ABB Original AC DC HIgh Efficiency Motor QABP

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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:What's the difference between a DC motor and an AC motor?
The 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. We know that the voltage between the three-phase power supply phase difference is 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 of stator winding rotation the magnetic field, the rotor conductor (bar) will cut the revolving magnetic field lines and induced current, current in the rotor and rotating magnetic field interact to produce electromagnetic force, the electromagnetic force generated by the electromagnetic torque drive along the rotor rotating magnetic field direction of rotation. Under normal circumstances, the actual speed of the motor is lower than the rotating speed of the rotating magnetic field. For this reason, we call three-phase motor as asynchronous motor.
Q:How do I know whether the motor is a direct current motor or an AC motor?
Look at the nameplate, such as AC 220, V is AC motor, DC 220 V is DC motor!
Q:What is the size of DC motor and AC motor under the same power?
In general, the DC motor is large in size, but it depends on whether the supply voltage of the two motor is the same.
Q:What's the difference between asynchronous and synchronous AC motors?
The so-called synchronous motor, that is, the armature winding magnetic field, rotating speed and rotor rotation in the same direction, the same speed. Such a motor is generally as follows: there is a winding on the rotor, a centralized excitation winding; no winding on the rotor; and the use of permanent magnet structure; rotor without winding; no permanent magnet; with teeth and slots. A distributed winding is arranged on the stator. With this structure, the number of slip rings and brushes can be reduced to a minimum. Such motors are also called transition motors. There is also a special requirement, and the excitation windings placed on the stator structure, such a structure is generally referred to as pivot type (such as home ceiling fan).
Q:What's the difference between a three-phase asynchronous motor and an ordinary one?
Torque motor: it is a kind of special motor with soft mechanical characteristics and wide speed range. The shaft of the motor does not output power at constant power, but outputs power at constant torque. The torque motor includes: DC torque motor, AC torque motor and brushless DC torque motor. Difference: the torque motor is designed to reduce the speed without changing the output torque. When the power supply voltage is decreased, the motor speed drops, but the output force distance is constant, and the current is constant. Ordinary motors can not be slowed down by depressurization, which causes the output torque to decrease while the current increases and the motor is burned out. For inverter control: to confirm the torque of the motor is controlled by AC asynchronous motor or synchronous motor, because the inverter is used in AC motor; also confirmed that the locked rotor current is greater than or equal to the maximum current of inverter torque motor, torque motor can work because in the blocking state.
Q:Does the AC motor have carbon brushes?
Yes。 Carbon brush for AC motors: carbon brushes can be used in direct current motors or AC commutator motors or slip rings as sliding contacts for introducing current
Q:Soybean milk machine AC motor or DC motor is good?
With a special fragrance, and slightly stimulated; slightly sweet, and accompanied by stimulating spicy taste. Flammable gas whose vapors can form explosive mixtures with air and can be miscible with water at any rate.
Q:How large AC contactor and thermal relay should be used for the motor of 3KW? There are steps to calculate better.
3KW motor rated current is about 6A. The bigger contactor can prolong the service life of CJX20-1210 (12A) 8-10A air thermal relay's role is to protect the motor so do not benefit too much 7-8A can protect the motor when a fault occurs.
Q:Please exchange the motor. Is it possible to adjust the speed with a governor?
At present, the most preferential speed regulation mode is frequency converter with the best performance, while the output torque is constant at low speed.
Q:Why is DC motor wider than AC motor? High speed regulation accuracy? How do you know?
The DC motor has the ability to keep the rated torque from the zero speed to the nominal speed, so it can perform stepless speed regulation from zero speed to rated speed (constant torque).

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