When you need it
- Before energising a transformer
- During periodic maintenance
- After oil replacement or treatment
- When a transformer overheats or gasses
- After a long shutdown
Technical details
- Method
- GOST 6581-75
- Measured
- breakdown voltage (kV)
- Object
- transformer insulating oil
- Result
- official test report
- Accreditation
- AZS ISO/IEC 17025:2020, AZS ISO/IEC 17020:2021
How we do it
Transformer oil testing
01
Sample
An oil sample is taken from the transformer correctly.
02
Test
Breakdown voltage is measured on a laboratory test set.
03
Evaluation
The result is compared with the norm to assess the oil.
04
Report
Results and recommendations go into the report.
FAQ
FAQ
Why test transformer oil?
When oil loses its insulating properties, the risk of internal breakdown and transformer failure rises.
How often should it be tested?
According to the maintenance schedule and transformer condition; our engineer will advise.
Do you take the sample?
Yes, we can take the sample on site.
How is the result issued?
As a signed laboratory report.

Request a measurement
Tell us about your site: our engineer will agree scope and price.
