Induction Motor

Applications of Induction Motor

The Polyphase Induction Motor is a motor whose stator contains a number of windings. They are greater than one horse power or one kilowatt. The National Electrical Manufacturers Association (NEMA) has specified the motors according to the various Class, which are discussed below in detail. There are various applications of Polyphase wound rotor induction motors, …

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Induction Generator

Induction Generator is also known as Asynchronous Generator. An Induction Machine sometimes is used as a generator. Initially, an induction generator or the machine is started as a motor. At the starting, the machine draws the lagging reactive volt-amperes from the supply mains. The speed of the machine is increased above the synchronous speed by …

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Advantages and Applications of an Induction Generator

In the previous article Induction Generator we have seen, What is an Induction Generator? And it’s torque-speed characteristic. Here we are now going to discuss the various Advantages, Applications and the Limitations of the Induction Generator. Contents: Advantages of an Induction Generator Applications of an Induction Generator Limitation of an Induction Generator The induction machine …

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Pole Amplitude Modulation Technique

The basic feature of Pole Amplitude Modulation (PAM) winding is the layout, which is irregular. The windings are divided into two parts. The two parts are either connected in series or parallel. The directions of current in the two halves are either same or opposite. The process of the current reversal is equivalent to modulation …

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Harmonics in an Induction Motor

Space harmonics fluxes are produced by the windings, slotting, magnetic saturation, inequalities in the air gap length. These harmonic fluxes induce voltages and circulate harmonic currents in the rotor windings. The interaction between the harmonic currents generated in the rotor and the harmonic fluxes results in the Harmonic torques, vibrations and the noise. The air …

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Circle Diagram of an Induction Motor

The Circle Diagram of an Induction motor is very useful to study its performance under all operating conditions. The construction of the circle diagram is based on the approximate equivalent circuit shown below. It is the diagrammatic representation of the performance of the induction motor. The circle diagram provides the information about the power output, …

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