ABB AC Motor High Voltage NV Series

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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.
Q:Can AC motors be controlled by frequency converter?
If your site does not exist in low frequency operation, you can choose ordinary asynchronous motor, if there is low frequency operation that suggested that you choose frequency conversion motor, mainly ordinary motor cooling fan is connected with the main shaft of the motor, when the heat dissipation fan low down, along with the heat dissipation of the motor will not be able to guarantee. But the frequency conversion motor is the opposite, because the fan is controlled separately, belongs to forced air cooling. Even at low frequencies, there is no effect.
Q:Rated speed of AC motor
AC motor: a machine used to convert mechanical energy and alternating current energy. AC motor has become the most common motor because of the great development of AC power system. Compared to the AC motor and DC motor, because there is no commutator (see DC motor commutation), therefore has the advantages of simple structure, convenient manufacture, relatively strong, easy to make high speed motor, high voltage, high current, large capacity. 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:Why is the capacitance of a single-phase motor adjustable speed?
AC current through the capacitor, but will be hindered, the capacitance is smaller, the greater the barriers, the greater the capacitance block is small, this is the capacitance, capacitance motor is several capacitors and the motor windings are connected in series, current resistance to adjust the motor using the capacitance, so as to realize the motor speed.
Q:How can I change the alternating current welding machine into a DC welder?
At the output end of AC welding machine ~ ~ two terminals, one rated welding output voltage is greater than 2 times the no-load voltage, rated output welding current is greater than 2 times the output current of the rectifier.
Q:How much does 15kw power AC power consume per hour?
KW 1 hours of electricity is common sense, but there is a problem of motor efficiency and power, that is to say the motor to reach the rated value at full load working condition, if it is light load or no load may not every KW of electricity, if overloading or frequent start maybe more electricity. For reference only!
Q:AC motor stator winding does not turn, why the back EMF?
The principle of an electric motor can be understood in junior high school. It is a device that transforms electrical energy into mechanical energy. The energized coil is subjected to a magnetic field to its ampere force in the magnetic field, causing the coil to rotate around the shaft. Ampere force is the power source of coil rotation. If we see only the power of the ampere force, the coil of the motor will continue to accelerate, which is obviously impossible because each motor has a maximum speed.
Q:The actual power consumed by a three-phase AC motor is equal to line voltage * line current. How do you explain that?
The calculation formula of three-phase symmetrical load; power line I U 3 P= V COS line with =3I2R.Line voltage refers to the parallel voltage between the two phase lines (A-B, A-C, B-C), and the phase voltage refers to the parallel voltage of the relative zero (A-0, B-0, C-0).In the three-phase four wire distribution system neutral directly grounding; line voltage is equal to the phase voltage of 3 V, the phase voltage is equal to 3 V / line voltage, line current is equal to phase.
Q:Which good reputation is synchronous synchronous motor?
You can see Wuxi city base metal products factory is a 50KTYZ permanent magnet synchronous motor, permanent magnet synchronous motor 60KTYZ, 65KTYZ permanent magnet synchronous motor, permanent magnet synchronous motor 80KTYZ, stepper motor products such as professional production and processing company, products are widely used in various types of household electrical appliances, office automation, automatic control etc.. Wuxi city base metal products factory from ultra early start to now and in the future, we are committed to providing high-quality products and services for customers from incoming, manufacturing, shipping and other processes in strict control of product quality, the production of motor advanced manufacturing technology as the premise, with modern production and testing equipment for the protection. The pursuit of zero product defect rate of PPM, is committed to providing customers to create large value add motor pursuit, to achieve the terminal customer satisfaction as the core; add motor is building motor manufacturing enterprises and make unremitting efforts.
Q:Why does the AC motor turn?Do I feel that the coil is not in a steady state?
Through the above analysis can be summed up as follows: when the working principle of the motor stator winding of the motor (three of the difference between the 120 electrical degrees), into three alternating current, will produce a rotating magnetic field, the rotating magnetic field cutting rotor windings, thus the induced current in the rotor winding (the rotor winding is a closed path). The rotor conductor carrier will produce electromagnetic force in the stator rotating magnetic field, so as to form the electromagnetic torque of the rotating shaft of the motor and drive the rotation of the motor and the motor rotation direction and rotation direction of the magnetic field.

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