Methods Of Improving Commutation
There are two practical ways by which commutation may be improved. These methods are, 1. Resistance commutation and 2. E.M.F. commutation. 1.1…
Speed Control Of D.C. Shunt Motor : Flux Control
Speed Control of D.C. Shunt Motor (Part1) 1. Flux Control As indicated by the speed equation, the speed is inversely proportional to…
Applications Of D.C. Motors
Instead of just stating the applications, the behaviour of the various characteristics like speed, starting torque etc., which makes the motor more…
Armature Voltage Control Method Or Rheostatic Control Of Dc Motor
Speed Control of D.C. Shunt Motor (Part2) 2. Armature Voltage Control Method or Rheostatic Control The speed is directly proportional to the…
Characteristics Of D.C. Shunt Motor
i) Torque - Armature current characteristics For a d.c. motor T α Φ Ia For a constant values of Rsh and supply…
Construction Of A Dc Machine And Working Of Dc Motor
As stated earlier, whether a machine is d.c. generator or a motor the construction basically remains the same as shown in the…
Series Generators
When the field winding is connected in series with the armature winding while supplying the load then the generator is called series…
Working Principle Of 1-Phase Induction Motor
For the motoring action, there must exist two fluxes which interact with each other to produce the torque. In d.c. motors, field…