| 1 | Multiple-phase windings, with and without phases interconnected. | |
| 2 | Windings should be dried in a drying oven. | |
| 3 | The terminals of the rotor winding are connected to three slip rings. | |
| 4 | Three separate windings, with and without phases interconnected. | |
| 5 | Clean off the dust in the windings before reassembling. |