Power system design & simulation

Draw the single-line diagram. Run the real engine. Hand over the deliverables.

ElecSimHub is a browser workbench for LV/MV power-system design. One canvas, one real calculation engine, one set of deliverables — no spreadsheets, no piecemeal tools.

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What this site is

ElecSimHub is a simulation and calculation tool for power systems, developed under QDTB (Shandong Yaqing Electric Power Technology). QDTB manufactures and supplies the equipment; ElecSimHub is where the design gets calculated, checked and documented.

What it does

Load flow — balanced, three-phase unbalanced, open-phase and voltage stability, on the same engine that produces the report.
Short circuit — IEC 60909 and GB, with source contribution, peak withstand and cable-thermal checks.
Protection — coordination across the chain, grading margins and setting sheets.
Power quality — harmonics (GB/T and IEEE), resonance, voltage unbalance and flicker.
Safety — arc flash boundary and incident energy, N-1 transfer, earthing and insulation coordination.
Equipment — transformer loss and temperature rise, cable four-fold verification, generator and storage sizing, BESS and EV charging studies.
Deliverables — calculation report, single-line diagram, drawing set, BOM, quotation, grid-code checklist and more, exported as files you can send to a customer.

ElecSimHub canvas — single-line diagram with automatic electrical wiring — Canvas: draw the topology, auto-wire by electrical rules, keep bays and cables straight.

ElecSimHub checks — study results grouped by fixability — Checks: every study computed on the real engine, grouped by what you can fix — automatically, with your data, or by changing the design.

ElecSimHub deliverables — select chapters and export documents — Deliverables: pick the chapters, export the report and drawings, hand them over.

Ready to calculate your scheme?

The workbench runs in your browser. Draw a scheme or load an example, run the studies, export the documents.

Open V3 workbench →