ABB Original High Low Voltage Motor

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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:The difference between DC motor and AC motor
Master formulas n1=60f/P, S= (N1-N), /n1, n= (1-S), 60f/P, and understand their meaning (very important), and be able to flexibly use these formulas for calculations. Also remember: the slip rate of the motor at normal load is approximately SN, 0.01-0.06. The examples in the book should be emphasized.
Q:Brushless AC motor
1, direct current motor with DC, AC motor with alternating current;2, the DC motor needs a reversing device, which is divided into brush and brush. The brush DC motor is changed by commutator, and the brushless motor is reversed by circuit logic;3, AC motor is divided into three-phase AC motor (divided into: synchronous and asynchronous), single-phase AC motor.4, the difference between AC asynchronous motors and synchronous motors is that the rotor of induction motors is non-magnetic (usually copper and aluminum), and the rotor of synchronous machines is permanent (or rather Yu Yongci).5, the difference between single-phase AC motor and DC motor: single-phase DC motor stator or rotor is a permanent magnet (or the equivalent of a permanent magnet, namely: the fixed polarity does not change), and the rotor single-phase AC motor is non magnet, also does not need to be electrified (usually cage). If the single-phase AC electric current is applied to the brushless DC motor, the motor can be operated without the power supply reversing logic circuit.
Q:Why is the AC motor connected to the capacitor?
The purpose of the AC motor capacitor is to separate the single-phase alternating current from another phase alternating current of 90 degrees by the phase shift of the capacitor. The two alternating current into two groups or four groups of motor winding, forming a rotating magnetic field inside the motor rotating magnetic field induced current in the rotor, the induced current magnetic field and rotating magnetic field in the opposite direction, by rotating magnetic field into the rotating push and pull.
Q:Rated speed of AC motor
The alternating current motor revolution =60f/p.f is the alternating current frequency.P is the magnetic pole, the logarithm.60 is minute minute numberA four pole motor is a pair of 2 poles, so the theoretical revolutions of the four pole motor are 1500 revolutions per minute. This is the revolution of the rotating magnetic field. The actual revolutions are less than those of the rotating magnetic field. The quadrupole motor is usually 1450 revolutions per minuteThe rotating principle of three phase asynchronous motorThe 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, current per change a cycle of the rotating magnetic field in the space rotation, change of rotating speed and current rotating magnetic field is synchronized. 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
Q:What does permanent magnet brushless motor and brushless DC motor mean?
Speed control system composed of permanent magnet synchronous motor used to be called the sinusoidal permanent magnet synchronous motor (PMSM) speed control system; and the trapezoidal wave (Fang Bo) speed control system composed of permanent magnet synchronous motor, the principle and control methods of DC motor and similar, so this system for brushless DC motor (BLDCM) synchronous motor speed control system, Fang Bo is also known as the brushless DC motor (or square wave motor).
Q:How do AC motors keep in the same direction?
As for the synchronous motor, the principle of some trouble, is the basic rotor asynchronous motor into a rotor like DC motor. In the start into asynchronous start, start to rotor power into sync, oh, forgot to tell you that the speed of the motor rotating magnetic field than low speed asynchronous call motor, synchronous motor is the same, the speed of the rotating magnetic field is synchronous speed.
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:AC servo motor why drive?
In addition, the servo controller does not have the ability of logic control, if need servo motor first slow turn, then turn fast, then to stop somewhere and then reverse, and so on, these signals are more responsible for the upper controller of the servo controller, such as PLC, such as motion controller.
Q:What are the advantages of AC motors?
The coverage of AC motor power greatly, from a few watts to several 101000 watts, even millions of kilowatts. In the early 1980s, the largest turbo generator reached 1 million 500 thousand kilowatts.
Q:Can AC motors use direct current?
DC motor is also on the brush structure changing direction of manufacturing power changing magnetic field, electromagnetic force and drag on the rotor, the AC motor for AC power supply design, no directional structure, once the direct current, stator winding equivalent inductance and resistance, inductance in the DC power supply and the equivalent circuit, the resistance heating to a certain extent possible burn.

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