3 ms·
It's useful to imagine this way: When a motor is forced to spin by some external influence, drawing more current out of it on the other end means it has to spin
by kn100 6y ago
It's useful to imagine this way: When a motor is forced to spin by some external influence, drawing more current out of it on the other end means it has to spin with more torque in order to maintain the same voltage. Here, the generators are connected together to supply power in unison. They must all be in phase with each-other otherwise the out of phase generator will find itself fighting with the other generators, and as beautifully demonstrated here will very violently lose the fight. You could describe this as a very cruel demonstration of destructive interference!
- a1369209993 6y agoPut another way: every electric motor is also a generator and vice-versa. If you induce the motor to absorb energy from the power supply rather than emit it, that energy has to go somewhere. As usual, when not specified, "somewhere" tends to mean heat, sound, and inelastic deformation of anything in relatively close proximity to the excess energy.