| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a high voltage from acting on a specific turn of a coil wound around a stator core.SOLUTION: A three-phase AC rotary electric machine 20 includes electrodes 40 and 41 which are disposed between a stator core 23 and a coil 31 and insulated from the stator core 23 and include electrostatic capacitance (stray capacitance) between the electrodes and the coil 31. The electrode 40 is connected closer to an input terminal 38 than the coil 31 in a lead wire 30, and the electrode 41 is connected closer to a neutral point 39 than the coil 31 in the lead wire 30. Thus, when a high frequency current with a surge voltage is applied to the three-phase AC rotary electric machine 20, a high frequency current can be prevented from flowing in a concentrated manner (a great current can be prevented from flowing) to a specific turn of the coil 31 by the parallel stray capacitance between the turns of the coil 31 and the electrodes 40 and 41, thereby preventing a partial charge voltage corresponding to a high frequency current of a specific turn from becoming higher.</p> |
