I need a 180Hz AC supply two phase or i would take three. 20kVA 220v ac output. I have been looking at motor generator sets. However the generator typically is 400hz. 180 is hard to find. Anyone tried running a 400hz generator slow enough to output 180Hz by using a VFD to drice the motor part, or by gearing down the motor output shaft? If so is there a reduction in efficiency/output?
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