使用于交流额定电压450/750V及以下各种移动式电机、钢铁、航空、电厂、石化等高温环境中使用。

Used in AC rated voltage 450/750V and below a variety of mobile motors, steel, aviation, power plants, petrochemical and other high temperature environment.

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电源电压应控制在不大于或小于额定电压的5%范围内，如果电压过高或过低都会损坏电机。

Supply voltage should be controlled at not more than or less than 5% of rated voltage range, if the voltage too high or too low will damage motor.

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这是由于这一事实，即较高的外加电压，更快的通过电机绕组电流的上升将是，促进应用额定在更高速度的电流。

This is due to the fact that the higher the applied voltage is, the faster the current rise through the motor windings will be, facilitating the application of rated current at higher speeds.

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