摘要
首先介绍了电器产品的发热热源和热稳定状态下电器产品热源的三种散热方式,然后对电器产品在50Hz和60Hz电源频率下产生趋肤效应的结果进行了对比分析,得出电器产品内部不会因电源工频变化而产生由趋肤效应引起的试样表面与内部温差的结论。最后采用传统的牛顿公式对处于50Hz和60Hz电源频率下电器产品的温升进行理论分析,得出了电源频率变化对电器温升具有一定影响的结论。
This paper introduces three kinds of heat source heating appliances heat source and heat stable state electri- cal products under, then made a comparative analysis of the electrical products causes the skin effect results in 50Hz and 60Hz power frequency ,internal not electrical products generated surface caused by the skin effect and internal tempera- ture difference due to power supply working frequency change and conclusion. Finally, using the Newton formula tradi- tional in temperature electrical products 50Hz and 60Hz power frequency rises with theoretical analysis, the power fre- quency variation on electrical appliance has certain effect.
出处
《电气开关》
2015年第3期106-108,共3页
Electric Switchgear
关键词
热稳定
趋肤效应
交流接触器
温升
thermal stability
skin effect
AC contactor
temperature-rise
