AC Single phase stator wiring help

[Peter McBride]

This stator is out of a Wisconsin VG4D gas motor. Both black leads go to a rectifier. Red and white leads go to a regulator. White lead pigtail goes to ammeter gauge and on to battery.

I need to rewind but for the life of me I can't figure out how to connect the winding to the 4 leads coming off of the stator. I believe this is a single phase stator. This stator is wired with 3 separate wires winding around each pole alternating between left and right hand winding.

Most single phase stators just have 2 A/C leads that go to a 3 pole Rectifier/Regulator 2 poles for A/C power and one pole to Battery.

 

[Baluncore]

What is the rotor? Is it permanent magnets?

I would expect the three wires to be a delta connected three phase for rectification. How many diodes or terminals are there on the rectifier?

What is the purpose of this alternator. Does it run lights or only charge a battery?

 

[Peter McBride]

This is mounted on a John Deere Swather (Farm Equipment) alternator is for charging std 12 volt car battery. I am sure this is single phase since I unwrapped and it was not coiled as delta. Manufacturers notes refer to wiring stator in such a way to safeguard against connecting battery the wrong way. Redundant safety measures like this are common with farm equipment.

 

[Baluncore]

I need to rewind but for the life of me I can't figure out how to connect the winding to the 4 leads coming off of the stator. I believe this is a single phase stator. This stator is wired with 3 separate wires winding around each pole alternating between left and right hand winding.

The irrational situation indicates a false assumption or a poor observation. Assume nothing. You need to go back to identify what you have got wrong. We can't guess at the situation when misleading information is present.
There is probably a circuit diagram in a maintenance manual. Without a model number it is difficult to find service information.

I repeat;

How many diodes or terminals are there on the rectifier?

 

[Peter McBride]

Rectifier has 2 leads. (Black Wires) Voltage regulator has 2 leads (Red and White Wires). Wisconsin VG4D 1980 Motor. My objective is to rewind the stator to its original configuration, but since 3 of the 4 leads have broken away from stator I can't tell where they attached to the stator windings. Thanks for you help.

 

[Baluncore]

Start here;
http://www.pittauto.com/customer/piauel/pdf/Wisconsin_FlywheelAlternators.pdf

Index page shows 4 versions of stator are used on the VG4D.
25 amp alternator circuit. ENA120
10 amp alternator circuit. ENA121
Obsolete 10 amp/25 amp alternator circuit
30 amp alternator circuit. ENA132

Page 30, 31 show testing procedure for 12V, and the way the three windings are connected.
There may be a different turns count for the regulator winding but the two AC windings to the rectifiers will be the same.

 

[Baluncore]

It appears that there are more turns on the regulator winding, or the REG wire is thinner. I suspect the regulator works by saturating the stator poles using the higher voltage regulator winding. For that reason it is important to document one pole so the order of connections can be correctly made.

You will need to number the poles, and the ends of the wires. Then carefully unwind wire from one pole of the stator, in the opposite way and order to wires being wound. For each of the three wires count the number of turns on the pole. Notice the direction that each wire is wound on that pole, and measure the diameter of each wire. Notice any diameter differences.

Let us know what you get.