DC Motors , Electro mechanical System, lecture# 5

Electrical motors are everywhere around us. Almost all the electro-mechanical movements we see around us are caused either by a AC or a DC motor. Here we will be exploring DC motors. This is a device that converts DC electrical energy to a mechanical energy.

Book        Electro mechanical System, lecture# 5
Edition           (4th) latest
Type         ppt
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Synchronous Machines, Electro mechanical System, lecture#23 ppt

A synchronous machine is an ac rotating machine whose speed under steady state condition is proportional to the frequency of the current in its armature.

Book             Electro mechanical System, lecture#23
Edition          latest
Type              ppt
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Auto Transformer, Electro mechanical System

An auto transformer (sometimes called auto step down transformer) is an electrical transformer with only one winding. The "auto" (Greek for "self") prefix refers to the single coil acting alone and not to any kind of automatic mechanism.

Book         Auto Transformer
Author        Aamir Sharif
Type         ppt
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