What is a power capacitor, its basic structure, performance characteristics, working principles, applications, causes of damage, operating procedures, and market prospects 3

5、 Reason for damage:

Power capacitors are devices used to store electrical energy and improve power quality, commonly found in power systems. However, due to various reasons, power capacitors may be damaged. The following are several common causes of damage to power capacitors:diode

1. Voltage too high: When the voltage borne by a capacitor exceeds its rated voltage, it may cause damage to the capacitor. This may be due to sudden increases in grid voltage, capacitor failures, or improper maintenance.

2. Excessive current: When the current carried by a capacitor exceeds its rated current, it may cause dielectric breakdown inside the capacitor, resulting in damage to the capacitor. This may be caused by power grid faults, internal faults in capacitors, or incorrect connections between capacitors and other devices.diode

3. Internal faults of capacitors: Damage to internal components of capacitors, poor contact, aging or rupture of dielectrics, and other faults may cause damage to capacitors. These faults may be caused by manufacturing quality issues, expiration of service life, or improper operation.diode

4. Excessive temperature: Capacitors generate heat during operation. If effective heat dissipation is not achieved or the ambient temperature is too high, it may cause an increase in the internal temperature of the capacitor. When the temperature exceeds the rated temperature of the capacitor, it may cause damage to the capacitor.diode

5. Sudden events such as lightning strikes, power grid failures, or other external disturbances may cause damage to capacitors.diode