Siemens Reducer

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Q:Difference between energy consumption braking of DC motor and AC motor
Energy consumption braking is a form of braking.It is divided into DC motor energy consumption braking and AC motor energy consumption braking.
Q:Isn't the starting winding symmetrical? If it's symmetrical, it's also an alternating pulsating magnetic field, how can you drive the rotor?
1. did not start winding, the rotor twist of the hand is because you can start to a rotating direction of the rotor, so that the main winding can rotate in a direction that, as long as you manually start after the rotor can not stop, because the main winding rotor will provide energy.2. the starting winding is symmetric, also accounted for 1/2 circle, starting winding due to capacitor phase shifting function and produce, in the electric cycle and the main winding is 90 degrees (like 90 degrees in advance), such changes in the magnetic field generated by the magnetic field have successively, have a fixed rotation direction, thereby according to a rotation direction of the rotor, the motor does not start winding and does not move because the main winding is 180 degrees and polar conversion, the rotor can be considered both left forces can be considered to be the right power, so the rotor is buzzing motionless.
Q:Is the permanent magnet motor a direct current motor or an AC motor?
Compared with the electric excitation motor, permanent magnet motor, especially rare earth permanent magnet motor has the advantages of simple structure, small volume, reliable operation; light weight; low loss, high efficiency; the shape and size of the motor can be flexible and other advantages, and the application range is very wide, almost all over the aerospace, defense, industrial and agricultural production and daily life in various fields.
Q:Is the stepping motor an alternating current motor or a direct current motor?
General stepper motors are 2 kinds of power drives, unipolar (Uniporlar), bipolar (Bipoilar). In general, we refer to the stepper motor as a direct current motor.
Q:AC servo motor why drive?
Servo motor control is more complex, you need to change the frequency, voltage, current, in order to achieve the motor speed, torque, position of the overall control, servo drive is dry. The servo motor is only responsible for how much frequency and voltage you give me, so I'll do the right thing. Changes in frequency, voltage, direction, etc., are handled by the servo controller.
Q:What is the reason that the single phase AC motor is turned on and off?
The first type of split start type, shown in Figure 1, is assisted starting by the auxiliary starting winding, with little starting torque. The operating rate is approximately constant. Mainly used in electric fans, air conditioners, fans, motors, washing machines and other motors.Second, the starting winding does not participate in the operation, while the motor to run the winding coil continue to act, as shown in figure 2.Third, motor static centrifugal switch is connected to the power, to start after starting work in the capacitor, when the rotor speed reaches the rated value of 70% to 80% when the centrifugal switch will automatically jump, starting capacitor to complete the task, and disconnected. The running capacitor is connected to the starting winding to participate in the operation. This method is generally used in air compressors, cutting machines, woodworking machines and other heavy load and unstable place.
Q:Is the motor in the inverter air conditioner a direct current motor?
Inverter motor with "special AC variable frequency induction motor + inverter", the degree of automation and high production efficiency of equipment miniaturization, increase comfort, is currently replacing the traditional mechanical control and DC speed control scheme.
Q:Can AC motors be controlled by frequency converter?
Only frequency conversion motor can use frequency converter to speed up, ordinary motor can not use frequency converter speed regulation.But it is possible to start the AC motor by using frequency converter.
Q:The working principle of AC motor!
The prerequisite of the three-phase asynchronous motor to rotate is to have a rotating magnetic field, and the stator winding of the three-phase asynchronous motor is used to generate a rotating magnetic field. As we know, but the voltage phase power phase between the difference of 120 degrees in phase three, a stator winding of the three-phase induction motor in the spatial direction is 120 degrees, so when in the stator windings in three-phase power, the stator winding will produce a rotating magnetic field, as shown in Figure 1 in the process of its generation. The graph is divided into four moments to describe the generation of the rotating magnetic field. In each period of the current, the rotating magnetic field rotates in space for a week, i.e., the rotation speed of the rotating magnetic field is synchronous with the change of the current. The rotation speed of rotating magnetic field is: n=60f/P, f is power frequency, P is magnetic pole, logarithm and N unit is: revolutions per minute. According to this formula, we know that the speed of the motor is related to the number of poles and the frequency of the power supply. To this end, there are two ways to control the speed of the alternating current motor: 1, change the magnetic pole method; 2, frequency conversion method. In the past, the first method was used, and now the variable speed control of AC motor is realized by frequency conversion technology.
Q:100W AC motor or DC motor good?
The advantages of DC motors (compared with AC motors) are: to achieve economic, smooth speed characteristics. And AC motor need to use inverter, electromagnetic regulator and other components to achieve this function.With the same power, the same speed (must be the same speed) compared with DC motor and AC motor, DC motor of the expensive price point, mainly because of its complicated structure must have "commutator" to achieve AC-DC conversion. This also increases the manufacturing cost of DC motors to a certain extent.

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