Re: [CAD_CAM_EDM_DRO] Re: OT Electric Motor Question

Mark wrote:

> Hello,I`m not sure if I`m putting this in the right place.If this
> motor only has 440v and star and delta signs on the nameplate then I
> would say that the six wires are the coil ends and the motor can only
> be connected to 440v 3ph either star-delta or star.I can give you
> more
> info on how to identify the tails if you need it.all the best Mark

If you figure out what the voltage across the windings is when the motor
is wired in star (Wye) configuration, you will find it is 253 V
Line-Neutral.
If you now rewire it to Delta, you still need 253 V across the windings,
which are now in a Line-Line connection. Therefore, the motor must
be run from an approximately 253 V L-L source. There is no motor that
runs on the same voltage in both Wye and Delta connections.

Jon