calculating size for a sola hd of the 63taa3-- type

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yeroc

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colorado
Have a medical clinic that has power company issues with their equipment. Have figured a 63taa375 for the 200 amp panel feeding the wiring for the building. Another issue is the x-ray machine and thats what has me confused. The machine is 208 single phase with a draw of 140 amps for less than a second. Sola doesn't make a single phase conditioner big enough for this application. If I use a 3 phase conditioner, what size would it be. Solas tells me that i have to derate the 3 phase conditioner by 2/3. help!!!!
 
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