Showing posts with label DC Machines. Show all posts
Showing posts with label DC Machines. Show all posts

Condition for Maximum Efficiency of DC Machine

We have discussed about  construction & working of DC machine.  In this article  condition for maximum efficiency in DC machine will be...

Losses In DC Generator (DC Machines)

In the previous articles we discussed about DC generator working , Voltage equation of dc generator . Efficiency is a very important speci...

Poor commutation | Sparking in DC Machines

Sparking in DC Machines at  Brushes Poor commutation and sparking are caused by distortion of main field flux. The sparking at the brus...

Types of D.C Machines [DC Generators & DC Motors]

Types of D.C Machines [DC Generators & DC Motors] A DC machine is an electromechanical energy conversion device. It requires magneti...

Commutation In DC Machine [Generator or Motor]

Commutation Definition This is post about commutation in dc generator and dc motor. The reversal of current in the armature winding by ...

Compensating Windings and Interpoles in DC Generator

Compensating Winding and Interpoles in DC Generator In DC compound machine setup by armature current opposes magnetic field flux, this i...

Armature Reaction In DC Machines

Armature Reaction In DC Machines [Motor & Generator] What is  Armature Reaction? The effect of magnetic field set up by the arma...

Differences Between Lap Winding & Wave Winding

Let us discuss on Comparison Between Lap Winding and Wave Winding. All the major differences between lap winding & wave winding provi...

Armature Winding of A DC Machine [ Lap & Wave Winding ]

Armature Winding Of A DC Machine Based on type of winding connections we classified  armature winding of a dc machine into two types.T...

Why the Stator [Yoke] is Not Laminated in DC Machines?

Usually laminations are provided to reduce the eddy current losses taking place in the magnetic materials used to provide path for the flu...

Commutator | Commutation In DC Machine [Generator & Motor ]

Commutation in DC Machine or Commutation in DC Generator or Motor The commutator is a split ring of larger size with large number of sp...