Three phase induction motor construction and working pdf

A simple explanation of how a 3 phase induction motor works. Construction of three phase induction motor electrical4u. A portion of rotating magnetic field in a three phase. Learn what a three phase induction motor is, how it is constructed, and its working. How does three phase induction motor works construction and. Watch this video to understand the working principals of the three phase induction motors. These are of two types, squirrel cage and slip ring motors. Explain the construction, working principle and types of three phase induction motor. The three phase induction motors are simple in construction, rugged, low cost and easy to maintain.

They run at a constant speed from noload to the full load. The topic lies under the basic electrical and electronics engineering course that. 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. 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. Record all nameplate information for the induction motor. Threephase induction motor operating instructions 1ph722. Threephase induction motor construction, working, types. An electrical motor is an electromechanical device which converts electrical energy into mechanical energy. We also discuss the construction of a three phase motor including its. Induction motors are by ac switchboard and it is a.

Single phase induction motor working in hindi duration. Advantages and disadvantages of 3 phase induction motors. 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. One single phase wattmeter plus miscellaneous apparatus as needed. Squirrel cage and slipring or wound rotor induction motor. The rotor is separated from the stator by a small airgap which ranges from 0. These types of motors are known as selfstarting induction motors. You should also make a dc measurement of stator winding linetoline resistance.

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. There are two types of 3phase induction motor based on the type of rotor used. Three phase ac induction motors are widely used in industrial and commercial applications. Three phase induction motor construction and working principle. Pdf construction of three phase linear induction motor. These motors are selfstarting and use no capacitor, start winding, centrifugal switch or other starting device. The basic idea of an electric motor is to generate two magnetic fields. The 3 phase set of currents, each of equal magnitude and with a phase. The three phase induction motor is the most widely used electrical motor. Induction motor basics, single phase and three phase. A 3 phase induction motor has two main parts i stator and ii rotor. A 3 phase induction motor can be used for different applications with various speed and load requirements. In three phase induction motor, the power is transferred from stator to rotor. 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.