Siemens EX Series Motor

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Q:Can the speed and torque of three-phase asynchronous AC motor be controlled at the same time?
Frequency converter frequency control principle is to change the pressure to change the power, frequencyFor example, the reference frequency is 50HZ, and the voltage is proportional to the frequency below 50HZ. The frequency is actually the speed of the reflected image. This torque is constant, which we call constant torque speed regulation. Torque magnitude equalT=9550*P (rated power) /N (rated speed)
Q:How does the battery of the electric car drive the AC motor?
In addition, this type of motor does not require inverters, the motor itself is a low voltage motor. Want to help you, the specific work principle can refer to the ordinary brush DC motor, the difference is coil winding current commutation instead of controller electronic commutation.
Q:Is the motor in the inverter air conditioner a direct current motor?
Inverter motor with "special AC variable frequency induction motor + inverter", the degree of automation and high production efficiency of equipment miniaturization, increase comfort, is currently replacing the traditional mechanical control and DC speed control scheme.
Q:How to make the AC motor stop rotating rapidly?
A, electromagnetic brake.Two, use YEJ motor with brake itself, it also and ordinary Y series three motor mounting dimensions are exactly the same, but with a little bit length.
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:How do AC motors keep in the same direction?
Because the working principle of AC motor stator is formed in a rotating magnetic field, then the rotor itself is a closed loop (induction motor) or a magnet (synchronous motor), the rotor rotation direction of magnetic field and steering only related to the rotation direction of magnetic field has not changed, turn to constant.
Q:What does the D axis and the Q axis mean for AC induction motors?
AC asynchronous motor is a kind of electric drive device which transforms electric energy into mechanical energy. It is mainly composed of stator, rotor and air gap between them. After the stator winding leads to the three-phase AC power supply, the rotating magnetic field is generated and the rotor is cut to obtain torque. Three phase AC asynchronous motor has many advantages, such as simple structure, reliable operation, low price, high overload capacity, convenient operation, easy installation and maintenance. It has been widely used in various fields.
Q:How much does 15kw power AC power consume per hour?
15kw power AC motor depends on the specific load rateIf the load rate is 100%, with the load of 15KW, 1 hours is 15kW.h, 15 degree electricity,If the load rate is 80%, with the load of 12KW, 1 hours is 12kW.h, 12 degree electricity,If there is no load, 20% to 30%, 1 hours is about 4kW.h, about 4 degrees of electricity,
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:How the AC motor with DC power transfer
If the permanent magnet synchronous motor is used, the motor will be braked and the motor will be positioned at a fixed angle. Of course, we can not add full voltage.

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