Capabilities · engine capability tree

The simulation and sizing capabilities on this site come from the power-system engine used internally byQDTB, the engine that QDTB's engineering department uses as a simulation tool to guide the production of electrical equipment. Limited by the hardware capacity and computing cost of a web server, this site exposes only part of the engine's capabilities. The table below groups every module and study switch into five engineering categories, and each sub-category links straight into the page where you can use it — this is a “what it can do” overview, not a marketing page. Capability is stated in three layers, none of them hidden: (1) steady-state calculation is the mainstay — load flow, short circuit, voltage drop, sizing and withstand checks; (2) on top of it the engine solves device- and event-level transients and quasi-steady sequences — transformer magnetisation inrush, series-reactor fault di/dt with core saturation, short-circuit DC-component decay, bus transfer, auto-reclosing, PV low-voltage ride-through and converter average models; (3) what is deliberately not done is listed as well — no system-wide EMT phase-by-phase simulation (PSCAD/EMTP class), no full electromechanical generator swing / rotor-angle stability process, and no numeric waveform simulation of switching or lightning overvoltages.