Siemens High Efficient High 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:The difference between induction motor and induction motor
In fact, the same is true, asynchronous AC motor is the wire package after power generation magnetic field, and then the rotor will have a magnetic field, called induction magnetic field, their asynchrony, so called asynchronous AC motor
Q:Types of AC motor speed control and the difference between them
Slip motor speed regulation ---- the motor output shaft is equipped with a pair of electromagnetic coupling, through the speed detection to adjust the magnetic field of the coupler, so that it has set speed. (it is no longer seen, the drawback is that the efficiency is low, the advantage is that stepless speed regulation)
Q:Who knows the main difference between DC motor and AC motor, I hope to say a little more simple, thank you
As the name suggests, the direct current motor uses DC as the power supply. AC motors use alternating current as power source.Structurally, the principle of the direct current motor is relatively simple, but the structure is complex, and it is not easy to maintain. The principle of AC motor is complex, but the structure is relatively simple, and it is easier to maintain than the direct current motor.
Q:The difference between a DC motor and an AC motor for a garbage collector
Germany laolunshi food waste processor motor is AC motor. It is dedicated to food waste disposal, LKMS stainless steel motor, never rust, permanent quality. Low operating noise. Oilless bearings, maintenance free for life
Q:How to realize constant power or constant torque output of three-phase AC motor?
Is generally achieved through the frequency converter in the frequency power supply 50HZ, with inverter motor, the inverter output is below 50HZ, the motor is in constant torque output, but the inverter output is higher than 50HZ, the motor is of constant power output
Q:AC motor speed regulator
The other is called magnetic transmission, and the cost performance is similar to that of the converter. But the principle is different. It is characterized by long life and little maintenance. It has been applied in the speed regulation of large motors. AC motor speed controller is simple and can be used for limiting the buck, governor as the electric fan, the speed control method is simple, but the load characteristics of the motor is very poor, only suitable for small motor load and stable situation.
Q:Why does high-speed rail use AC traction motors in China?
I haven't seen anything special about high-speed rail, but it seems that the DC motor doesn't have such good performance. DC brush is very suitable for high power, brush aging is too fast, low efficiency. The essence of DC brushless or AC, is only square wave input, current, power and torque higher harmonic, electromagnetic environment is poor. Moreover, the most widely used brushless DC is still on the computer fan, high-speed rail is not enough power. For the moment, AC motor is the best characteristic. The result of superposition of three-phase sine wave current is a constant constant, without harmonic pollution.
Q:Are there 3 harmonics in the voltage of a three-phase alternator? Why?
If the generator is loaded and the load has another 3 harmonic generation, then there may be 3 harmonics in the outlet voltage when the generator is loaded;
Q:What about the capacitance of the AC motor?
In general, the starting capacitor of single-phase AC motor can not be chosen too large, the starting torque angle will deviate from the maximum value, and the secondary winding current consumption will increase. The motor is too long for the motor to run for a long time!
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.

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