CONDITION MONITORING OF TRANSFORMER OIL
Transformers has life of ten years and even more if the continuous condition monitoring program is been followed. TSL transformer oil condition monitoring program allow its customers to predict any unwelcome faults transformers.
It is not possible to dismantle transformers for routine checks so transformer oil analysis is carried out which helps to maintain life of transformers. TSL’s transformer oil condition monitoring program includes furan analysis, PCBs, acid number and many more…
| S/N | Test Name |
| Oil Quality Evaluation (Routine Tests)-Minimum tests required to monitor the oil. | |
| 1. | Break Down Voltage, IEC 60156 |
| 2. | Di-Electric Dissipation Factor, IEC 60247 |
| 3. | Water Content, IEC 60247 |
| 4. | Acidity, IEC 62021-1 |
| 5. | Color, ASTM D1500 |
| Complementary Tests-(Additional Tests) Used to obtain further specific information of the oil | |
| 1 | IFT, ASTM D971 |
| 2 | Sediments, IEC 61125 |
| 3 | Sludge, IEC 60422 |
| 4 | Particle Count (ISO Cleanliness), ISO 4406 |
| Special Investigative Test -Tests used mainly to determine the suitability of the oil for the type of equipment | |
| 1 | Oxidation Stability, IEC 61125 |
| 2 | Flash Point PMCC, ASTM D93 |
| 3 | Density, ASTM D1298 |
| 4 | Pour Point, ASTM D97 |
| 5 | Kinematic Viscosity @ 40ºC, ASTM D445 |
| 6 | Corrosive Sulphur, DIN 51353 |
| 7 | Potentially Corrosive Sulphur, IEC 62535 |
| 8 | PCB Content, IEC 61619 |
| 9 | Metal Passivator Determination, IEC 60666 |
| Solid Insulation’s Evaluation | |
| 1 | 2-Furfural and related compounds content, IEC 61198 |
| 2 | Estimation of Degree of Polymerization, TSL-TEC-1 |
| Transformer’s health evaluation | |
| 1 | Dissolved Gas Analysis (DGA), ASTM D3612 |
| Interpretation | |
| 1 | Interpretation of result, IEC 60422 |