| 摘要 |
PURPOSE:To effectively prevent gas generated from an insulator of a stator winding side from invading into the case of an opposite side equipment by separating a rotor side from a stator side through gas shielding case. CONSTITUTION:A bottomed cylindrical gas shielding case 15 made of a nonmagnetic material hermetically sealed with the wall of an opposite side case 1 at a hole end by surrounding a rotary shaft 9 by a rotor 13 is interposed between a rotor 13 and a stator 14. The rotor 13 side and the stator 14 side are separated through the case 15 to prevent the gas generated from an organic insulator of the stator 14 side from invading into the case 1 of the opposite side equipment through the rotor 13 side.
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