Siemens EX Series Motor

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Q:Why AC motor speed control system will replace DC motor speed regulation system?
At present has been put forward and the practical application of the PWM control scheme is more than a dozen kinds, about PWM control technology in the power of many famous international conferences, such as PESC, IECON, EPE annual meeting has formed a special. Especially the microprocessor used in PWM technology and the digital pattern, is constantly changing, from the initial pursuit of sinusoidal voltage waveform, sine to current waveforms, then to sinusoidal flux; from the optimal efficiency, minimum torque ripple, to eliminate noise, PWM control technology development has experienced a continuous innovation and the continuous improvement process. So far, new proposals have been put forward, which further proves that the research of this technology is in the ascendant.
Q:Can the voltage regulating module be used as AC motor speed regulation?
Ordinary three-phase AC motor (commonly used three-phase AC asynchronous motor) is the stator winding into three-phase alternating current, resulting in a rotating magnetic field (the rotation of the magnetic field speed n=60f/p, also known as synchronous speed). The rotating magnetic field is relative to the rotor winding (usually the squirrel cage winding), and the rotor winding induces the rotor induced current due to the electromagnetic induction principle. The rotor current produces a tangential torque under the influence of the magnetic field, so the rotor spins.
Q:What's the UVW representative of the motor, please?
Three phase alternating current is a form of transportation of electrical energy, referred to as three-phase electricity. Three phase AC power supply is composed of three alternating current potential with the same frequency, equal amplitude and phase difference of 120 degrees. There are many uses of three-phase alternating current. Most of the AC power equipments in industry, such as motors, adopt three-phase alternating current, which is often referred to as the three-phase four wire system. In daily life, the use of single-phase power supply, also known as lighting electricity. When the lighting power supply, use three-phase electricity one relative to supply electrical equipment, such as household appliances, while the other one is the line of three-phase four wire fourth wire, which is the zero line and the zero line drawn from the neutral point of the three-phase power.
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:What is the difference between AC motor speed and DC motor speed?
Alternating current dynamoAC motor is rotating to produce a rotating magnetic field formed by the stator voltage in the rotor should be on the.The speed is generally fixed speed. But because of its simple structure and convenient power supply, it is widely used in industrial enterprises. Small to household refrigerators, washing machines, vacuum cleaners, large machine tools, and so on, all use AC motors.
Q:AC motor control chip
Alternating current machine: a machine used to realize the mutual conversion of 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. The [1-2] AC motor was invented by Nicola Tesla, an American scientist from Serbia.
Q:The difference between a DC motor and an AC motor for a garbage collector
Of course, alternating current is good. Because the AC motor is more stable than the direct current motor, the performance is stable, the heating is low and the efficiency is high.
Q:AC operation of AC motor control circuit must be used?
When the current through the coil, in under the action of the permanent magnet, through attraction and repulsion when it rotates, and to balance the magnet, the original electric line is corresponding to contact the commutator and brush and brush away, connected to the group with the impulse to coil contacts should be so, repeat it, DC motor will turn up
Q:Please exchange the motor. Is it possible to adjust the speed with a governor?
The frequency changer is the alternating current frequency, so long as the equipment permits, may realize the stepless speed change in principle;The logarithm of the modified pole is a phase change, the variable series is limited, and the slip rate is changed simultaneouslySlip can be changed in a variety of ways, but the range is limitedI don't know which one exactly
Q:DC motor speed control performance is very good, why do we need AC motor?
A DC power supply, DC motor needs a high power, AC motor is not required; two, brush DC motor system belongs to the mechanical friction, need regular maintenance (replacement cleaning brush, commutator), AC motor is not these; three is, carbon brush spark will cause electromagnetic interference to the extensive use of electronic systems the four is the same; DC motor power, the volume ratio of AC motor; five, AC converter now has been very mature, can meet most of the requirements of speed.

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