Re: [CAD_CAM_EDM_DRO] Re: Bridgeport motor question

Hi Tim

It sounds like you may have a re-wound motor there - In which case, you'll
have to crack open the crown and try to find the star point (assuming it is
wired for 414V). You may be lucky enough to have it wired in delta, but don't
hold your breath !

The 9 wire termination would have allowed for operation on a wide range of
voltages found across the world - USA and UK were not the only markets
Bridgeport sold their machines in.

BTW I'm running one of these 2HP motors on a 240V single phase supply with a
Eurotherm 601 1.5KW VFD.

Regards, Paul.

On Saturday 03 January 2004 2:16 pm, rivet3man wrote:
> No, you missed the vital line above 'there are actually just the 3
> wires coming from the coils'

> The point was, as the terminations described on the rating plate
> aren't available, will connecting a 9-wire motor in 'series delta' be
> just as good as 'parallel star'. If it is, why has the US practice of
> 9-wire motors arisen (just out of curiosity?)?

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