Building an Induction Motor

Table of Contents I. Introduction 2 II. Machine configuration 2 1) Stator 2a. Steel frame: 2 b. Core: 2c. Stator winding (wire): 3 2) Rotor 3 i. Risk type: 3 ii. Winding rotor or slip ring: 3 3) Other components: 4 Axis: 4 Bearing (end ring): 4 Fan: 4 Junction box: 4 bells on both ends: 4 III. Asynchronous motors of different sizes 5 IV. Starting method 5 5. Speed ​​control 6 VI. Application of Three Phase Asynchronous Motor 7 VII. Conclusion 8 Reference 9 Introduction Looking for the best one is a process that can not be stopped. The best of them is based on the required application definition, but in some ways

Motors with armored windings alone are called induction motors. From a structural point of view, induction motors are most suitable in most cases. The induction motor operates on the principle of induction, in which the electromagnetic field is induced to the rotor as the rotating magnetic field of the stator cuts the stationary rotor. Induction motors are much more common types of electric motors used in industrial, commercial or residential environments. It is a three phase AC motor. Its characteristics are as follows.

An induction motor or an asynchronous motor is an AC motor in which an electric current necessary for generating a torque in a rotor is obtained by electromagnetic induction of a magnetic field from a stator winding. Therefore, it is possible to manufacture the induction motor without electrical connection to the rotor. The rotor of the induction motor may be wound type or cage type. Three-phase squirrel cage induction motors are widely used as industrial drives due to their robustness, reliability and economy. Single phase induction motors are widely used in small loads like household electrical appliances such as fans. Traditionally used for fixed speed service, induction motors are increasingly being used for variable frequency drive (VFD) in variable speed service. VFD provides energy saving opportunities that are particularly important for existing and future induction motors for variable torque centrifugal fans, pumps and compressor load applications

A three-phase induction motor is another problem. All three phase induction motors can be operated at variable speed with the help of a properly sized VFD. Some three-phase motors are more suitable for variable speed operation than others, but they all operate with VFD. However, many factors must be taken into account to determine the suitability of a particular motor, so please call us to discuss your situation. There are some practical limitations for this, but the most important is the diameter of the rotor. As the speed goes up, the centrifugal force on the rotor increases dramatically. In most cases, the manufacturer will use a motor with a 2 pole (3600 rpm) rating and a small diameter rotor at 1800 rpm (and low speed). If the larger rotor is rotating at twice the speed for redesign of the windings, the rotor needs to suddenly process 4 times the centrifugal force that the design experiences (force increase Square)