Siemens Reducer Gear Motor

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Q:AC motor speed regulator
Now is the best performance of AC motor speed controller frequency converter, it is by changing the power supply frequency of the motor to achieve speed, speed range, energy saving, but also can slow down growth, and can be used as motor starter, but the price is relatively high.
Q:The difference between AC motor frequency conversion speed regulation and voltage regulation speed regulation
Variable frequency speed regulation: large speed range, high smoothness, energy saving, can realize constant torque or constant power speed regulation, but must have dedicated frequency conversion power supply, the cost is high.
Q:The working principle of AC motor!
The single-phase AC motor has only one winding, and the rotor is squirrel cage. When a single-phase sinusoidal current through the stator windings, the motor generates an alternating magnetic field, the magnetic field strength and direction for sinusoidal variation with time, but the spatial position is fixed, so it is also called the magnetic field is alternating pulsating magnetic field. The alternating pulsating magnetic field can be divided into two with the same speed, the rotation direction of the rotating magnetic field are on the contrary, when the rotor is at rest, the two rotating magnetic field generating torque of two equal and opposite in the rotor, the synthetic torque is zero, so the motor rotation. When we use a force of the motor rotation to one direction (e.g., clockwise), the rotor and the clockwise rotation direction of the rotating magnetic field between the motion of cutting magnetic lines becomes smaller; the rotor and the counterclockwise rotation direction of the rotating magnetic field between the motion of cutting magnetic lines becomes large. Thus, the balance is broken, and the total electromagnetic torque generated by the rotor will no longer be zero, and the rotor will rotate in the direction of the push.
Q:Why is the AC motor connected to the capacitor?
The capacitor is used for phase separation, to make the current phase two Rao group produced in the nearly 90 of the difference in eve joy to produce a rotating magnetic field. In three-phase electric current, the current between each phase has phase difference itself, do not divide phase. A capacitor induction motor has two windings, that is, the starting winding and the running winding. The two windings are 90 degrees apart in space. At the start of a series of winding capacitor is larger, when the running winding and start winding through the single alternating current, because the capacitor current of the starting winding in time than the current running winding advance angle of 90 degrees, the first to reach the maximum. Two of the same pulse magnetic field is formed in time and space, so that a rotating magnetic field produces the air gap between the stator and the rotor, the rotating magnetic field, the induced current in the rotor current, and rotating magnetic field interact to produce electromagnetic torque, the motor rotation.
Q:What are the speed regulating methods of AC motors? What are the characteristics of each?
1, motor speed smooth, can be adjusted according to the speed, is the future development direction of AC motor; (FM), 2, star delta conversion, generally in large motor starting with star start, triangle operation, reduce the starting current. (adjust the magnetic pole logarithm) 3, and there is double speed, three speed motor, increase the winding, mainly change the stator winding connection method to change the speed. There are two factors that change the speed of a pole: the magnetic pole, the logarithm, and the frequency
Q:AC operation of AC motor control circuit must be used?
In addition, alternating current is a sinusoidal current, not a sudden change in the approach. It's a little bit of gradual change. So the magnetic field is also gradual. There is no magnet in the alternating current motor but an iron core. The iron core induces an electric current in the gradual magnetic field, and the magnetic field of the current must cause it to rotate normally, and of course it also changes. That is to say, what you mean is that the frequency is constant, but the external magnetic field is constant, but the induced magnetic field is related to the rotation speed. The motors that can change speed change by changing the number of electrodes. Such as: the original current one cycle outside the gradient magnetic field for a week, now two cycles outside the gradient magnetic field for a week, not half of it?!
Q:Working principle of AC motor
The principle of AC motor, electric coil in the magnetic field rotation. You know the principle of DC motor, DC motor? Is utilized to automatically change the direction of the current in the coil commutator, so the coil stress direction consistent and continuous rotation.
Q:What is the size of DC motor and AC motor under the same power?
The output power is the same, and the DC motor is small.. The power consumption is the same as that of AC motor.
Q:Winding of single-phase AC motor?
The winding of AC single-phase unidirectional motor is composed of two sets of coils, which can be a plurality of magnetic poles (electromagnets), which can be divided into main or auxiliary parts or can be operated and started, and the two sets of coils can not be connected wrongly. AC single phase bidirectional motor of the two sets of coils, regardless of the main, deputy, or can be composed of a number of magnetic poles (electromagnets). AC three-phase motor three sets of coil parameters are same, magnetic pole number can also be more than one. The connection between the coils of a single phase three-phase motor must be in a certain order, not necessarily in series. The number of poles (electromagnets) varies according to the speed of the motor.
Q:How to distinguish AC and DC machines
The main difference between AC and DC motor is the power properties of different AC motors using AC generator, the AC and DC motor; using direct current, the generator is DC. Advantages of DC motor (AC motor and more): smooth speed control characteristics, can achieve economic. And AC motor need to use inverter, electromagnetic regulator and other components to achieve this function.

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