Difference between specific electric loading and specific magnetic loading are describe in this article . From this article we will learn about the advantages and disadvantages of specific electric loading and specific magetic loading . we will learn about the types of magnetic material like paramagnetic material , faramagnetic material etc.
Difference between Specific Electric loading and Specific Magnetic loading
The terms specific electric loading and specific magnetic loading as applied to an electromagnetic machine. we will study about the difference between specific electric loading and magnetic loading with respect to their advantages and disadvantages. Now we are studying about specific magnetic loading advantages and disadvantages
Advantages and disadvantages due to Higher Specific magnetic Loading
|Advantages of Specific Magnetic loading||Disadvantages of Specific Magnetic loading|
|1.||Lower armature- copper loss||Higher saturation and draws higher Amp turns|
|2.||Reduction in volume||Higher Iron losses|
|3.||Reduction in size||Increased field current losses in sync. And DC machines|
|4.||Reduction in weight||Higher magnetizing current and poor PF in induction machines.|
|5.||Lower material cost||Higher flux densities in tooth and core.|
|6.||Lower overall price||Increased temperature.|
|7.||Higher stability in synchronous machines||Increased magnetic hum and noise|
|__||Reduced leakage reactance and hence higher currents during short circuits|
Specific Electric Loading Advantages and Disadvantages
It is defined as the total number of ampere conductors on the armature per unit circumference of armature
Where 1a= Armature current (A)
Za= No. of armature conductor
D= diameter of armature (m)
Advantages and disadvantages due to higher specific Electric Loading
|Advantages of Specific Electric loading||Disadvantages of Specific Electric loading|
|1.||Reduction in volume||Higher Armature-copper losses|
|2.||Reduction in size||Higher leakage Reactance and hence poor voltage Regulation|
|3.||Reduction in weight||Increased temperature.|
|4.||Lower material cost||Increase Armature- reaction AC and higher field current in DC and synchronous machines|
|5.||Lower overall price||Lower stability in synchronous|
This is basic difference between specific electric loading and and specific magnetic loading with respect to their advantages and disadvantages.
Magnetic Materials Introduction
All magnetic materials posses’ magnetic properties to a greater or a lesser degree. The magnetic properties of materials are characterized by their relative permeability. In accordance with the value of relative permeability, materials may be divided into three broad classes.
Types of Magnetic materials
1. Ferromagnetic Materials
The relative permeability of these materials is much greater than unity and these permeability values are dependent upon the magnetizing force.
2. Paramagnetic Materials
These materials have their relative permeabilities only slightly greater than unity. The value of susceptibility is thus positive for these materials.
3. Diamagnetic Materials
These materials have their relative permeability slightly less than unity. In both paramagnetic and diamagnetic materials, the value of permeability is independent of the magnetizing force.
When a ferromagnetic material is placed in a magnetic field, there is considerable distortion and, therefore, the force exerted is very large. This property makes ferromagnetic materials very useful for electrical engineering applications. Iron, nickel, cobalt, and many of their alloys are ferromagnetic. To these substances can be added certain other ferromagnetic alloys and compounds containing aluminum, chromium, manganese, copper and silver.
Hence these are difference between specific electric loading and specific magnetic loading . we will alos studied about the types of magnetic material and their application. If you will find any incorrect above please comment below.