The three wires connected to the asynchronous three phase motor are connected to the stator or the r

The three wires connected to the asynchronous three-phase motor are connected to the stator. The three-phase power supply is connected to the stator of the motor through the control and protection circuit, and the rotor rotates through the electromagnetic induction current.

The bottom left side of the figure is the motor, and the QF KM FR above is the control protection device L1 L2 L3 is the three-phase power supply. km1 km2 controls the forward and reverse rotation of the motor. On the right is the secondary circuit.

Asynchronous three-phase motor generally refers to three-phase asynchronous motor, which is a type of motor that is powered by simultaneous access to 380V three-phase AC power supply (phase difference of 120 degrees), because the rotor and stator of the three-phase asynchronous motor rotate in the same direction and at different speeds, and there is a slip rate, so it is called a three-phase asynchronous motor.

The rotor of the asynchronous motor does not have a coil, only the stator has a three-phase winding, and the wiring is connected to the stator.

The three-phase winding of the motor is completely connected to the end cover, there are six heads in the end cover, the three heads below are connected together, and the three heads above are connected with three wires respectively; The upper and lower heads are connected vertically, and the three lines are drawn out separately is a triangular connection.

Generally, the three-phase wire connected to the asynchronous three-phase motor is connected to the stator.

Generally, it is connected to the stator, because the stator current is the current (AC) at the outlet of our power generation, and the rotor current is generally the excitation current (the input is generally DC), which plays the role of establishing the magnetic field. As for the wiring, the three-phase winding of the motor is completely connected to the end cover, there are six heads in the end cover, the three heads below are connected together, and the three heads above are connected to the star connection of three wires respectively; The upper and lower heads are connected vertically, and the three lines are drawn out separately is a triangular connection.

Carbon brushes are required to connect to the stator.

The three terminals of the motor (whether it is a star or a triangle) are connected through their respective windings, its DC resistance is not large, as long as any one of them is not connected, it can not work, of course, there are some high-frequency vibrations on the construction site There is a rotation phenomenon, but they are all reversed from the original direction of rotation, and this is also a lack of phase operation, and soon the motor will burn.

A power supply composed of three alternating currents with the same frequency, equal amplitude, and 120 degrees of electrical angle in phase is called three-phase AC power supply; The voltage between phases is called the line voltage.

The three binding posts of the motor junction box are connected to the three-phase power supply and the direction of rotation is improper, and any two of the three power cords can be reversed, and the direction of rotation of the motor can be changed.

Dear, hello, I am glad to answer for you the wiring of the winding rotor three-phase asynchronous motor, and the connection method of the three-phase winding of the stator of the asynchronous motor is mostly in series. The multipole in a phase can be divided into two groups of parallel connections, but the series and parallel connection methods depend on the size of the wire size used. , and the star connection and triangle connection also depend on the size of the wire diameter, the general high-power motor with the triangle connection and star start triangle work.

Star connection, connected into a triangle type is very little winding three-phase asynchronous motor rotor winding only in the case of star shape, in order to ensure normal work, I hope it will help you.

Summary. Hello, no, the magnetic field of the three-phase asynchronous motor is generated by the rotor, and the rotor coil can be energized, and the rotor of the three-phase ordinary AC motor is not wound coil, and the rotor cannot be energized.

Hello, no, the magnetic field of the three-phase asynchronous motor is that the rotor produces a slow, and the rotor coil can be energized.

Three-phase asynchronous motor (triple-phase asynchronous motor) is a kind of induction motor, is a kind of motor that is powered by simultaneous access to 380V three-phase AC current (phase difference of 120 degrees), because the rotor and stator of the three-phase asynchronous motor rotate in the same direction and at different speeds, there is a slip rate, and the circular comma is called the three-phase asynchronous electric finger trace motor. The speed of the rotor of the three-phase asynchronous motor is lower than the speed of the rotating magnetic field, and the rotor winding generates electromotive force and current due to the relative motion between the magnetic field and the magnetic field, and interacts with the magnetic field to generate electromagnetic torque to achieve energy conversion.

The rotor of a three-phase asynchronous motor does not need to be electrified.

The rotor is the rotating part of the motor, including the rotor core, rotor windings and rotating shafts.

Rotor core: As part of the magnetic circuit of the motor, and place the Qinglv rotor windings. Generally, it is made of millimeter-thick silicon steel sheets, which are almost made and stacked.

Rotor winding: It acts as a cutting stator magnetic field, generates induced electromotive force and current, and rotates the rotor under the action of the rotating magnetic field. According to the different structures, it can be divided into two types: squirrel cage type and winding rotor.

Squirrel cage rotor: Its structure is to insert copper strips into the groove of the rotor core, and weld two copper rings at both ends of the copper strips, as shown in Figure (a) below. In this way, the rotor windings resemble a squirrel cage rotor.

In order to save copper and facilitate manufacturing. At present, the vast majority of rat cages are replaced by aluminum.

Wound bending rotor: The wound rotor winding is also made into three symmetrical windings like the stator winding, which are appropriately arranged and combined.

Embedded and fixed in the rotor core groove, finally make three groups of winding rings connected into a star-shaped connection, three lead wires are respectively connected to three copper slip rings on the fixed rotating shaft, on each ring, respectively place a fixed brush, through the contact between the brush and the slip ring, make the rotor winding and the external rheostat connected, while starting the motor.

Shaft: used to transmit torque and support the weight of the rotor. They are generally made of medium carbon steel or alloy steel. In addition to the stator and rotor, there are also other accessories such as end caps and fans.

The stator of the three-phase asynchronous motor has three windings and six wire ends, and can adopt the star connection and the triangle connection.

Among them, the triangular connection method uses three lead ends to connect the three-phase AC live wire respectively, the star connection method uses four lead ends, the center end is connected to the neutral line, and the three outer ends are respectively connected to the three-phase AC live wire.

It should be noted that the three-phase AC live wire has a phase sequence distinction, and there will be two rotation directions when connecting the three-phase motor, so it must not be connected wrongly, if it is wrong, it is necessary to switch the two-phase AC live wire.

Centralized windings are used in salient pole stators, which are usually wound into rectangular coils, wrapped and shaped with warp tape, and then dried, and then embedded in the core of the convex poles. Generally, the excitation coil of commutator motors (including DC motors and general-purpose motors) and the main pole windings of single-phase shaded pole salient pole motors are centralized windings.