Siemens 1PQ Series AC Motor

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Q:Why should a single-phase AC motor start with a capacitor?
A starting winding is added to the stator, and the starting winding and the main winding are separated by 90 degrees in space. Connect a suitable capacitor starting after winding, the winding equivalent circuit becomes a resistor inductor and capacitor in series, as long as the capacitance value of the phase angle of voltage current meet ahead of a certain angle, such as 30 degrees; at the same time, if the current running winding perceptual hysteresis voltage of 60 degrees, then the current phase two the winding difference reached 90 degrees, the so-called phase separation principle. In this way, the two currents, which differ by 90 degrees in time, pass through two windings that are 90 degrees apart in space, which will produce (two phase) rotating magnetic fields in space, and the motor will rotate naturally.
Q:Is servo motor AC motor? What's the difference? How can I tell whether it is AC or DC?
AC motor, of course, is an AC synchronous motor, DC motor is DC power exchange, the general is UVW three-phase, see the change of the mark will know
Q:Is the motor in the inverter air conditioner a direct current motor?
The motor in the inverter air conditioner is certainly an AC motor because it is powered by frequency conversion.The so-called frequency conversion refers to the purpose of regulating speed by regulating the frequency of power supply.Since the frequency is adjustable, it indicates that the direction of the current varies periodically.Some series of AC motors can also be used as DC motors, but they are not normally used in air conditioners.
Q:Speed control method of AC motor
The characteristics of various speed regulating devices:(1) change pole speed regulation;Advantage:No additional slip loss, high efficiency;Control circuit is simple, easy maintenance, low price;The smooth speed regulation with higher efficiency can be obtained by matching with the stator voltage regulating or electromagnetic slip clutch.Shortcoming:Stepless speed regulation without stepless speed regulation. Due to the limitation of the motor structure and manufacturing process, only 2~3 kinds of pole to rail speed regulation are usually achieved, and the speed range is quite limited.
Q:How to change AC motor to DC motor?
Application: the DC motor and the AC motor are different in structure at first. The DC motor has a commutator (two opposed half copper rings), and the AC motor has no commutator.DC motor is generally used in low-voltage circuit, DC power can be easily carried, such as electric bicycle, that is, DC motor, as well as computer fans, recorders, motors, etc. are all.Difference method: the main point is whether there is a commutator, what power is used. A DC motor with a commutator is a DC motor.
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: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:Which motor has a great torque when the motor is under DC at the same power?
Ordinary (squirrel cage) AC motor starting current and start torque is small, it is much better than the start of DC motor, which is a common sense.
Q:What is the principle of the single-phase AC motor in the washing machine?
The motor of the washing machine should be called: capacitance type single-phase asynchronous motor. The principle is a series capacitor in the amount of the starting winding, the voltage and current of capacitor lags behind its 90 degree, it will produce a magnetic field in the stator, the motor rotating motor! Static centrifugal switch is turned on when the electric starting capacitor in after starting work, when the rotor speed reaches the rated value of 70% to 80% when the centrifugal switch will automatically jump, starting capacitor to complete the task, and disconnected. The running capacitor is connected to the starting winding to participate in the operation. This method is generally used in air compressors, cutting machines, woodworking machines and other heavy load and unstable place.
Q:The working principle of AC motor!
At present, there are two kinds of AC motors commonly used: 1 and three-phase asynchronous motors. 2 、 single-phase AC motor. The first type is widely used in industry, while the second is used in civil electric appliances.

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