Siemens ILE0001 Series Low Voltage AC Motor

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part namebrandmodelVoltageprotectioncooling
motorSiemens1LA81PQ8400V,690V,2.3KV,4.16KV,6KVIP55IC411 (1LA8,1LA4)
IC416 (1PQ8,1PQ4)



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Q:Difference between energy consumption braking of DC motor and AC motor
When the motor is operated in an electric state, if the armature voltage U is suddenly dropped to zero, the armature is connected with an additional resistor R. The two ends of the armature are disconnected from the power grid and are quickly connected to an appropriate resistor. The motor is in the running state of the generator, converting the kinetic energy of the rotating part into electric energy and consuming the resistance. With the kinetic energy consumption, the speed decline, braking torque is also becoming smaller and smaller, so this brake method is still relatively high in speed, braking role is relatively large, with the decline in speed, braking effect also decreases.
Q:When the AC motor is burnt out, is the stator burnt out or the rotor? What about DC motors?
Normally, the AC motor burns out is the stator coil, and the DC motor burns out is the rotor coil. Because the stator coil of the AC motor is armature, the rotor of the direct current motor is armature. The fluctuation of the load and the fluctuation of the supply voltage directly affect the armature coil. Of course, there are exceptions to the special case of motors.
Q:Panasonic servo motor A4 series, AC synchronous motor or AC asynchronous motor?
AC synchronous motor.Servo motor now basically divided into two kinds: brushless DC and AC servo, this type of motor drive waveform is brushless DC motor, is trapezoidal wave, brushless DC motor can also be called permanent magnet brushless synchronous motor.Servo motor (servo motor) refers to the servo system to control the operation of mechanical components of the engine, is a kind of auxiliary motor indirect transmission device.
Q:What is the size of DC motor and AC motor under the same power?
The output power is the same, and the DC motor is small.. The power consumption is the same as that of AC motor.
Q:Types of AC motor speed control and the difference between them
Frequency conversion speed, which is currently the most commonly used control methods, can achieve stepless speed regulation, the semiconductor converter (or circuit) to change the power supply frequency of the motor, the power (frequency =50HZ) change into the required frequency achieve the purpose of speed, or the above formula: =60f/ magnetic pole synchronous AC motor speed. The frequency of "F", the speed will change.
Q:Motor starting mode
Direct startThe advantages of direct start is required to start simple, less equipment, low cost. Current motor direct start is about 5 times the normal operation of the motor, often start, power supply line or transformer capacity should be greater than the motor capacity of more than 5 times; the motor is not frequent starting, power supply line or transformer capacity to the motor motor capacity should be more than 3 times. The requirements for small capacity motor is easy to be realized, so the vast majority of small capacity motor is started directly, without the need for a large amount of motor step-down start. It is a power supply line and transformer capacity is difficult to meet the motor direct start on the other hand, the strong impact of the grid and the motor starting current, affect the service life of the motor, the stable operation of the power grid so adverse, large capacity Motors and motors that do not start directly should be started by lowering voltage
Q:AC operation of AC motor control circuit must be used?
In addition, alternating current is a sinusoidal current, not a sudden change in the approach. It's a little bit of gradual change. So the magnetic field is also gradual. There is no magnet in the alternating current motor but an iron core. The iron core induces an electric current in the gradual magnetic field, and the magnetic field of the current must cause it to rotate normally, and of course it also changes. That is to say, what you mean is that the frequency is constant, but the external magnetic field is constant, but the induced magnetic field is related to the rotation speed. The motors that can change speed change by changing the number of electrodes. Such as: the original current one cycle outside the gradient magnetic field for a week, now two cycles outside the gradient magnetic field for a week, not half of it?!
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:What's the difference between a three-phase AC motor and a DC motor?
Squirrel cage type AC motors are of small size, light weight, low price and long service life, which are opposite to the direct current motors;But the DC motor speed performance is good, AC motor is a little bit worse.
Q:How many kinds of braking modes are there in AC motors? What are the characteristics of each?
Mechanical brakingBraking method using mechanical device to stop motor rapidly after stopping power supply. Such as electromagnetic brake, brake.

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