power losses in transformers

(i) Copper loss is the energy lost due to heating of copper coils of transformers. (ii) Iron loss due formation of induced current in the iron line resulting in lot of heat. (iii) Leakage of magnetic flux. All flux linked with primary may not be linked with secondary...

For a given power requirement, one has the choice of the relative values of I r m s and E r m s . That is, for the product to be a constant, we can choose a relatively large current I and a relatively small potential difference v or just the reverse. In an electric power distrib..

You must have seen that when substances like wood, wax, coal, oil, etc. are burnt, they seem to disappear, or leave a very small quantity of residue. It looks as if the mass is much lesser. Well, the loss of some mass of these substances is only apparent. As per the Law of conservat..

You must have seen that when substances like wood, wax, coal, oil, etc. are burnt, they seem to disappear, or leave a very small quantity of residue. It looks as if the mass is much lesser. Well, the loss of some mass of these substances is only apparent. As per the Law of conservation of..

Tidal Power - The tides are formed due to the gravitational force of attraction between the earth, sun and moon. During high tides sea water is trapped in a reservoir, and released later to drive turbines, which in turn produces electricity. The block diagram given below illustrates the h..

Potential energy is the energy possessed by an object by virtue of its position or condition. Kinetic energy = 1/2 mv 2 Potential energy = mgh Law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another. Powerh..

Summary - Machine is a device that is used to multiply force, or to gain speed, or to change the direction of a force, or transform energy. Levers, pulleys, inclined plane and gears are some of the examples of simple machine..

Domestic Electric Circuit - Electric power is usually generated at places which are far from the places where it is consumed. Distribution of Electricity from Grid The power is transmitted over long distances at high voltage to minimize the loss of energy during transm..

This disease is characterised by bleeding gums, loosening of teeth, muscular and joint pain, along with general weakness, fatigue, loss of weight and poor healing power..

>Average power consumed/cycle For reducing low frequency alternating current, choke coils with laminated soft iron cores are used, and for reducing high frequency alternating currents, air cored chokes are used. A transformer is an electrical device, which is used for changing a..