In the operation of capacitors, if there is an occasional "crackling" discharge sound inside the capacitor, this is due to the sound produced when the dielectric breaks down and self-heals after the capacitor is impacted by the power grid. This situation will not affect the normal use of the cap

Capacitor housing is sealed. Generally internal media is not leakage. However, it is sometimes found that after the capacitor has been running for a period of time, a small amount of oil stains appear around the outlet terminal on the cover of the capacitor, which is due to the fact that the rem

With the increase of operation time, the capacitance of low-voltage capacitor will decrease, and the average attenuation rate of capacitance in five years is less than 1 %/ year. Since the capacitance is directly proportional to the working current of the capacitor, during daily inspection, attentio

When the fast fuse core of the capacitor is fused, the core shall not be replaced until the cause is determined and the capacitor shall be forced to be put again. The power supply should be cut off and discharged first, and then external checks should be carried out: whether there are flashover mark

There are anti-riot isolating devices inside the capacitors. When the shell expands sharply due to the fault of the capacitor, the isolating device acts, thus cutting off the external power supply of the capacitor to avoid explosion. In extreme bad conditions, if the riot isolation device does not a