##  [Potential Transformer](/potential-transformer) 

  ##  [Potential Transformer](https://engineering.quantumdictionary.io/potential-transformer-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 & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

An instrument transformer that provides a scaled secondary voltage proportional to a high primary voltage, used to feed measurement instruments and protective relays at safe, standardized voltage levels while providing electrical isolation from the high-voltage system.