Three-phase circuits: star-delta
Circuit Theory · Engineering
DC circuit
Interactive 3DElectrons drift around the loop — raise the voltage and watch the current obey Ohm's law.
Controls
Drag the sliders or type a value — the simulation updates live.
V
1V12V
Study notes
Motor 400V: star 230V/phase; delta 400V/phase (more power). P=sqrt3*400*10*0.8=5.5kW. 3-phase: constant power, efficient. Industry standard.