Common failure modes and failure mechanisms of capacitors (1)

1.Breakdown short circuit; fatal failure.

2. Open circuit; fatal failure-change of electrical parameters (including excess capacitance, increased tangent of loss angle, decreased insulation performance or rising leakage current, etc.) partial function failure.

3. Leakage; partial functional failure.

4. Lead corrosion or fracture; fatal failure.

5. Insulator rupture; fatal failure.

6. Fly-arc on the insulator surface; partial failure of function.