ABB High Voltage AC Motor

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Q:Is the single-phase carbon brush motor a direct current motor or an AC motor?
The role of the motor is to change the current direction of the DC motor and AC motor, the DC motor is to change the rotor's conductive coil, thereby changing the rotor magnetic pole. Thereby changing the motion of the motor. The carbon brush is used for motor commutator or slip ring, as sliding contact body import and export current, its thermal conductivity, and good lubrication performance, and has certain mechanical strength and direction of the spark of instinct. Almost all motors use carbon brush, which is an important component of the motor.
Q:Can AC motors use direct current?
Ordinary asynchronous AC motors are not allowed.But some live brush AC motors are slightly modified and can be powered by direct current.
Q:Is the stepping motor an alternating current motor or a direct current motor?
Stepper motor is an induction motor, its working principle is the use of electronic circuit, the DC power supply variable components, multi-phase timing control current this current stepper motor power supply, stepper motor can work normally, the power supply for the stepper motor driver is divided into the multi phase sequence controller.
Q:What is the reason that the single phase AC motor is turned on and off?
Check the switch first, is there any bad contact?. After the problem of the switch is removed, the power is turned on, and whether the cold state can run normally every time. If there is a phenomenon that the cold condition can not work properly, the internal circuit or winding is not working.A single-phase alternating current motor is a rotating electromagnetic machine used to realize the conversion of electrical energy and mechanical energy.
Q:What is the difference between AC motor speed and DC motor speed?
DC motorThe stator of a direct current motor is a fixed magnetic field, and the direct current changes through the brush of the rotor to form a magnetic field around it, thereby rotating in the stator. In industrial enterprises, due to relatively reliable DC power supply, DC motor is generally used to require reliable operation of mechanical or mechanical spare security; and because the DC motor with variable speed input voltage can also change, so often need to control local DC motor are many, such as milling machine, planer, electric vehicles, subway trains and so on.
Q:Who knows the main difference between DC motor and AC motor, I hope to say a little more simple, thank you
As the name suggests, the direct current motor uses DC as the power supply. AC motors use alternating current as power source.Structurally, the principle of the direct current motor is relatively simple, but the structure is complex, and it is not easy to maintain. The principle of AC motor is complex, but the structure is relatively simple, and it is easier to maintain than the direct current motor.
Q:What is brushless motor, no and brush what is the difference?
Brushless motor refers to brushless DC motor, which consists of motor, its main body and driver. It is a typical electromechanical integration product.Because of the brushless DC motor is controlled to run, so not like synchronous motor frequency control under heavy start as in the rotor plus a start winding, does not produce oscillation and step mutation in the load. The permanent magnet of small and medium capacity brushless DC motor is now using rare earth neodymium iron boron (Nd-Fe-B) material with high magnetic energy. Therefore, the volume ratio of the rare earth permanent magnet brushless motor reduces a frame number compared with the three-phase asynchronous motor of the same capacity.
Q:Why is DC motor speed regulating better than AC?
As long as the DC motor changes the armature voltage, it can speed up, but the AC motor needs to consider the stator and rotor coupling problem
Q:Brushless DC motor is AC motor or DC motor, why?
The DC motor only has no brush and commutator. It should be inside to check the rotor position through the Holzer sensor, make the drive circuit turn over, and make sure the motor turn in one direction
Q:Why do motors need capacitance when they start?
Only for single-phase AC motors, the rotating magnetic field is formed by the phase-shifting of the capacitor because a single winding can not form a rotating magnetic fieldA three-phase magnetic field is not needed, so a rotating magnetic field can be synthesizedHenryzheng2 | published on 2013-02-17 17:21

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