Introduction to power system


 Introduction


The power system is a system which is used to save the electric power for different demands. it includes many elements that is connected together by special means to make the system able to achieve its purpose.


There are three main types of electrical systems that must be integrated to provide consumers with their demands:
                                                                          1 – Generation system.
                                                                          2 – Transmission system.
                                                                          3 – Distribution system.

Electric energy occupies the top grade in the energy hierarchy .it finds innumerable uses in home, industry, agriculture and even in transport.

 Advantages Of Electric Energy:


The facts that electricity can be transported practically instantaneously, is almost pollution free at the consumer level and that its use can be controlled very easily, make it very attractive as compared to other forms of energy.

The per capita consumption of electricity in any country is an index of the standard of living of the people in that country .


 Energy Sources:


If we go back a little in time, we will find that people tried to benefit of the natural resources – that differ from place to another due to its nature - to generate the electric power.
The first resource was the water, and then fossil fuels such as (coal, oil and gas) were used. But the natural resources are rare in some places; so it was important to find another source of electrical energy, the nuclear energy was this source.

The renewable energy sources are also used like: wind, tidal, geothermal and solar energy to overcome the pollution that is caused by fuel energy which is responsible for 25% of earth total pollution.


Main Elements Of The Power System:

          1Power plants.
          2Synchronous Generators.
5Bus bars.
          6Loads.

The following figure is a simple summary for the main elements:





Power System Structure


The following figure shows the power system structure. From this structure we find that there are different levels of voltage in the power system.In power system there are three voltage levels:

  1.  Generation level
  2.  Transmission level
  3.   Distribution level


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Ahmad Mohammad

Hi. I’m Designer of Mawsoo3a Blog. I’m Electrical Engineer And Blogger Specializing In Electrical Engineering Topics. I’m Creative.I’m Working Now As Maintenance Head Section In An Industrial Company.

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