## Slip in Induction Motor

Hi friends, in this article I am describing the importance of slip in induction motor and hoping you will find it informative and useful.   In the induction motor rotor always rotates speed less than synchronous speed. The difference between the rotor speed (N) and the rotating magnetic flux speed (Ns) is called slip. The …

## Rotating Magnetic Field in 3 Phase Induction Motor

The induction motor rotates due to the rotating magnetic field in 3 phase induction motor, which is produced by the stator winding in the air gap between in the stator and the rotor. The stator has a three phase stationary winding which can be either star connected or delta connected.   Whenever the AC supply …

## Induction Motor Working Principle

Hi friends, in this article, I am going to discuss about “induction motor working principle” and hoping you will like my effort.     A simple circuit diagram of the squirrel cage induction motor is shown in the figure. The stator winding can be either delta-connected or star-connected. The stator winding is connected to the …

## Three Phase Induction Motor Construction

Induction machines are also called asynchronous machines i.e. the machines which never run at a synchronous speed. Whenever we say induction machine we mean to say induction motor. Induction motors may be single-phase or three-phase. In this article, I am discussing about three phase induction motor construction.   The three-phase induction motors are the most …

## Shaded Pole Induction Motor Working Principle

Shaded pole induction motor is constructed with salient poles in the stator. Each pole has its own exciting coil. A 1/3rd portion of each pole core is surrounded by a strap of copper forming a closed loop called the shading coil. The rotor is a usual squirrel cage type.     Shaded Pole Induction Motor …

## Three Phase Power Measurement

In ac circuits, power is measured with the help of wattmeter. A wattmeter is an instrument, which consists of two coils called the potential coil (PC) and the current coil (CC). The potential coil having high resistance is connected across the load and carries the current proportional to the potential difference across the load. The current coil …

## Delta Connection Definition

In this method of interconnection, the dissimilar ends of three phase windings are joined together i.e. finishing end of one phase is connected to the starting end of the other phase and so on to obtain a closed circuit.   The three line conductors are taken from the three junctions of mesh and are …

## Star Connection Definition

Star Connection Definition   In this method of interconnection, three similar ends a’, b’, c’ of the three windings are joined together at a common point. This point is known as star point or neutral point N.   The three conductors meeting at star point are replaced by a single conductor known as neutral …

## Eddy Current Loss Formula

Hi friends,   In this article, I am discussing the eddy current loss, eddy current loss formula, its causes and applications. So let us start with our topic.   What is eddy current loss?   Whenever the magnetic flux linking to conducting material changes, voltages are induced in all possible paths and hence the induced …

## Hysteresis Loss | Loop

Hi friends, in this article, I am going to discuss the hysteresis loss, hysteresis loop in the magnetic material in and their significance. So let us start. A ferromagnetic material consists of local regions called ‘domains,’ each of which is spontaneously magnetized. In an unmagnetized material, the directions of magnetization in different domains are different. …