Table of ContentsI. Introduction 2II. Construction of the machine 21) The stator 2a. The steel frame: 2b. The core: 2c. Stator windings (conducting wires): 32) The Rotor 3i. Squirrel cage type: 3ii. Wound rotor or slip ring: 33) Other components for construction: 41. The shaft: 42. Bearings (end rings): 43. Fan: 44. Terminal box: 45. Two end bells: 4III. The different sizes of the 5IV induction motor. 5V starting methods. 6VI speed control. Applications of 7VII three-phase induction motor. Conclusion 8References 9IntroductionThe search for the best is an unstoppable process, where the best is defined based on the desired application, but there are some common concerns to consider the best, such as good performance with appropriate cost for example. Three phase induction motor is widely used in different machines in industrial field because it is low cost, simple in design and much more to be discovered in this research. To produce this motor, two different selections were taken, firstly, whether it is three phases, according to Brain in 2000, the sine wave curves of the three phases have a curve of the three which reaches its peak current at any time. to a two-phase power supply for example (Brain, 2000). Secondly, i.e. induction, induction motors do not require any separate source to start the motor and can maintain different levels of speeds. In the huge world of motors, each type of motors has its own mode of construction, method of starting, different sizes and power outputs and the way the speed can be controlled in addition to the applications applicable to each type of these motors . MachineThe external shape of any product...... middle of paper ....../fa_pro_sgeard_shing1_e/ctlg_geared_e_13.pdfWEG. (2012, October). Three-phase induction motors - Master Line. Retrieved from MEG: http://ecatalog.weg.net/files/wegnet/WEG-third-phase-induction-motors-master-line-50019089-brochure-english.pdfBrain, M. (April 1, 2000). “How electricity networks work”. Retrieved from HowStuffWorks.com: http://science.howstuffworks.com/environmental/energy/power.htmConstructing a three-phase induction motor. (nd). Retrieved from Electrical Engineering Online Study Site: http://www.electrical4u.com/construction-of-third-phase-induction-motor/Education, D. (Director). (2014). Construction of a three-phase induction motor [Cinema].Three-phase induction motors. (2011). In S. K. Bhattacharya, Basic Electrical and Electronic Engineering (pp. 181-226). Pearson Education India.