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Spacecraft Power Bus 2D: Fault Protection & Load Shedding

Interactive 2D schematic of a spacecraft power distribution unit: regulate the bus, inject a short-circuit fault and watch the current-limiting breaker isolate it, and see priority-based load shedding protect critical subsystems when the bus sags.

Space & Astronomy2DAdvanced60 FPS📱 Mobile-adapted⇄ 3D version

Every spacecraft power system lives or dies by two things: how well its Power Distribution Unit regulates a shared DC bus fed by solar arrays and a battery, and how well its current-limiting breakers and load-shedding logic protect that bus when something goes wrong. This 2D schematic renders a power bus with five subsystem loads — attitude control, comms, thermal, payload and propulsion — each on its own fused spoke around a central hub, next to battery/solar gauges and a live bus-voltage strip chart. Slide the orbit into eclipse and watch the battery take over the load with a realistic internal-resistance voltage droop, inject a short-circuit fault on any subsystem and see whether its breaker isolates it before the bus collapses, and toggle automatic priority load-shedding to watch the PDU sacrifice non-critical loads first to keep attitude control and communications alive.

⚙ Under the hood

A 2D schematic of a spacecraft power distribution unit: regulate the DC bus fed by a solar array and battery, inject a short-circuit fault on any subsystem and watch its current-limiting breaker isolate it, and toggle priority-based load shedding to see the PDU sacrifice non-critical loads to protect attitude control and comms when the bus sags. Renders as a hub-and-spoke power diagram with battery/solar gauges and a live bus-voltage strip chart — pan and zoom to explore.

spacecraft powerpower distribution unitcircuit breakerload sheddingbus voltagefault protection

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install