Question about Neu motors - RC-Monster Forums

lincpimp · **Question about Neu motors -** 02.15.2009, 08:59 PM

Anyone know if a neu can be rewired from a y termination to a d? I know some of the lehners allowed for this, but not sure about neu motors...

suicideneil · 09:17 PM

Nay saddly. The lehners that couod be rewound (older models or high current models) had 6 external connectors, and Im sure you've seen the two different configurations of the wires coming off of those to achieve delta and wye execution. Alas, the neus onyl have the 3 wires/connectors that are extensions of the windings, no way to re-arrange them.

star

asterix

Star is Wye I think, but dont quote me on that...

sikeston34m · 02.15.2009, 09:26 PM

Quote:

Originally Posted by lincpimp

Anyone know if a neu can be rewired from a y termination to a d? I know some of the lehners allowed for this, but not sure about neu motors...

I can answer this, but I need more information.

All kinds of winding patterns for outrunners are at my fingertips. If only I had this kind of information on the 4 pole inrunners.

I'm sure there are several different ways to wind them.

lincpimp · 02.15.2009, 10:03 PM

Eyeball this, plett motor internals:

The white wrap on the right side leads me to belive this motor is a star wind, which is delta, IIRC. So a wye wind would have those 3 wires seperated and attached to the main windings that exit the can?

I may have the wind types mixed up, but am I anywhere correct with the rewiring?

sikeston34m · 02.15.2009, 10:09 PM

Quote:

Originally Posted by lincpimp

Eyeball this, plett motor internals:

The white wrap on the right side leads me to belive this motor is a star wind, which is delta, IIRC. So a wye wind would have those 3 wires seperated and attached to the main windings that exit the can?

I may have the wind types mixed up, but am I anywhere correct with the rewiring?

Under the white wrap, there are 3 wires connected to each other, right?

That's a wye termination on a wave wind I believe.

Without changing the wind, if you were to sort those out so they match their respective phases, you would increase the kv by 1.73 times.

If that is currently 3000kv, I don't think this would be a good idea without changing the wind entirely.

A Delta wind is fine in the correct configuration, but I'm not sure how well it would work with only 1 turn.

I turned to the Power Croco site which gives MANY different configuration for many pole counts, but they are all outrunner motors.

We need to know the configurations of the factory Neu winds. They can be changed in various ways to produce different results.

sikeston34m · 02.15.2009, 10:11 PM

I may be off somewhat on the previous post.

I don't have a good understanding of the wave wind yet.

It only uses 1 wire composed of many different strands aka 1 turn.

lincpimp · 02.15.2009, 10:16 PM

My main question is can I rewire a neu 2y to a neu 2d...

sikeston34m · 10:18 PM

Quote:

Originally Posted by lincpimp

Eyeball this, plett motor internals:

The white wrap on the right side leads me to belive this motor is a star wind, which is delta, IIRC. So a wye wind would have those 3 wires seperated and attached to the main windings that exit the can?

I may have the wind types mixed up, but am I anywhere correct with the rewiring?

See how each winding jumps over three stator poles?

I believe with this configuration, it is magnetizing all three teeth to create one magnetic pole X4.

When the ESC shifts to the next phase, it jumps one tooth with the NSNS magnetic polarity.

It is a 4 pole armature? correct?