Machine

Shaded Pole Induction Motor

This type of motor consists of a squirrel cage rotor and stator consisting of salient poles i.e. projected poles. The…

7 years ago

Concept Of Armature Reaction

To understand the concept of armature reaction, consider a two pole d.c.generator. For simplicity we will assume that the brushes…

7 years ago

Winding Pitches

Now we will consider the definitions of different types of winding pitches, required in the design of the armature winding.…

7 years ago

D.C. Compound Motor

The compound motor consists of part of the field winding connected in series and part of the field winding connected…

7 years ago

Reduction Of Effects Of Armature Reaction

In order to reduce the effect of armature reaction following methods are used. 1) The armature reaction causes the distortion…

7 years ago

Load Characteristics Of D.C. Series Generator

In case of series generator, Ia = Ise =  IL As load current increases,  Ise increases. The flux ? is directly proportional to.…

7 years ago

Load Characteristics Of D.C. Compound Generator

The characteristics depends on whether generator is cumulatively compound or differentially compound generator. In cumulatively compound, ?2r = ?2r + ?2r. As…

7 years ago

Types Of D.C. Generator

The magnetic field required for the operation of a d.c. generator is produced by an electromagnet. This electromagnet carries a…

7 years ago

Characteristics Of Separately Excited D.C. Generators

The characteristics is separately excited d.c. generator are divided into two types, 1) Magnetization   and         2) Load characteristics. 1.1 Magnetization…

7 years ago

Effects Of Armature Reaction

The various effects armature reaction can be summarised as 1) The armature reaction always results in reduction of generated e.m.f.…

7 years ago