Every week, a real-world transformer fault scenario. Study the oil sample, watch the point land on the Duval triangle, and make the diagnosis. Earn XP. Climb from Apprentice Winder to Duval Master.
XP is saved on this device. Weekly cases pay 250 XP on a first-try diagnosis; archive practice pays 100. Global leaderboard coming soon.
The Duval cases are round one. The bench is getting bigger.
100 MVA, IEC 60076, capitalized losses at real rates. Design it, price it, beat three sealed rival bids. A new utility tender every Monday.
Dyn11 or YNd1? Phase-shift and parallel-operation problems straight from the substation.
Sympathetic inrush, percent-impedance trade-offs, fault-level math — quick-fire weekly drills.
The twice-daily intel briefing keeps you current on the market side, too.
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