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How to Convert a 3 Phase Motor to Single Phase


By Dave Rongey - Summary:

3 Phase Motor Conversion Options: Single Phase Rotary Phase Converter, Electric Motors and VFD Variable Frequency Drives.

Power Supply Options for a 3 Phase Motor

Electrical Question: I have a German woodworking machine that is powered by a 380 V 3 phase motor rated at 3KW 50 HZ 6.3 Amps. I have been making inquiries as to how to power this motor from a 240 V single phase supply, and I would welcome any advice on the options that I believe I have.

I know just enough about this subject to be dangerous. I will be using a qualified electrician. Any help would be gratefully appreciated. Thank you for taking the time.

This electrical wiring question came from Martin, in Upperville, Virginia.

Dave’s Reply:
Thanks for your electrical wiring question Martin.

3 Phase Motor Conversion Options

To make a decision about how to convert a machine to work with a different voltage and phase it would be good to identify all options and then determine the best conversion process.

The Machine to be Converted

Rotary Phase Converter

Electric Motors and VFD Variable Frequency Drives

Electrical Power Motor Conversion Summary

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