| 摘要 |
PURPOSE:To eliminate noise and vibration with a simple structure by commonly using a DC side terminal of a rectifier connected with the secondary winding of a transformer to supply a DC exciting power to phase intermediate terminals of armature winding. CONSTITUTION:The terminal 16 of the secondary winding 15 of a transformer 14 is electrically connected with phase intermediate terminals of the windings 1 to form a closed circuit which includes an armature winding 1 as seen from the terminal 15. On the other hand, another winding connecting points 3-5 from the intermediate terminals of the phases 11-12 of the windings 1 are connected with external connecting wirings 17, and electrically connected with one ends of the phases of the primary winding 18 of the transformer 14. DC side terminals L, M of a rectifier 19 connected with the secondary winding 15 of the transformer 14 are commonly used to electrically connected to the intermediate terminals of the phases 11-13 of the windings 1. |
