ABB Low Voltage AC Motor M2BA

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Brand Name:ABBModel Number:HXR 560 SeriesType:Squirrel Cage Motor
Frequency:62.2 HzOutput Power:750 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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Q:Why does the AC motor turn?Do I feel that the coil is not in a steady state?
When three to three alternating current in the stator winding through the symmetry, it produced a synchronous speed n1 along the stator and rotor roundfor space in a clockwise rotation of the rotating magnetic field. Due to the rotation speed of rotating magnetic field to N1, the beginning of the rotor conductors is static, so the rotor conductor will cut the stator rotation the magnetic field induced electromotive force (EMF direction dingze judge with the right hand).
Q:Why AC motor speed control system will replace DC motor speed regulation system?
At present has been put forward and the practical application of the PWM control scheme is more than a dozen kinds, about PWM control technology in the power of many famous international conferences, such as PESC, IECON, EPE annual meeting has formed a special. Especially the microprocessor used in PWM technology and the digital pattern, is constantly changing, from the initial pursuit of sinusoidal voltage waveform, sine to current waveforms, then to sinusoidal flux; from the optimal efficiency, minimum torque ripple, to eliminate noise, PWM control technology development has experienced a continuous innovation and the continuous improvement process. So far, new proposals have been put forward, which further proves that the research of this technology is in the ascendant.
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: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: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:Where are the low voltage AC asynchronous motors used in electric machines?
Low voltage AC asynchronous motors are the most widely used motors. They are used in all walks of life. The washing machines, electric fans and lampblack machines in the family belong to this category.
Q:What are the speed regulating methods of AC motors? Detailed point
(1) rotor circuit series resistance: used in AC winding asynchronous motors. The range of speed regulation is small, the resistance consumes power, and the motor efficiency is low. Used of cranes.(2) change the speed of power supply voltage, the speed range is small, the torque decreases greatly with the voltage drop, and the three-phase motor is usually not used. Used for single-phase motor speed regulation, such as fan.(3) cascade speed regulation, in essence, is the introduction of additional rotor electromotive force, change its size to speed. It is also only used in wound motors, but the efficiency is improved.(4) electromagnetic speed regulation. Used only for slip motors. By changing the exciting coil current, stepless smooth speed regulation, the mechanism is simple, but the control power is smaller. Not suitable for long term low speed operation.
Q:Speed control method of AC motor
From the point of view of energy saving, the speed regulating device of AC motor can be divided into two categories: efficient speed regulating device and low speed governing device. The characteristics of an efficient speed regulating device are that the rated speed is maintained basically at the speed regulation, no slip loss is increased, or the differential feedback is fed back to the power grid. The low speed regulating device is characterized by changing the speed change and increasing the slip loss during speed regulation.
Q:How large AC contactor and thermal relay should be used for the motor of 3KW? There are steps to calculate better.
1, rated current = power *2, or 6A2, the selection of AC contactor, the current domestic > = rated current, usually for a minimum of 9A. The reason is why recommend you go with CJX1 0922 or CJX2 0911 9A.3 、 thermal relay is usually a current range, rated current included in the range, preferably near the middle, which is ideal.Selection of domestic products, circuit breakers, contactors and other appropriate amplification, because the quality is not reassuring.
Q:What kinds of AC motors are divided into?
AC motors are usually divided into AC generators, AC motors and synchronous regulators according to their functions.AC motors are divided into two major categories: synchronous motor and asynchronous motor.

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