Continuous Electro-mechanical energy conversion devices are known as Electrical machines. Which is a reversible process. Electrical machines are machines that are either used to transfer or the generation of Electrical power. These may be low-power or high-power devices(in mV or kV). Here I am discussing the high-power devices in this article. Types of Electrical Machines: … Read more
What are the Geometrical neutral axis (GNA) and Magnetic neutral axis (MNA)? The Geometrical Neutral axis (GNA) bisects the angle between the two poles of a machine. Whereas the Magnetic Neutral axis (MNA) is the perpendicular axis on the magnetic flux line. Also machine has a “Direct (D) axis” and “Quadrature (Q) axis”. What is a … Read more
A rotating machine has an essential part known as Armature winding. Generally, this is responsible for making a rotating magnetic field in a machine. As a result, it provides back emf to the supply. This armature winding is classified into two types. One is Lap winding and another is Wave winding. These have their special … Read more
Firstly we need to know about basic things like Coil, Pole Pitch, commutator pitch, and Span for a better understanding of these words in the DC machine. What is the coil? The coil of the DC machine uses copper (mainly enameled copper). Some of the machines have a single turn and some have Multi turns … Read more
Generally, a rotating machine has two parts in common one is a stationary part and another is a rotating part. The stationary part of the DC (Direct Current) machine contains several components of the machine such as field winding, pole shoes, bearings, etc. Whereas the rotating part of the DC machine has armature winding, armature … Read more
Open coil winding and closed coil winding are the types of Armature windings. Armature windings are the non-salient pole type and usually are symmetrically distributed in the slots of the complete circumference of the armature. Basically two types of armature windings according to the degree of closure produced: Open Coil Winding: Open coil windings are … Read more
In the case of DC generators – Mechanical Input is applied to the shaft/rotor (i.e, Armature) and Electrical output is collected from Armature itself. In the case of DC Motors – Electrical Input is applied at the Armature terminal and mechanical output at the rotor is received(i.e, Armature). Therefore armature is the center for electromechanical … Read more
For an electrical and electronics engineering student here are some tips for Speed control of the DC motor. if you are looking for this, then you are at the right place. By the end of this article, you will be able to know everything about the Speed control of the DC machine. So be there … Read more
Synchronizing two different power sources is essential in various electrical and power systems to ensure a seamless and stable supply of electricity. The need for synchronization arises in situations where multiple power sources, such as generators or power grids, are connected to a common electrical system. Here are some key reasons for synchronizing two different … Read more
Electromagnetic armature winding creates magnetic poles, which can be concentrated as a single north and south pole in a concentrated winding configuration. However, in a distributed winding configuration, the armature has multiple north and south poles. Concentrated Winding: According to concentrated winding, the coil turns are concentrated in one place. So no production of the … Read more