电机温升

电机温升(Motor temperature rises)

电机通流后产生电流热效应，随着时间的推移， 电机表面的温度不断地上升直至稳定。稳定的条件是在3个小时内前后温差不超过2℃，此时测得电机表面的温度为此电机的最终温度，温度的单位为度（℃）。上升的温度中超过周围空气的温度（环境温度）的这一部分温度称为温升，温升的单位为开氏（K）。温升就是电机温度比周围环境温度高出的数值。
(The motor will heat up when it is powered on. The temperature of the motor's surface will continue to rise until it is stable. Within 3 hours after the temperature is stable, the temperature is allowed to change within 2 degrees Celsius.The part at which temperature rises above the ambient air temperature (ambient temperature) is called the temperature rises. The unit of temperature rises is kelvin (K). The temperature rise is the value that higher than the ambient temperature.)

额定温升：是指在设计规定的环境温度(十40℃)下，电动机绕组的最高允许温升，它取决于绕组的绝缘等级。
(Rated temperature rises: refers to when the environmental temperature is under , the maximum allowable temperature rise of the motor winding. It depends on the winding insulation grade.)

• 计算公式(Calculation formula)： θ=T₂-T₁

θ——温升(Temperature rises)

T1——实际冷却状态下的绕组温度(即环境温度,室温不允许超过40℃)
(Winding temperature in actual cooling condition (that is ambient temperature, room temperature not exceeding 40℃))

T2——发热状态下绕组温度 (Winding temperature in heating condition)