# Construction and working principle of linear induction motor pdf

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Published: 06.04.2021  A linear induction motor is a developed version of cylindrical induction motor. It is special type of induction motor which gives linear motion instead of rotational motion as in the case of a conventional induction motor. If the induction motor of Figure A is cut axially and spread out flat as shown in Figure B , it corresponds to a linear induction motor LIM.

## Construction of induction motors

Linear Induction Motor LIM is an asynchronous motor, working on the same principle an Induction Motor works, but is designed to produce the rectilinear motion, unlike the rotary movement produced by a motor; hence the word Linear Induction Motor. LIM is an advanced version of rotary induction motor which gives a linear translational motion instead of the rotational motion. In this type of motor, the stator and rotor are called primary and secondary respectively. The secondary of the linear induction motor consists of a flat Aluminium conductor with a ferromagnetic core. For understanding the construction of Linear Induction Motor, we will first take a look at the construction of Induction Motor as shown in figure below. ## Working Principle of an Induction Motor

A Linear Induction Motor LIM is an advanced version of rotary induction motor which gives a linear translational motion instead of the rotational motion. The stator is cut axially and spread out flat. In this type of motor, the stator and rotor are called primary and secondary respectively. The secondary of the linear induction motor consists of a flat aluminium conductor with a ferromagnetic core. If the stator is cut along the line ab and spread out flat the figure formed is shown below. This portion forms primary of the LIM. PDF | This paper explores the construction process of a linear induction motor (​LIM), the basic working principle of a LIM, enabling handling of mathematical.

## Linear induction motor

Whereas in the year , the operating model was brought into development by Hermann Kemper, and the full-size operating version was introduced by Eric in the year Then after, this device was employed in many applications across many industries. This article gives clearly explains Linear Induction Motor , its working principle, performance, design, construction, advantages and disadvantages and major applications. Let us dive into the concept. Linear Induction Motor is abbreviated as LIM and this is the enhanced version of the rotary induction motor where the output is linear translational motion in the place of rotating motion.

The simplest form of construction of a Linear Motor is as simple as a three phase induction motor. It has three phase winding housed in slots in a field system. It is simply the primary winding on a stator in case of an induction motor. The "stator" is laid out in the form of a track of flat coils made from aluminum or copper and is known as the "primary" of a linear motor.

Induction motor construction Figure. Induction motor components. Stator construction The stator of an induction motor is laminated iron core with slots similar to a stator of a synchronous machine. Coils are placed in the slots to form a three or single phase winding. Construction of Three Phase Induction Motor - electrical4u,The three phase induction motor is the most widely used electrical motor. A linear induction motor LIM is an alternating current AC , asynchronous linear motor that works by the same general principles as other induction motors but is typically designed to directly produce motion in a straight line.