The transformer oil sampling procedure is where every oil result is won or lost. Open a valve, fill a bottle, and you hand the lab a snapshot of a sealed tank you’ll probably never open. Get the sampling wrong and it doesn’t matter how good the lab is — no analysis can rescue a bad sample. Everything below… Read More: Transformer Oil Sampling Procedure (IEC 60475) »
Transformer oil testing is the cheapest diagnostic port you have. You open a valve, fill a bottle, and get a readout of what is happening inside a sealed tank you will probably never open. But a number on a lab report means nothing on its own. 22 mg/kg of water is fine in a 33 kV distribution unit… Read More: Transformer Oil Testing: Tests, Limits and Actions »
Most oil tests tell you something has already gone wrong. Interfacial tension tells you it’s about to. It’s the smoke detector of oil analysis — a small, sensitive force measurement that drops at the first whiff of oxidation, long before acid climbs or sludge ever appears. The idea is simple. Pour clean oil onto water and the two… Read More: Interfacial Tension (IFT): The Early Warning for Oil Oxidation »