Why do motors need capacitance when they start?
Only for single-phase AC motors, the rotating magnetic field is formed by the phase-shifting of the capacitor because a single winding can not form a rotating magnetic fieldA three-phase magnetic field is not needed, so a rotating magnetic field can be synthesizedHenryzheng2 | published on 2013-02-17 17:21
A positive reverse circuit. The switch hits the top. "Yes" is to string the capacitor to the coil below. The switch "hit" below is the series of capacitors connected to the coil above. There is no need to consider the capacitor charging problem.
Only single-phase AC motors use capacitor, DC motor and three-phase AC motor are not needed.The two phase motor coil can not generate a rotating magnetic field, which must be in a coil on series capacitor, the current current branch ahead of another coil, in order to form a rotating magnetic field between the two coils, the rotation of the rotor.
