Technical articles, in-depth guides, the daily market briefing, standards and utility portals — the transformer industry's reference shelf.
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Practical, evergreen reads for buyers, engineers and suppliers.
The CRGO, copper, labour and demand squeeze behind 36–48-month deliveries, and the moves buyers use to protect projects.
Read the guide → MaterialsNo-load loss, cost, weight, noise and supply compared — and when each core material is the right call.
Read the guide → Demand DriverWhy every electrolyser FID is a transformer order — rectifier duty, grid connections and a live tracker of the world's major green-H₂ projects.
Read the guide → DailyTenders, project awards, supplier moves and material prices worldwide — refreshed twice a day and ordered to your region.
Open Daily Intel →Deep dives from the free engineering course. See all 26 chapters →
Core area, flux density, grades and stacking — setting iron weight and no-load loss.
Conductor sizing, current density, layer/disc/helical arrangements and the window-area check.
Turn, layer and major insulation; pressboard and paper; clearances and oil as a dielectric.
Temperature rise, radiators and fans, ONAN/ONAF classes and hot-spot control.
Routine, type and special tests that verify a design against IEC 60076.
Differential, REF, Buchholz and pressure relief — keeping the unit and grid safe.
Our worldwide grid census lists transmission operators and utilities country by country, with voltages, frequencies and official links.
Browse World Grids →Power transformers — the core standard family utilities specify to.
Insulated bushings for AC voltages above 1000 V.
Tap-changers — on-load tap-changer requirements & application.
Mineral insulating oils for transformers and switchgear.
Pressboard and presspaper for electrical purposes.
The North American power & distribution transformer standard family.