泵用同步电动机是与日本合作产品，磁极线圈完全按照日本东芝公司设计图纸加工。

Large pump synchronous motor is the cooperative product with Japan. According to standard of Japanese Toshiba corporation, pole coil is manufactured strictly.

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通过生产实践观察和理论分析，阐述了矩形磁极线圈弯曲半径对弯角部位形状尺寸的影响。

Through the observation to the practical production and analysis with the theories, the influence of bend radius inside the rectangle pole coil against dimension of the bend corner part is discussed.

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介绍了一种由冲击电压发生器和峰值电压表组成的用于电机磁极线圈匝间绝缘试验的设备，详细说明了设备的工作原理及关键技术，给出了试验结果。

The paper introduces a type of the turn-to-turn insulation test equipment including an impulse-voltage generator and a peak voltmeter for the electrical machine pole coil.

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