Siemens EX Series AC Motor

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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:What is the maximum speed of a three-phase AC motor?
Level two is close to 3000 rpm, does not include ultra high speed, ultra high speed has 6000
Q:What about a single phase AC motor reversing?
The steering of a single AC motor has different rotating principles according to the structural differences. The following is a reference for professional data:Single phase motors are usually divided into four types: split phase, push cabinet, hood type and ordinary series excitation type. Since the structure of the four is different, the method of changing its rotation direction is also different
Q:What is the reason that the single phase AC motor is turned on and off?
Exclusive use only. 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. If the cold running is normal and the use of a period of time does not turn, and then use the hand to touch the motor whether the fever is serious, such as temperature is too high, the heat protector is broken, and so the motor can be turned cold. This phenomenon should check whether the no-load and load resistance of the motor is too large, whether or not the winding has a short turn between the two places, causing the temperature rise too high.The two capacitors on the motor, one is the starting capacitor, the other is the operating capacitor, which produces phase difference. The starting capacitor is only connected to the circuit when the motor is started, and it is disconnected when it is running normally. The operating capacitor is always connected to the circuit.
Q:Brushless AC motor
The brushless AC motor produced by our company is the largest in china. There is not much difference in composition, requirements for maintenance and low maintenance, cooling the stator winding more convenient, small inertia, easy to improve the system of fast corrugated pipe coupling, suitable for high speed and high torque working condition, smaller size and weight under the same power.
Q:What are the classifications of AC motors?
According to the principle of AC motor can be divided into synchronous and asynchronous motor two categories, there are strict correspondence between the rotating speed and the AC synchronous motor frequency, speed in operation strictly constant; asynchronous motor speed with the change of the load change slightly.
Q:Soybean milk machine AC motor or DC motor is good?
With a special fragrance, and slightly stimulated; slightly sweet, and accompanied by stimulating spicy taste. Flammable gas whose vapors can form explosive mixtures with air and can be miscible with water at any rate.
Q:Why does high-speed rail use AC traction motors in China?
The design of asynchronous motor in AC motor is perfect, robust and easy to control. It is absolutely dominant in AC motor. The permanent magnet synchronous machine motor model is also very good, is the main application of high precision digital machine tools, hybrid electric vehicles, but also on some protection measures not in place, there is overheating phenomenon of demagnetization.
Q:Why is Tesla's Model s electric vehicle using AC motor instead of the more popular frequency conversion DC motor?
1, the DC motor structure is complex, the cost is relatively high, late maintenance trouble.2, larger motors are required to be connected to large cooling fans.3, it can realize the speed regulation simply and economically. Big torque and good mechanical characteristics.4, AC motor structure is simple, low cost, simple maintenance. You can't speed it yourself. In the past, the frequency conversion was not timely, and the DC motor was used in places requiring good speed control (machine tools, cranes, textiles, etc.).
Q:The working principle of AC motor!
At present, there are two kinds of AC motors commonly used: 1 and three-phase asynchronous motors. 2 、 single-phase AC motor. The first type is widely used in industry, while the second is used in civil electric appliances.

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