Circuit breakers: types and ratings
Switchgear and Protection · 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
Substation: SF6 breaker 25kA interrupts fault (arc quenched). Vacuum (medium). Ratings: voltage/current/breaking. Grid switch.