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Q#1 Phase Controlled Converter GATE EE 2007 MCQ +1 mark -0.33 marks

A single phase full-wave half-controlled bridge convener feeds an inductive load. The two SCRs in the converter are connected to a common DC bus. The converter has to have a freewheeling diode

Because the converter inherently does not provide for free-wheeling

Because the converter does not provide for free-wheeling for high values of triggering angles

Or else the free-wheeling action of the converter will cause shorting of the AC supply

Or else if a gate pulse to one of the SCRs is missed, it will subsequently cause a high load current in the other SCR

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