 ##  [Partial Discharge](/partial-discharge) 

  ##  [Partial Discharge](https://engineering.quantumdictionary.io/partial-discharge-0) 

  

 [![Engineering & Applied Technologies Dictionary](/sites/default/files/styles/large/public/2026-01/Engineering%20%26%20Applied%20Technologies.png.webp?itok=_IKO7_-n)](/topic-specific-dictionaries/engineering-applied-technologies)



**Engineering &amp; Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A localized, transient electrical discharge that partially bridges the insulation between conductors or between a conductor and grounded parts within solid, liquid, or gaseous dielectric materials without completely shorting the electrodes; each event transfers a small charge and can progressively degrade the dielectric, eventually causing full breakdown.