Three phase induction motor construction and working pdf

Explain the construction, working principle and types of three phase induction motor. In three phase induction motor, the power is transferred from stator to rotor. The rotor is separated from the stator by a small airgap which ranges from 0. There are two types of 3phase induction motor based on the type of rotor used. The working of the threephase induction motor is based on the principle of electromagnetic induction.

Almost 80% of the mechanical power used by industries is provided by three phase induction motors because of its simple and rugged construction, low cost, good operating characteristics, the absence of commutator and good speed regulation. The rotor will constantly be turning to align its magnetic field with that of the stator field. How does three phase induction motor works construction and. Advantages and disadvantages of 3 phase induction motors. When three phase stator winding of an induction motor is energized from a 3 phase supply, a rotating magnetic field is set up which rotates around the stator at synchronous speed ns. Three phase ac induction motors are widely used in industrial and commercial applications. Safety information 1 description 2 transport, assembly, and connection 3 startup 4 operation 5 faults 6 maintenance 7 spare parts 8 notes 9 threephase induction motor. These motors are selfstarting and use no capacitor, start winding, centrifugal switch or other starting device. This paper explores the construction process of a linear induction motor lim, the basic concepts behind key aspects of linear induction machines construction and the testing process of a working. Single phase induction motor working in hindi duration. Construction and working of 3 phase induction motor on ship.

An electrical motor is an electromechanical device which converts electrical energy into mechanical energy. The three phase induction motor is the most widely used electrical motor. Record all nameplate information for the induction motor. Construction of three phase induction motor electrical4u. One single phase wattmeter plus miscellaneous apparatus as needed. In the case of three phase ac alternating current operation, the most widely used motor is a 3 phase induction motor, as this type of motor does not require an additional starting device. You should also make a dc measurement of stator winding linetoline resistance. Threephase induction motor operating instructions 1ph722. Three phase induction motor construction and working principle. They run at a constant speed from noload to the full load. The topic lies under the basic electrical and electronics engineering course that. Learn what a three phase induction motor is, how it is constructed, and its working. Induction motors are by ac switchboard and it is a. These are of two types, squirrel cage and slip ring motors.

Three phase induction motor construction and working 3d animation video. We also discuss the construction of a three phase motor including its. A 3 phase induction motor has two main parts i stator and ii rotor. The basic idea of an electric motor is to generate two magnetic fields. Watch this video to understand the working principals of the three phase induction motors. A portion of rotating magnetic field in a three phase. The 3 phase set of currents, each of equal magnitude and with a phase. Squirrel cage and slipring or wound rotor induction motor. Pdf construction of three phase linear induction motor. A simple explanation of how a 3 phase induction motor works. Threephase induction motor construction, working, types. Induction motor basics, single phase and three phase. A 3 phase induction motor can be used for different applications with various speed and load requirements. These types of motors are known as selfstarting induction motors.