RPCV_Woodworker Posted October 1, 2014 Report Share Posted October 1, 2014 Hi All, My dad recently picked up a couple of three phase machines by Oliver (24" planer, 36" triple drum sander), and was wondering if anyone had experience setting up three phase converters on really high powered motors (5+ hp). I haven't got the full specs yet, but we need to get them on our 220 system... Quote Link to comment Share on other sites More sharing options...
4-Square Posted October 1, 2014 Report Share Posted October 1, 2014 Ten+ years experience with KI's converters from MA-3 through MA-5... Need individual HPs, total HPs and concurent use... Here's a link to get you started: http://www.kayind.com/tech_center/install.htm BTW: the rule of thumb in 3-phase break-even is three machines: One or two, and you're better-off purchasing single phase motors and selling the 3ph motors to recoup some investment. The other condition is 5HP: at 5HP-3P and above, you're better-off staying in the 3ph world... There's a lot of nonsence about 3ph on woodworking sites. For the types of machines you're describing, you need a rotary phase converter. For one of any size, it'll cost you a grand or so, but that's just the way it is... Sure, you can provision a static, DIY or some other nonsence --- but then again, you can also burn you shop to the ground... I'm sure your insurance guy would be facinated to learn about a Joe-DIY phase converter... BTW: If your going to play with phase converters, get yourself a decent meter: http://www.amazon.com/Fluke-376-Clamp-Resistance-Capacitance/dp/B0086963VC/ref=sr_1_2?s=hi&ie=UTF8&qid=1412461697&sr=1-2&keywords=fluke+clamp+inrush. And while your at it: http://www.amazon.com/Fluke-80BK-A-Integrated-Temperature-Probe/dp/B00116XSMY/ref=sr_1_1?s=hi&ie=UTF8&qid=1412461950&sr=1-1&keywords=fluke+temperature. You need to monitor in-rush, load, phase, frequency, flucuations, etc... 1 Quote Link to comment Share on other sites More sharing options...
minorhero Posted October 2, 2014 Report Share Posted October 2, 2014 Post over on the owwm.org forum for motors. Those guys will tell you how to create your own rpc if your electrical skills are strong enough or how to wire a prebuilt one etc. Quote Link to comment Share on other sites More sharing options...
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