Design of commutator and brushes
The Commutator is an assembly of Commutator segments or bars tapered in…
Design of Armature
The armature winding can broadly be classified as concentrated and distributed winding.…
Selection of number of poles
As the armature current increases, cross sectional area of the conductor and…
Carter’s Coefficient
Carter’s gap expansion coefficient Where Kgs is called the Carter’s gap expansion…
Magnetic Circuit Calculations:
Normally magnetic circuit calculations involve two types of problems. In the first type of…
DC Motors
Industrial applications use direct current motors because the speed-torque relationship can be…
Factors Effecting the Resistivity of Electrical Materials
Factors effecting the resistivity of electrical materials are listed below - 1. Temperature. 2. Alloying.…
High Resistivity or Low Conductivity Conducting Material
Materials having high resistivity or low conductivity are very useful for some electrical engineering…
Low Resistivity or High Conductivity of Conducting Material
Material having low resistivity or high conductivity are very useful in electrical engineering for manufacturing electrical…
