ABB Original AC DC HIgh Efficiency Motor QABP Series

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Brand Name:ABBModel Number:HXR 400 SeriesType:Squirre Cage Motor
Frequency:50.2 HzOutput Power:350 KWProtect Feature:Explosion-proof
Phase:Three-phaseCertification:CEAC Voltage:690V
Place of Origin:Shanghai China (Mainland)Efficiency:IE 1Packaging Detail::EXPORT STANDAR WOODEN CASE
StructureAsynchronous MotorFunctionDriving UsageUniversal

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Specialized in Manufacturing and Supplying a wide range of Electric Motors since year 2002.

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Q:Why does the AC motor turn?Do I feel that the coil is not in a steady state?
Because the child is short circuit loop ends conductor short circuit, in the role of the induced EMF, will produce the rotor conductor with Induction EMF direction basic consistent induced current. The rotor load by electromagnetic force in the stator magnetic conductor (the role of the direction of the force with the left hand dingze judge). The electromagnetic force electromagnetic torque the rotor shaft to drive the rotor to rotate along the rotating direction of the magnetic field.
Q:AC servo motors generally choose synchronous or asynchronous?
This will be based on your purpose, such as CNC machine tools feed shaft, generally use AC synchronous servo motor, spindle general use AC asynchronous motor. The synchronous machine of the same power is more expensive than the asynchronous machine
Q:Why is AC motor control more difficult than DC?
The mechanical characteristics of AC motor (curve) as 1 tilt of the toilet, the mechanical characteristics of "soft", and "inflection point" (or there is a negative resistance region), the operating condition of the motor once in the negative resistance region will lose control".
Q:How to change DC motor to AC motor?
Check torque is not less than the original DC motor, AC motor torque (N = m) = motor rated power (W) / (2 * pi * speed /60). Motor power and frequency converter are selected accordingly
Q:What's the difference between direct current motor and AC motor?
Alternating current motors are divided into stator windings and rotor conductors. The rotor conductor is shaped like a silicon steel sheet between a cage and a conductor. Some of the AC motors also have windings
Q:How to change AC motor to DC motor?
Application: the DC motor and the AC motor are different in structure at first. The DC motor has a commutator (two opposed half copper rings), and the AC motor has no commutator.DC motor is generally used in low-voltage circuit, DC power can be easily carried, such as electric bicycle, that is, DC motor, as well as computer fans, recorders, motors, etc. are all.Difference method: the main point is whether there is a commutator, what power is used. A DC motor with a commutator is a DC motor.
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:Why is DC motor wider than AC motor? High speed regulation accuracy? How do you know?
And AC motor plus inverter (AC motor itself can not speed), if the stepless speed regulation, its torque is changed with the speed of the motor changes, generally when less than 30HZ when the operation is unstable. So, DC is wider than AC speed regulation.
Q:What is AC motor?
AC motors are divided into two major categories: synchronous motor and asynchronous motor. The rotor speed of synchronous motor ns is the same as that of rotating magnetic field. It is called synchronous speed. There is a strict relationship between ns and the frequency of the AC current (f) and the magnetic pole logarithm (P) of the motor. Ns = f/P in china,The power supply frequency is 50 Hz, so the synchronous speed of the dipole motor is 3000 revolutions per minute, and the synchronous speed of the quadrupole motor is 1500 revolutions per minute. The rotor speed of an induction motor is always lower than or higher than the speed of its rotating magnetic field, and the asynchronous name comes from it. The difference between the rotor speed of a induction motor and the rotating speed of a rotating magnetic field (referred to as slip) is usually less than 10%. It can be seen that the speed of AC motor (synchronous or asynchronous) is controlled by the frequency of power supply. Therefore, AC motor speed is difficult, the best way is to change the frequency of power supply, and in the past to change the frequency of power supply is more complex. Therefore, before 70s, in the speed control occasions, the use of DC motors. With the development of power electronic technology, AC motor frequency conversion speed regulation technology has begun to be practical.
Q:How many kinds of braking modes are there in AC motors? What are the characteristics of each?
Mechanical brakingBraking method using mechanical device to stop motor rapidly after stopping power supply. Such as electromagnetic brake, brake.

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