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CHANGZHOU AJS MOTOR CO., LTD
ADD：No. 6-236, Nuochenggaodi Business Plaza, Tianning District, Changzhou City，Jiangsu Province, China
TEL：0086-13775276892
E-mail：adam@ajs-motor.com
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| Insulation grade of insulating materials |
| Publisher：admin Release time：2019-12-17 16:06:46 Read：401次 |
The so-called limit working temperature of insulating material refers to the temperature of the hottest spot in the winding insulation during the operation of the motor in the design life expectancy. According to experience, the service life of class a material can be up to 10 years at 105 ℃ and class B material at 130 ℃, but in practice, the ambient temperature and temperature rise will not reach the design value for a long time, so the general service life is 15-20 years. If the operating temperature exceeds the limit working temperature of the material for a long time, the aging of the insulation will be intensified and the service life will be greatly shortened. Therefore, temperature is one of the main factors of the life of the motor in operation. |
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