All stators are similar in appearance. The differences are only in the size of the magnetic wires, in the number of winding turns and in the diameter of the wire. An anchor is located inside the stator. In electric motors of a car, the stator consists of permanent magnets. In an alternator, the stator consists of variable magnets.
Necessary
- - magnetic wire of the required diameter and length;
- - a source of open flame;
- - syntoflex or pressspan;
- - electrical cardboard;
- - heat-resistant film and tape;
- - keeper tape and varnish
Instructions
Step 1
Determining a stator malfunction, most often you will encounter a winding break, an interturn short circuit in the winding coil, insulation breakdown on the stator case and winding burnout due to short circuits and insulation breakdowns.
Step 2
When starting the repair of the stator, remove the defective coils. Then, burn the removed coil with an open flame (eg a burner flame). When firing, be careful not to spoil the stator iron. When you have access to the old winding, count the number of turns and measure the diameter of the wires used. Also, measure the length of the protruding front ends and sketch the winding pattern. This data is required for winding a new coil.
Step 3
Wrap the coil on a frame made with the expectation that this coil lies in the grooves of the stator, while slightly increasing its frontal part. The frame should be approximately 1-2 cm longer than the stator, and the width should be equal to the distance between the grooves. Before installing the coil on the stator, clean it with an iron brush.
Step 4
Cut the insulating gaskets from syntoflex or press board so that they protrude from the ends of the groove by 2.5-3 mm on each side, and when tightly laid in the shape of the groove, protrude from it by 3.5-4 mm. This will make it easier to seal the grooves. After completing one gasket, cut another 36 similar ones along its contour and put them in the grooves.
Step 5
When winding, mark the beginning and end of the windings to position the coil in a phased manner. To maintain correct phasing, when installing the stator coil in the grooves after winding, make sure that the marks of the beginning and end of the windings are located diagonally.
Step 6
Plug the stator coil after winding. To do this, cut out and make a sleeve from electrical cardboard with a thickness of 0.2 mm. The sleeve length should exceed the stator length by 1.5-2 mm. Wrap the finished part with heat-resistant film and securely fasten with tape.
Step 7
Place the sealed coil in the grooves of the stator and shape it so that the armature can move freely. After that, tighten the spool with keeper tape and saturate with varnish. Instead of varnish, you can use any other impregnating compound. Dry the stator and reassemble the motor (generator).
