Capacitor damage type and law - Solutions - Huaqiang Electronic Network

SMD aluminum electrolytic capacitor

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

Photocoupler

There are many types of compensation capacitor damage, which can be summarized as follows:

(1) Initial failure. This refers to the failure of power transmission or power transmission soon, mostly due to poor manufacturing process or serious defects.

(2) Occasional failure. This refers to damage caused by poor ventilation during operation, overheating, external force damage, operating overvoltage or lightning.

(3) Abrasion failure. This is the damage caused by the decrease in the electrical strength of the insulation due to insulation aging and internal detachment after the capacitor has been in operation for many years.

The general rule of capacitor damage is:

(1) High voltage capacitors are more than low voltage capacitors.

(2) Summer is more than other seasons.

(3) Installed outdoors more than indoors.

(4) The operation is more damaged under frequent overvoltage and overload conditions.

(5) Switching operations frequently cause more damage.

(6) Poor management and maintenance, poor ventilation, and more damage.