Case analysis of speed regulation of three-phase asynchronous motor

The speed regulation of three-phase asynchronous motor refers to the artificial change of motor speed under the same load. From what we have learned, the speed of the motor is Therefore, there are three ways to change the speed of the motor: variable frequency speed regulation, variable pole speed regulation and variable slip speed regulation. […]

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Methods to prevent the motor from being burned

Electrical equipment is generally protected according to the principle of “seven points of maintenance and three points of protection”. Only in this way can electrical equipment be used for a long time. As the power equipment in the electrical automatic control system, the motor should also follow this principle. Let me talk about how to […]

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What is the rotation principle of three-phase asynchronous motor?

Three phase AC motor is composed of stationary stator and rotating rotor, which are separated by air gap. According to the rotor structure, the motor is also called cage induction motor. It is a kind of AC motor. It is also called AC asynchronous motor or AC induction motor. It was invented by the great […]

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Interpretation of three phase asynchronous motor model

The name plate of three-phase asynchronous motor is just like the ID card of each of us. The ID cards we use are made according to the unified regulations of the state, and they are unique. The name plate of three-phase asynchronous motor is no exception. It is also named according to the national unified […]

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Identification method of stator winding of three phase asynchronous motor

Three phase asynchronous motor stator winding of the first and last end of the discrimination method, respectively, using the multimeter inspection method, low voltage AC power supply method, fast judgment of the three-phase asynchronous motor stator winding end, need a friend reference. As follows:    1、 One of the inspection methods with Multimeter ① Judge […]

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