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Basic knowledge of AC asynchronous motor
source：未知 time：2021-12-10 11:18nbsp; click：
Basic knowledge of AC asynchronous motor
l What is an AC induction motor? AC asynchronous motor is leading the motor AC voltage operation, widely used in all kinds of household appliances such as electric fans, refrigerators, washing machines, hair dryer, vacuum cleaners and other, and all kinds of electric tools and small electrical and mechanical equipment in.
l AC asynchronous motor is divided into induction motor and AC commutator motor of the two, and induction motor is divided for single-phase asynchronous motor, AC / DC dual-purpose motor and repulsion motor. The rotational speed of the motor (rotor speed) is less than that of the rotating magnetic field. Called asynchronous motor. It is basically the same as the induction motor. S= (ns-n) /ns, s slip, NS N magnetic speed, rotor speed.
l Basic principle:
l 1, when the three-phase asynchronous motor is connected with a three-phase AC power supply, three-phase stator winding through the symmetry of the three-phase current of three-phase magnetic motive force (the stator rotating magnetic motive force (MMF) and produce a rotating magnetic field.
l 2. The rotating magnetic field and the rotor conductor have relative cutting motion. According to the principle of electromagnetic induction, the rotor conductor has the induction electromotive force and the induced current.
l 3, according to the law of electromagnetic force, carrying the rotor conductor in the magnetic field by the electromagnetic force, the electromagnetic torque, drive the rotor rotation, when the motor shaft with mechanical load, then the output of mechanical energy.
l Induction motor is a kind of AC motor, the speed of load is not constant and the ratio of the frequency of the power grid is not constant. And also with the corresponding changes in the size of the load. The greater the load torque, the lower the speed of the rotor. Asynchronous motor induction motor is the most widely used, in not cause misunderstanding or confusion, generally known as the induction motor for asynchronous motor, but asynchronous motor also includes doubly fed asynchronous motor and AC motor commutator.
l What is an AC induction motor? AC asynchronous motor is leading the motor AC voltage operation, widely used in all kinds of household appliances such as electric fans, refrigerators, washing machines, hair dryer, vacuum cleaners and other, and all kinds of electric tools and small electrical and mechanical equipment in.
l AC asynchronous motor is divided into induction motor and AC commutator motor of the two, and induction motor is divided for single-phase asynchronous motor, AC / DC dual-purpose motor and repulsion motor. The rotational speed of the motor (rotor speed) is less than that of the rotating magnetic field. Called asynchronous motor. It is basically the same as the induction motor. S= (ns-n) /ns, s slip, NS N magnetic speed, rotor speed.
l Basic principle:
l 1, when the three-phase asynchronous motor is connected with a three-phase AC power supply, three-phase stator winding through the symmetry of the three-phase current of three-phase magnetic motive force (the stator rotating magnetic motive force (MMF) and produce a rotating magnetic field.
l 2. The rotating magnetic field and the rotor conductor have relative cutting motion. According to the principle of electromagnetic induction, the rotor conductor has the induction electromotive force and the induced current.
l 3, according to the law of electromagnetic force, carrying the rotor conductor in the magnetic field by the electromagnetic force, the electromagnetic torque, drive the rotor rotation, when the motor shaft with mechanical load, then the output of mechanical energy.
l Induction motor is a kind of AC motor, the speed of load is not constant and the ratio of the frequency of the power grid is not constant. And also with the corresponding changes in the size of the load. The greater the load torque, the lower the speed of the rotor. Asynchronous motor induction motor is the most widely used, in not cause misunderstanding or confusion, generally known as the induction motor for asynchronous motor, but asynchronous motor also includes doubly fed asynchronous motor and AC motor commutator.
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