电机定子绕组的温升与电流呈正相关，电流增大时，温升自然也会增加，而且增加的幅度还要大一些。除电流影响外，温升还与其他关联因素有关，如生产加工过程中工艺波动、质量控制等因素。为规避由于工艺波动等因素可能导致的不符合，产品设计时应留有一定的裕度。

电机产品技术条件中会对电机额定电压、频率范围进行了规定，超出该范围时电动机将无法正常工作，因而应保证电机所对应的电网参数符合电机正常运行条件，直接是电压对于电机绕组的影响，特别是在户外架接的临时线路，出于成本及物料安全性等原因，临时线路更多的情况选择铝芯线，导致真正施加于电机的电压严重不足，此时电机电流特别大，结果会导致电机严重发热，在较短时间内因过热而烧毁。

当电机成品温升不合格时，补救措施不多，我们可以通过增加浸漆次数、增大风扇宽度及外径、车小转子直径以增大气隙等牺牲其他性能的方式进行温升控制和补救。加大气隙，对2极电机可能有效，因为杂散损耗下降，转子对定子的热辐射减弱；但对多极电机可能得不偿失，因为励磁电流会增大明显。

The temperature rise of the motor stator winding is positively correlated with the current. As the current increases, the temperature rise naturally also increases, and the increase is even greater. In addition to the influence of current, temperature rise is also related to other related factors, such as process fluctuations and quality control during production and processing. To avoid possible non conformities caused by process fluctuations and other factors, a certain margin should be left in product design.
The technical specifications for motor products specify the rated voltage and frequency range of the motor. If it exceeds this range, the motor will not be able to operate normally. Therefore, it is necessary to ensure that the corresponding power grid parameters of the motor meet the normal operating conditions of the motor. The most direct impact is on the voltage of the motor winding, especially for temporary lines connected outdoors. Due to cost and material safety reasons, aluminum core wire is more commonly used for temporary lines, This leads to a serious shortage of voltage applied to the motor, where the motor current is particularly high, ultimately resulting in severe heating of the motor and burning out due to overheating in a short period of time.
When the temperature rise of the finished motor is not up to standard, there are not many remedial measures. We can sacrifice other performance methods such as increasing the number of times the motor is immersed in paint, increasing the width and outer diameter of the fan, and increasing the diameter of the small rotor to increase the air gap for temperature control and remediation. Increasing the air gap may be effective for 2-pole motors, as stray losses decrease and the thermal radiation from the rotor to the stator weakens; But for multipole motors, the benefits may not outweigh the losses, as the excitation current will increase significantly.