The design and manufacture of 3 Phase induction motors usually take into account the temperature conditions of general industrial and domestic applications, which are usually limited to certain conditions temperature range to ensure motor performance and reliability. For example, the design temperature range of ordinary motors is usually 0° C to 40° C, the temperature in this range ensures the good performance and reliability of the motor in normal temperature environment. However, when electricity the machine surface temperature exceeds the normal range, such as more than 60℃-90℃ range, it may cause adverse effects on the motor’s service life and performance.

The lower 3 phase electric ac motor surface temperature, the better it will be, which mainly because too high temperature may affect the performance and life of the motor. Electric machine will produce a certain amount of heat, but if the motor surface temperature is too high, it may accelerate the aging of the material inside the motor and reduce insulation performance and even causes motor damage. Therefore, it is very important to keep the motor surface temperature within the appropriate range.

 In addition, the temperature rise of the motor is also an important consideration. Temperature rise refers to the energy conversion of the motor during operation.

The heat generated causes the temperature of the components of the motor to rise. If the temperature rise is too high, it exceeds the tolerance temperature of the motor material or parts degree, it may lead to the motor can not operate safely and stably, or even damage. Therefore, the temperature rise of the control motor is within the safe range.It is an important indicator to ensure the quality and reliability of the motor.

In summary, the lower the motor surface temperature, the better it will be, because too high temperature may accelerate the aging of the material inside the motor, reduce insulation performance, and even lead to motor damage. The key to keep motor’s energy and longevity is to keep the motor surface temperature within the appropriate range and control the temperature rise.