Pay attention to the heating and cooling problems of non-polar electrolytic capacitors

The reason for the heating of non-polar electrolytic capacitors is that electrolytic capacitors are widely used in rectifier and filter circuits because of their large capacity and low price . Its useful self-healing properties greatly improve its operational reliability.

      However, the disadvantages of circuit design or human misoperation will cause early failure of aluminum electrolytic capacitors , pressure release equipment operation, electrical insulation damage, short circuit, open circuit and other faults. Generally speaking, these faults can be very large To prevent it to a certain extent, only heat generation is an unavoidable and deeply damaging factor in the use of aluminum electrolytic capacitors. It can also reduce the bearing capacity of the ripple current and drastically shorten the service life of the capacitor; not only that, the drying of the electrolyte can also increase the leakage current of the aluminum electrolytic capacitor, increase the loss, and cause instantaneous over-temperature damage. The factors that cannot be ignored in the use of electrolytic capacitors should be ensured that aluminum electrolytic capacitors should not exceed their rated operating temperature, avoid heat sources as much as possible, and use effective measures for cooling when necessary.