Frequency conversion speed regulation control device for high altitude tourist car
A technology of variable frequency speed regulation and control devices, which is applied in the direction of control drive, control system, AC motor control, etc., and can solve the problem of uncontrollable speed
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[0008] Example: as attached figure 1 As shown, the air switch 1 controls the on and off of the power supply. The frequency converter 2 is connected behind the air switch 1, and the power is sent to the motor 4 all the way after the frequency conversion by the frequency converter 2, and the speed control of the motor is carried out. In order to protect the motor, a thermal relay is connected in series between the frequency converter 2 and the motor 4 3; The other path is sent to the brake 5 for braking control of the motor 4.
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