Cause of explosion of low voltage compensation capacitor

What causes a capacitor to explode?

7. Excessive temperature causes capacitor explosion If the temperature of the capacitor is too high, the electrolyte inside it rapidly vaporizes and expands, breaking through the restraint of the shell and exploding.

What happens if an electrolytic capacitor explodes?

Comparing its predecessors, the electrolytic capacitor is the kind that is most likely to result in a spectacle when it explodes. Other capacitors will burn, crack, pop, or smoke instead of exploding. The oxide layer deteriorates when an electrolytic capacitor fails. The electrolyte is subjected to heavy current flow as a result.

What causes a capacitor to fail?

The cause for a capacitor's failure was not indicated in the investigation. Dust and the salt atmosphere could have contributed to the failure.

What causes a capacitor to boil?

The general causes are as follows: ①The voltage is too high, causing the capacitor to break down, and the current through the capacitor increases rapidly in an instant; ②The ambient temperature is too high and exceeds the allowable working temperature of the capacitor, causing the electrolyte to boil.

Are capacitor explosions dangerous?

Yes, capacitor explosions have the potential to endanger lives and damage property. An explosion can cause physical injury and equipment damage due to the release of energy and debris. When working with capacitors, it’s crucial to adhere to safety procedures and take the proper precautions.

What causes a capacitor to leak oil?

There was evidence of oil leakage (arrow) from the capacitor, allowing air to fill the void inside. As the capacitor plates become exposed to the air, the dielectric strength of the plate gap decreases, causing a sudden high energy electrical discharge between plates.