Summary
During factory acceptance testing of large power transformers, occasionally dielectric failures may occur. To repair the failure, its location must be found. In recent years the locations of breakdown, due to Lightning Impulse, LI, and Switching Impulse, SI, have been successfully found using acoustic emission sensors. This paper discusses 2 different cases, one LI and one
Read more Read lessSI breakdown.
The two FAT cases in this document, show that the used fiber optic acoustic emission sensors can be used to directly detect the fault location of a breakdown during transient testing, thereby significantly reducing test and investigation time needed to find such location.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | A2_10272_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Netherlands, The |
| Study committees | |
| File size | 1 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
VOETEN Stefan - Royal SMIT Transformers; HASHEMI-DEZAKI Hamed - Optics11; ZADEH Aydin - Optics11
Keywords
Acoustic Emission, Applied Voltage, Dielectric Testing, Electromagnetic Interference Immune Sensor, Factory Acceptance Testing, Fiber Optic Acoustic Emission Sensing Technology, Lightning Impulse, Localization, Partial Discharge, Switching Impulse
