A large dc motor is required to control the speed of the blower from a 3 -phase ac source. The suitable ac to dc converter is, 3 -phase (a) Fully controlled bridge converter (b) Fully controlled bridge converter with freewheeling diode (c) Half controlled bridge converter (d) Converter pair in sequence control

2 Answers

Answer :

A large dc motor is required to control the speed of the blower from a 3 -phase ac source. The suitable ac to dc converter is, 3 -phase Half controlled bridge converter

Answer :

a fullu control

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