Wye Delta starter simulation with automatic transition. Just below the 120V power source on the far left there is push button, that is the start signal. Just below that is another push button, that is stop. If you watch the lights used to simulate motor windings they will "explode" while running in delta but run just fine during start up while running in Wye. Transition is controlled via an inductor and will occur about 10 seconds after start up while simulating at 5 ms/s. "Contactors" and "Auxiliary contacts" are just relays wired in parallel. There are indicator lights between each contactor and its associated auxiliary, and on the resistors tied into the T contactor. From left to right the contactors are 1M, 2M, T and S.
