三相异步电动机热保护元件的探究

Research on the Protection Element of Three-phase Asynchronous Motor

三相异步电动机在实际的应用中经常会出现过载的问题,所以对三相异步电机的热保护就显得格外重要。现在市面上热保护元件众多,本文从热保护元件的原理入手,经过对不同热保护元件的工作特性及优缺点进行分析,并对它们进行分类对比,从而更有利于读者进行热保护元件的选用。

The over temperature protection of the three-phase asynchronous motor is very important,because the motor often with the problem of overload in practical applications.Now there are so many overheat protection elements on the market,this article with the beginning of the principle of protection element,through analyzing and contrasting the work characteristics of different thermal protection elements and the advantages and disadvantages of them,the readers can select the protection element easier and properly.