Technical articles
Practical writing on transformer selection, oil condition, losses and maintenance. Written for the engineer doing the specifying, not for a search engine.
Filter by topic, or read them in order — they are written to stand alone.
Insulating oil is part of the insulation system, not just a coolant. Here is how it degrades, how to test it, and when filtration is the right answer.
The dividing line is duty, not size. How load profile, loss economics and impedance decide which type a job actually needs.
A practical monthly, annual and five-yearly schedule for plant transformers — what to check, what to record, and which readings actually predict failure.
No-load loss runs 8,760 hours a year whether you use the transformer or not. How the two loss types work, and why load profile decides which one to buy against.
A BIS licence and an ISO certificate say different things about a supplier. What each one actually covers, how to verify them, and what neither guarantees.
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