ABB Low Voltage AC Motor

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Q:Panasonic servo motor A4 series, AC synchronous motor or AC asynchronous motor?
The servo motor can make the control speed and position accuracy very accurate, and the voltage signal can be converted into torque and speed to drive the control object. The servo motor rotor speed control by the input signal, and can respond quickly, in the automatic control system, used as actuators, and electromechanical time constant, high linearity, initiating voltage characteristics, to convert signals received from the motor shaft angular displacement or angular velocity output. Divided into DC and AC servo motor two major categories, the main feature is that when the signal voltage is zero, no rotation phenomenon, the speed increases with the torque and uniform decline.
Q:What are the classifications of AC motors?
According to the required number of different phase AC power supply, AC motor can be divided into single-phase and three-phase two categories, currently the most widely used is the three-phase asynchronous motor, this is because the three-phase asynchronous motor has the advantages of simple structure, low cost, durable, easy maintenance etc.. In the absence of three-phase power supply and some less power motor, single-phase asynchronous motor is widely used.
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? What are the characteristics of each?
1, motor speed smooth, can be adjusted according to the speed, is the future development direction of AC motor; (FM), 2, star delta conversion, generally in large motor starting with star start, triangle operation, reduce the starting current. (adjust the magnetic pole logarithm) 3, and there is double speed, three speed motor, increase the winding, mainly change the stator winding connection method to change the speed. There are two factors that change the speed of a pole: the magnetic pole, the logarithm, and the frequency
Q:Relation of voltage, speed, voltage and torque of single phase AC motor
The voltage and torque is constant (c= C T= square poles P * * * the number of turns of the stator voltage of U / L) * f (frequency rotor resistance + leakage resistance)The voltage is low rotational speed torque, output torque of the motor load torque is not greater than the operation of what the problem is, if the motor in full load and overload operation will reduce the service life of the motor, the motor blocking words soon consumed.If the economy allows, you can use single-phase frequency conversion speed control, variable frequency speed regulation, rated frequency speed regulation is constant torque output.
Q:What does permanent magnet brushless motor and brushless DC motor mean?
The permanent magnet synchronous motor rotor adopts permanent magnet, so that the rotor magnetic field in space distribution can be divided into sinusoidal and trapezoidal wave two kinds: one is sinusoidal waveform; the other is trapezoidal wave.
Q:How much does 15kw power AC power consume per hour?
15kw power AC motor depends on the specific load rateIf the load rate is 100%, with the load of 15KW, 1 hours is 15kW.h, 15 degree electricity,If the load rate is 80%, with the load of 12KW, 1 hours is 12kW.h, 12 degree electricity,If there is no load, 20% to 30%, 1 hours is about 4kW.h, about 4 degrees of electricity,
Q:How to synchronize two ordinary AC motors?
The motor does not need to be synchronized. As long as the same type of motor on the line, the two sides automatically run at the same time into the synchronous state. As long as the load on both sides of the motor is not the same. When a motor is switched a little faster, the load of the motor is increased, the speed of the motor is slowed down automatically, the load of the other motor is reduced, and the speed of the motor is increased naturally.
Q:Is household sewing machine good for AC motor or direct current motor?
There are special motors, and the DC motor market is rare
Q:Common problems of AC motors
The shaft of the motor --- the bearing base -- the current in the base circuit is called the shaft current. The reasons of shaft current generated: (1) magnetic field asymmetry; (2) harmonic current in power supply; (3) manufacturing, installation is not good, because the rotor eccentricity caused by uneven air gap; (4) the removable stator core has a gap between two half; (5) a stack of fan stator core the patch number of inappropriate choice.

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