 30°

(b) Vm sinα > E

(c) Vm sinα < E

(d) α < 30°

The question was posed to me by my college professor while I was bunking the class.

My doubt is from Single Phase FW AC-DC-2 in chapter Converters of Power Electronics

1 Answer

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by (45.1k points)
Right choice is (b) Vm sinα > E

Explanation: Device will not turn on until the supply voltage exceeds the motor back emf E.

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