Geographical structure of split-phase starting single-phase induction motor
Source: InternetPublisher:笑流年 Keywords: induction motor coil switch Updated: 2020/02/10
Geographical structure of split-phase starting single-phase induction motor
In order to start the single-phase induction motor quickly, there are two sets of windings in the motor winding, namely the main coil and the starting coil. There is a centrifugal switch in the starting
coil power supply circuit , and its circuit structure is as shown in the figure. When starting, the switch is closed and AC voltage of 220 V is applied to the two-phase windings respectively
, because the phases of the two-phase coils are 90°. , to start the motor. When it reaches a certain speed after starting, the centrifugal switch is disconnected by the centrifugal force
, and the starting coil stops working.
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