Power transformers are the single largest capital asset in substations. They are critical in the transmission of power to homes and businesses.
Technical complexities of transformers combined with high capital cost and long life expectancy pose unique decision-making challenges to asset managers.
Transformer oil analysis is essential in determining the internal health of a transformer and assessing the likelihood of failure. ALS provides a wide range of analytical services to monitor transformer operating condition and fluid health.
Transformer oil acts as an electrical insulating media and helps protect the components from oxidation and heat stress due to electrical loading. If the oil becomes contaminated or begins to oxidize and breakdown, the performance is compromised, and the transformer can short out or worse. ALS performs several tests that allow for effective condition monitoring.
- Acid Number D974/ D664
- Colour D1500
- Dielectric Breakdown Voltage (Dielectric Strength) D1816
- Dissipation Factor (Power Factor) D924
- Dissolved Gas Analysis (DGA) D3612
- Furan Content D5837
- Oxidation Inhibitor Content D2668
- Interfacial Tension D971
- PCBs D4059
- Resistivity D1169
- Visual D1524
- Water Content D1533
Care should be taken when sampling transformer fluid and should be performed by a trained operator. Sampling for Dissolved Gas Analysis (DGA) requires a special sampling syringe, which ALS can help provide.
Our laboratories in Australia and North America maintain ISO and/or NATA accreditation for quality assurance and expertise. ALS can be a partner to help maximize your equipment reliability and performance.