For instance, an electric motor can be started or stopped by turning on or off a switch. The electrically operated machines have simple and convenient starting, control and operation. Similarly, electrical energy can be converted into light (e.g. For example, if we want to convert electrical energy into heat, the only thing to be done is to pass electrical current through a wire of high resistance e.g., a heater. It can be easily converted into other forms of energy. Electrical energy is a very convenient form of energy. Electrical energy is superior to all other forms of energy due to the following reasons : (i) Convenient form. In fact, the advancement of a country is measured in terms of per capita consumption of electrical energy. The survival of industrial undertakings and our social structures depends primarily upon low cost and uninterrupted supply of electrical energy. This has given electrical energy a place of pride in the modern world. The present-day advancement in science and technology has made it possible to convert electrical energy into any desired form.
In this chapter, we shall focus our attention on the general aspects of electrical energy.ġ.1 Importance of Electrical Energy 1.2 Generation of Electrical Energy 1.3 Sources of Energy 1.4 Comparison of Energy Sources 1.5 Units of Energy 1.6 Relationship Among Energy Units 1.7 Efficiency 1.8 Calorific Value of Fuels 1.9 Advantages of Liquid Fuels Over Solid Fuels 1.10 Advantages of Solid Fuels Over Liquid Fuelsġ.1 Importance of Electrical Energy Energy may be needed as heat, as light, as motive power etc. The modern society is so much dependent upon the use of electrical energy that it has become a part and parcel of our life. Energy exists in different forms in nature but the most important form is the electrical energy.
The greater the per capita consumption of energy in a country, the higher is the standard of living of its people. As a matter of fact, there is a close relationship between the energy used per person and his standard of living. The availability of huge amount of energy in the modern times has resulted in a shorter working day, higher agricultural and industrial production, a healthier and more balanced diet and better transportation facilities. It is practically impossible to estimate the actual magnitude of the part that energy has played in the building up of present-day civilisation. Many functions necessary to present-day living grind to halt when the supply of energy stops. Nergy is the basic necessity for the economic development of a country.
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J| Autor: Engr AttaurRehman | Categoria: Engineering, Electrical Engineering, Electronic Engineering, Control Systems Engineering, Grid Computing, Software Engineering, Computer Engineering, Power Electronics, Power Quality, Electronics, Power System, Industrial Engineering, Electrical, Electrical and Electronics, Electric Power Systems, Power Electrical Engineering, Power System Protection Engineering, Substation automation, Power, Wind Power, power system Automation, Solar Power, Electrical Drives, High Voltage Substation Design, Hybrid Power from solar and wind energy, Substation Automation Systems (IEC61850 Protocol), Electronics Engineering, solar PV power plants, Thermal Power Plants, Electrical Substation Design, Electrical and Computer Engineering (ECE), Electrical and Computer Engineering, Software Engineering, Computer Engineering, Power Electronics, Power Quality, Electronics, Power System, Industrial Engineering, Electrical, Electrical and Electronics, Electric Power Systems, Power Electrical Engineering, Power System Protection Engineering, Substation automation, Power, Wind Power, power system Automation, Solar Power, Electrical Drives, High Voltage Substation Design, Hybrid Power from solar and wind energy, Substation Automation Systems (IEC61850 Protocol), Electronics Engineering, solar PV power plants, Thermal Power Plants, Electrical Substation Design, Electrical and Computer Engineering (ECE), Electrical and Computer Engineering BAIXAR PDF
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