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What is the Effect of Partial Discharge on Transformer Insulation?

 

What is the Effect of Partial Discharge on Transformer Insulation?
Partial discharge (PD) refers to the discharge phenomenon that occurs in some part of the insulating medium inside the product or the conductor surface covered by the insulation under the action of electric field.
Partial discharge will cause aging breakdown, when the discharge intensity reaches a certain level, the discharge energy is enough to smoke the surrounding insulation material, will eventually lead to the occurrence of penetration breakdown in this place. Long-term partial discharge gradually enlarges the aging damage of insulation, and even makes the whole insulation breakdown or surface flashover.

What is the Effect of Partial Discharge on Transformer Insulation?

Partial discharge (PD) refers to the discharge phenomenon that occurs in some part of the insulating medium inside the product or the conductor surface covered by the insulation under the action of electric field.

Partial discharge will cause aging breakdown, when the discharge intensity reaches a certain level, the discharge energy is enough to smoke the surrounding insulation material, will eventually lead to the occurrence of penetration breakdown in this place. Long-term partial discharge gradually enlarges the aging damage of insulation, and even makes the whole insulation breakdown or surface flashover.