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 Topic Title: 3 phase bridge rectifier Topic Summary: Current formula for 3ph bridge rectifier Created On: 26 July 2011 03:45 PM Status: Read Only Linear : Threading : Single : Branch
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 26 July 2011 03:45 PM GMAC Posts: 64 Joined: 12 September 2006 Does anyone know the factor that can be applied to the 3 phase current input of a 3 phase bridge rectifier to determine what the DC current output will be, in order to size the wiring connected to the DC output terminals? For example if the 3ph input current is 22Aac what would be the effective DC current output I would use to size the DC output wiring? 26 July 2011 06:22 PM ArthurHall Posts: 738 Joined: 25 July 2008 for half wave single phase the DC current = 0.318 X Peak AC current Full wave single phase the DC current = 0.635 X Peak AC current Full wave three phase the DC current = 0.955 X peak AC current. therefore 22A /0.707 x 0.955 = 29.7A 27 July 2011 08:22 AM GMAC Posts: 64 Joined: 12 September 2006 Thank you Arthur.
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