We offer consultancy services for Transformer Oil Testing, It’s methods are a vital part of any maintenance program. An annual DGA is the most crucial test for the liquid lining. Analysis of gases in the oil can specify insulation overheating/ overloading, corona discharge, liquid overheating, or arcing in the transformer. The screen test comprises additional physical, chemical, and electrical tests; this includes power factor, interfacial tension, acidity, colour, and dielectric breakdown. No single test alone can indicate the authentic stature of the liquid. Thus, it is necessary to perform all the tests. Furthermore, a useful test is performed by transformer oil labs that include those for water content, PCBs furanic compounds, and metals-in-oil.
Transformer oil testing is a method of measuring breakdown voltage and various chemical and physical properties of the transformer oil, either in the laboratory or by using any sort of portable test equipment on site.
Sr .No. | TESTS | IEC | ASTM | IS |
---|---|---|---|---|
1 | Colour & Appearance | ISO 2049 | D-1524 | IS 335 |
2 | Inter Facial Tension | ISO 6295 | D-971 | IS 6104 |
3 | Viscosity | ISO 3104 | D-445 | IS 1448 [P-25] |
4 | Flash Point | IEC 2719 | D-92 | IS 1448 |
5 | Pour Point | ISO 3016 | D-97 | IS 1448 |
6 | Water Content | IEC 60814 | D-1533 B | IS 13567 |
7 | Acidity | IEC 62021 | D-974 | IS 1448 [P-2] |
8 | Dielectric strength | IEC 60156 | D-877 | IS 6792 |
9 | Specific Resistance | IEC 60247 | D-924 | IS 6103 |
10 | Dielectric Dissipation Factor | IEC 60247 | D-924 | IS 6262 |
11 | Dissolved gas analysis | NA | D-3612-A | IS 9434 |
12 | Furan analysis | IEC 61198 | D-5837 | ---- |