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Dual speed 3 phase motor from single phase supply
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<blockquote data-quote="robertlaurenson" data-source="post: 498366" data-attributes="member: 31721"><p>Hi all </p><p> What i have is a "split phase" supply, there are only 2 overhead lines and i have a split phase supply from a center tapped transformer. </p><p> The supply is 240v from phase to Neutral and 480v phase to phase, very similar to the USA 115, 230v system. </p><p></p><p>The cost of installing 3 phase would be in the region of 25k, so certainly not something i intend to do at the moment, maybe in the future if the business takes off then yes but not just now.</p><p></p><p>So ultimately what are my options, the ones i know of so far are.</p><p></p><p>1, Rotary phase converter (either 240v or 480v input)</p><p></p><p>2, Static phase converter</p><p></p><p>3, VFD on each motor of each machine (i have just heard today that some VFD's can take a 480v input, which i think means that i can feed my 480 into it and then it becomes a plug and play into any given machine?)</p><p></p><p>4, The Unique3phase method? not sure on this one but it has been reccomended</p><p></p><p>Any help would be greatly appreciated.</p><p></p><p>Thanks</p><p></p><p>Robert</p></blockquote><p></p>
[QUOTE="robertlaurenson, post: 498366, member: 31721"] Hi all What i have is a "split phase" supply, there are only 2 overhead lines and i have a split phase supply from a center tapped transformer. The supply is 240v from phase to Neutral and 480v phase to phase, very similar to the USA 115, 230v system. The cost of installing 3 phase would be in the region of 25k, so certainly not something i intend to do at the moment, maybe in the future if the business takes off then yes but not just now. So ultimately what are my options, the ones i know of so far are. 1, Rotary phase converter (either 240v or 480v input) 2, Static phase converter 3, VFD on each motor of each machine (i have just heard today that some VFD's can take a 480v input, which i think means that i can feed my 480 into it and then it becomes a plug and play into any given machine?) 4, The Unique3phase method? not sure on this one but it has been reccomended Any help would be greatly appreciated. Thanks Robert [/QUOTE]
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Dual speed 3 phase motor from single phase supply
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