Whenever there is a rotation in a DC generator, the armature produces an EMF between its terminals. Now we derive the EMF equation of a DC generator i.e. the expression of that induced EMF in … Read more
Definition DC Generator DC generator is a moving type machine which converts mechanical energy into DC electrical energy. Whenever a conductor moves in a magnetic field there is an induced EMF across the conductor according … Read more
The working principle of a dc generator depends on the phenomenon, “when an electrical conductor moves in a magnetic field then the field induces an emf across the conductor.” Hence it is essential to have … Read more
There are three fundamental characteristics of a DC generator. No Load Characteristic of DC Generator We refer to the no-load characteristic, also like the open circuit characteristic or magnetic characteristic. When we do not connect … Read more
No Load Characteristic of Series DC Generator We also call the no-load characteristic of a DC series generator as the open-circuit characteristic of the generator. In a dc series generator, all the field, armature, and … Read more
No Load Characteristics of Self Excited DC Shunt Generator The no-load characteristic of a self excited dc shunt generator is similar to that of a separately excited dc generator. In that case, we have to … Read more
No Load Saturation Characteristics of a Separately Excited DC Generator Here, we measure the terminal voltage of a no-load separately excited dc generator for various fields currents. We control the field current by a rheostat … Read more
There are mainly two types of dc compound generator. These are long shunt and short shunt. For more information for these two types of dc generator please check the post types of dc generator. Both … Read more
A DC generator has the following essential parts. Magnetic Frame or Yoke Pole Cores and Pole shoes Field Coils Armature Core Armature Windings Commutator Carbon Brushes Magnetic Frame or Yoke The outer cover frame of … Read more
Before going to the actual discussion, we need to know some related terms of the armature winding. Pole Pitch It is the distance on the armature periphery between two adjacent poles. We usually measure it … Read more