Views: 0 Author: Site Editor Publish Time: 2019-10-24 Origin: Site
Self-healing is an important index to measure the compressive capacity of capacitors. When the operating voltage is higher than the rating, the short circuit will be broken down because of the problem of the thin film medium in a certain position. But the arc will cause the metallized layer at the breakdown point to melt and vaporize in a twinkling of an eye. In this period of time, the length of the discharge area continues to expand and become larger.
After the discharge, some of the vaporized media will be condensed together because of the sudden drop of the temperature in the discharge zone, at which time an insulating layer will quietly appear around the discharge electrode, dividing the breakdown area away, so that the normal operation of the two poles of the capacitor is not affected by its insulation. Therefore, the reliability of the work to a higher level.
It is the performance of thin film capacitors that makes the surge voltage resistance of thin film capacitors reach more than 1.5 times of the rated voltage that ordinary capacitors can not reach. At the same time, due to the use of metallized split film technology in the plastic film medium of thin film capacitors, there will be no short circuit breakdown in theory, which makes the thin film capacitors strengthen their voltage resistance, and in theory, please go up to a high floor.
