ABB Original China High Low Voltage Motor QABP Series

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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:has anyone aput an ac drive on a slip ring induction motor after shortcircuiting the rotor terminals ?
Variable frequency drives VFDs) can be connected to slip ring induction motors with shorted rotor terminals. Because of ringing voltage transients that occur at the waveform switching transition points, VFDs cause voltage stresses on the motor insulation. Motors rated for VFD use are recommended, but older motors can be used. Output reactors or dv/dt filters are recommended for use with older motors. Most VFD suppliers can provide detailed recommendations. Many suppliers have experience with crane retrofits and can provide information and VFD features for coordinating the VFD operation with friction brake controls etc.
Q:can you run a brushed ac motor on dc current?
Brushed AC motors are in fact serial DC motors. So, the answer is YES, you can. But you must do some maths not to overload it so it burns out. And (as in AC) it will not be a reversible motor! (i.e. if you reverse the poles, it will still rotate in the same sense).
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:AC motor gone bad?
Inside the outside unit there is a large capacitor. Replace it. It is the start up capacitor for the motors. Be sure to pull the curuit breakers first.
Q:How is frequency is efecting when a motor running by electric power,What is the relation of KW with FREQUENCY?
Dear Meetantacheri, I am not sure which frequency you refer to: 1) The Power Supply Frequency You need to look in your Ordinary Level Physics Books or on the wwweb at: Synchronous AC Motors Asynchronous AC Motors 2) The Rotational Speed of the Motor: For a DC Motor this depends on whether the rotor and stator are Series or Parallel Connected and the Mechanical Load that is on the Motor. For a Synchronous AC Motor you get field slippage if the mechanical load is too high I am not sure what you mean by the kW / f part. If a motor is overloaded it slows down, takes a lot of current and the power consumption rises. This overheats the motor and the winding are destroyed. (see back-EMF)
Q:how a universal motor works both in dc and ac?
A universal motor is similar to a DC motor with the armature connected in series with the field. If DC is supplied it works like any DC series motor. If AC is supplied, the stator and rotor field strengths will vary exactly in phase with each other. When the AC current changes direction, the stator and rotor fields will reverse at the exact same instant. Therefore, the torque will always be in the same direction even though the fields change direction because the stator and rotor fields always have the same relationship with each other. When connected to AC, torque magnitude pulses at twice the line frequency. Comparing operation at a given AC RMS voltage and an equal DC voltage, the torque at any given speed is lower for AC operation. That is due the higher impedance with AC and magnetic saturation at the peaks of the AC waveform. To avoid overheating due to eddy-current losses, series motors intended for use as universal motors are constructed with laminated stator and rotor cores.
Q:velocity error of AC servo motor?
The error will depend on the load fluctuations. If the fluctuation is a step - i.e., a constant value - the error will eventually disappear. If the load is fluctuating there will always be an error. To find exactly how much the error will be, you have to setup the transfer function, which will depend on the moment of inertia of the motor and drive mechanism, the power of the motor and the load. Then, apply the final value theorem, to find out the error. The toughest parameter to obtain is the moment of inertia. If it is not provided, you may calculate it through a small test. The friction coefficient, likewise. . . .
Q:How do I change the speed of the motor?
There are several schemes. The 1. is to change the ratio of the mechanical driving wheel and driven wheel driven by the motor. The 2. is to use mechanical transmission to change the speed of the motor. 3. is to use electronic governor to change the speed of the motor. As for which scheme to use, it depends on your environment.
Q:domestic sewing machine motor?
dear sir, how can we check is it univeral (ac, dc ) motor, please explain. thanking you
Q:What is AC induction motor?
The rotor does not directly enter the AC, the rotor is equipped with a closed loop conductor. The rotating magnetic field does relative motion with the rotor, and the closed conductor on the rotor cuts the magnetic field lines to produce an electric current, which then interacts with the rotating magnetic field of the stator so as to drive the rotor to rotate. As described above, the current in the rotor is induced by the rotating magnetic field of the stator, so it is called induction motor.

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