Ultrasound testing of MV/HV equipment

[SA07]

Hi
Does someone has a table showing the acceptable levels of ultrasound when doing this test? Are there any standards for these test e.g. IEC? Thanks

 

[FacEngrPE]

I think you are asking about Partial Discharge testing,

https://en.wikipedia.org/wiki/Partial_discharge[/URL]]Ultrasonic measurement relies on fact that the partial discharge will emit sound waves. The frequency for emissions is "white" noise in nature and therefore produces ultrasonic structure waves through the solid or liquid filled electrical component. Using a structure borne ultrasonic sensor on the exterior of the item under examination, internal partial discharge can be detected and located when the sensor is placed closest to the source.

This presentation may provide the information you are requesting. Introduction to Partial Discharge (Causes, Effects, and Detection)[Link].

 

[SA07]

Thank You FacEngrPE