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Created by alisa on 15th Aug 2014 , 9:35 am Iram, Islamabal
Description The insulation of the motor rating refers to their level of heat insulation materials used,points A,E,B,F,H.Allow temperature refers to the temperature of the motor and temperature higher than the limits of the surrounding environment.Temperature rating of the insulation class A E B F class H Maximum allowable temperature (105 <strong><a href="http://dongfeng-motor.en.alibaba.com/">www.dongfeng-motor.com</a></strong> ℃),120,130,155,180 Winding temperature rise limit (K) 60,75,80,100,125 Performance reference temperature (80 ℃),95,100,120,145 In generators and other electrical equipment,insulation materials is the most weak link.Insulating materials are especially vulnerable to the effects of <strong><a href="http://fzguohong.en.alibaba.com/">electric motor cooling fan</a></strong> high temperature and accelerated aging and damage.Different heat insulating materials have the difference,using different insulation of electrical equipment for its ability to tolerate high temperature is different.So the general electrical equipment are the work of the highest temperature.People according to the ability of different insulating material resistant to high temperature 7 is defined for the allowable maximum temperature,according to the temperature size are:Y,A,E,B,F,H and C.They allowed working temperature:90,105,120,130,155,180 and above 180 ℃.Therefore,class B insulation of the generator by the <strong><a href="http://dongfeng-motor.en.alibaba.com/">three phase generator</a></strong> insulation of the heat temperature is 130 ℃.Users in generator work should promise not to make generator insulation materials more than the temperature can guarantee the normal work of the generator.Insulation class for class B insulation materials,mainly by mica,asbestos,glass wool by organic adhesive agglutination or dipping.
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