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Interactive 3D electrical power system journey from 21 kV generator → 400 kV GSU → 220 kV autotransformer → 220/132 kV step-down → 132/33 kV substations → 415 V consumer loads with live three-phase current & loss calculations, OLTC regulation, and fault simulations.
Launch 3D Lab →Rating, voltages, vector group and impedance in; a first-cut design out in seconds — core, turns, conductors, losses, impedance, thermal and weights. Includes a 2D axisymmetric leakage-field solve for axial force per winding section.
Open →Routine test results into a formatted, buyer-ready PDF. The fastest practical win for a works test bay — no new hardware.
Open →Ten models you can rotate, section and explode: power transformer, GSU, autotransformer, condenser bushing, OLTC, core topologies, winding types and core-and-coil assembly.
Open →Pick a country and see the voltage levels, frequency, standards regime and typical practice that apply there.
Open →IEC 60076 against IEEE C57 and the regional regimes, section by section.
Open →Vendor-neutral: the FEM, transient and network tools transformer engineers actually use, grouped by the job they do. Listed independently for reference only.
Open →Reference articles on design, materials, testing and procurement.
Open →The design calculator stays usable on screen. Each browser can download one watermarked preview PDF; further PDF exports need a paid plan. The 3D construction explorer and Grid Lab are free. The standards map, software directory and knowledge library are free to read. Paid plans unlock the design course, the Design Engineer Track, and the deeper academy 3D tools. See what each plan includes →