| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotating electrical machine which can correct rotational unbalance easily in a rotor rotating at high peripheral speed of 3,500m/min or above. Ž<P>SOLUTION: Annular covers 14A and 14B are attached to the outer circumferential side at the end of winding of a rotor winding 11 projected from the laminated edge of a rotor core 10, and a balance correction material 22 having a specific gravity of 1.5-5.0 which is higher than that of insulating resin impregnating the rotor winding 11 is fixed to the inner circumferential surface of the annular covers 14A and 14B. With such an arrangement, unbalance can be corrected using a small quantity of balance correction material 22. Furthermore, since the balance correction material 22 is held by the annular covers, scattering of the balance correction material 22 can be prevented even during high speed rotation, and rotational balance can be maintained over a long term. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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