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The relationship between the insulation resistance and temperature of axial film capacitors|Focus on middle and high-end brand capacitor manufacturers

by:Shenmao     2021-04-13
As we said before, the relationship between the insulation resistance of the axial film capacitor and the test time is that the charging current of the axial film capacitor decreases with time. After a period of time, this value will stabilize. This stability The next value is the leakage current (IL). However, the relationship between the insulation resistance of the capacitor and the leakage current is not linear. So what are the factors related to the insulation resistance of axial film capacitors? Today we talk about the relationship between the insulation resistance of the capacitor and the temperature. Studies have shown that the relationship between the insulation resistance and temperature of the axial film capacitor is basically the same as the relationship between the volume resistance and the temperature. The temperature of the insulation resistance of the test capacitor is generally between 15 and 25 ℃. Insulation resistance will decrease with increasing temperature. For more details, please call the toll-free hotline: 400-6299-138. However, we have not said before what is called volume resistance. In order not to leave any doubts, here is a brief explanation of what is called volume resistance. The so-called volume resistance of axial film capacitors refers to the resistance of one cubic centimeter of dielectric to leakage current, and its unit is ohm·cm. The resistance value of an axial film capacitor is an important parameter indicating the electrical properties of the dielectric or insulating material used. The larger the volume resistance of the axial film capacitor, the better the insulation performance of the dielectric used in the capacitor; that is, the greater the volume resistance of the axial film capacitor, the greater the insulation resistance.
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