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# Electrical Machines Tutorial

• ## Parallel Operations of Transformers

Parallel operations of transformers When we connect the primary windings of two transformers to a common supply voltage and the secondary windings…

• ## Torque-Slip and Torque-Speed Characteristics

Torque-Slip and Torque-Speed Characteristics The Torque-slip curve of an induction motor shows the variation of torque with the slip. We have If…

• ## Types of D.C Machine

Types of D.C Machine The magnetic flux in a d.c machine is produced by field coils carrying current. The production of magnetic…

• ## Working Principle of a Single Phase Induction Motor

Working Principle of a Single Phase Induction Motor Production of Rotating Field Consider two winding ‘A’ and ‘B’ so displaced that they…

• ## Equivalent circuit of an Induction Motor

Equivalent circuit of an Induction Motor Stator’s Equivalent Circuit: The stator model of an induction motor consists of a stator phase winding…

• ## Regulation and Efficiency of Transformer

Regulation and efficiency What is voltage Regulation? The term voltage regulation identifies the characteristic of the voltage change in the transformer with…

• ## Three Phase Induction Motors

Three phase induction motors Three – Phase induction motor is the most common and popular type of a.c motor used for industrial…

• ## Three-Phase Transformer

Three Phase Transformers The three-phase transformers are mainly of two types: Single unit three-phase transformer. Three unit three-phase transformer. Figure: Three phase…

• ## Types of Single Phase Induction Motors

Types of single phase induction motors The single-phase induction motor is started by using some methods. Mechanical methods are not very practical…

• ## Types of Three Phase Induction Motor Rotor

Types of three phase induction motor rotor There are two types of induction motor rotors: Squirrel-cage rotor or simply cage rotor. Phase…