Method for judging the three leads of a ceiling fan motor - News - Global IC Trade Starts Here.

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When measuring with a multimeter, the resistance between the two is measured as the sum of the resistances measured between the two and the third, and the third must be the common lead. The greater resistance between one of the two and the third is generally the secondary winding lead, and the other is the lead of the main winding. The above method can also be used when measuring other single-phase motors. The motor is usually three wires: the live wire is connected to the main coil of the motor; the live wire is connected to the phase shift capacitor (the other end of the capacitor is connected to the secondary coil); the neutral line is connected to the common end of the primary and secondary coils. . Electric fan motors use induction motors that require a capacitor to phase shift to create a rotating magnetic field. The current in the primary and secondary coils can also be understood as "two-phase" alternating current - which is generated by the "phase split" of single-phase alternating current; the electric fan motors are all speed-regulating motors, generally five.

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