| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce surge voltage generated in an alternating-current (AC) motor driven by an inverter. <P>SOLUTION: A three-phase AC motor 100 includes a stator 10 using windings 20, 30, and 40 of each of the phases in which a coating conduction wire is wound so as to be distributed and overlapped around a plurality of slot of a stator core 11 as y-connection, and is driven by an inverter. The outer surfaces of coating conduction wires 211a and 211b of a first turn 211 in the start of winding of an input side first coil 21 of each of the phases are covered with an insulation tube 220, and a distance between the coating conduction wires 211a and 211b of the first turn 211, and a coating conduction wire of remaining turns 212 and 213 is increased. <P>COPYRIGHT: (C)2012,JPO&INPIT |
