Conversion of 1HP 3phase lathe motor to single phase 240V?

Question

I wish to convert my Colchester Bantam motor and
switchgear from 3 phase 415V to single phase 240V. I am looking for a supplier to supply what I need, any advice would be appreciated. I must retain the forward/reverse capability of the motor. The current 3 phase motor code is -Type BK2412G B56. Do I need a capacitor start/run motor?

Answer 1

That's all you need, a start capacitor and a little wiring knowledge... alternatively you can by an AC drive, 3ph in single out.

I would get the yellow pages and find your nearest rework agent, they will have anything you need...

Answer 2

I would leave your motor alone and take the opportunity to go to variable electronic spped control. A three phase inverter is what I'd use. It retains all the touque and they provide really smooth running from near zero to full speed. Something like an IMO Jaguar Cub is a good range. For 1HP somthing like a CUB5A-1 might be for you. See the reference link below.

http://www.imopc.com/product_details/37/111/cub.html

You can still use your external forward/reverse switch and will need to mount a potentiometer somewhere for speed control.

You'll also need a little knowledge in navigating through the options on the controller, its a little dunting but mostly the default options will do.

IMO offer direct tech support and are very helpful.

Answer 3

You have two workable options. Either change the motor for a single phase one or get a singlephase to 3-phase transformer. Connect the 3-phase side to your lathe motor and the single phase side to your single phase supply. Make sure that the transformer is of adequate rating (big enough). Best, and probably cheapest option is to just change the motor and buy a new on/off/reversing switch to go with it.

Answer 4

Contact Rexel Electrical Supply.

Ask Them.

Answer 5

Torch you car and watch it burn.