About the internal structure of ac fan!
We have always said that the internal structure of ac fan (single phase) it has two coil group, one of which is a winding, a winding is run, the two winding in series, thus formed the three points, series connection point for the public side, the startup winding terminal end to run run to start the end winding end, ac fan will also need a startup capacitor, usually between the capacity of 1-2 uf, pressure is usually 250 v, it refers to the normal use of the mains ac motor, this kind of capacitor is polyester capacitor, no is negative, there are two joints, a head start at the end of winding, a running head by the end of the winding, the formation of the triangle, power supply (no need to distinguish between wire zero line) a joint running winding ends (i.e., and capacitor also meet together a head), another public side, grounding line took the motor shell;Usually single-phase ac motor can also be used as a running start winding winding, if switch run to start the windings (that is the power of a pick up to the public, by running the change from start the end, it is used as a running start winding winding), the machine can produce inversion, this also is to implement and the only way to change the single phase ac motor to!
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