Principles of Power System Notes

1. INTRODUCTION


Energy is the basic necessity for the economic
development of a country.
Many functions necessary to present-day
living grind to halt when the supply of energy
stops. It is practically impossible to estimate the
actual magnitude of the part that energy has
played in the building up of present-day
civilisation. 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. As a
matter of fact, there is a close relationship between
the energy used per person and his standard
of living. The greater the per capita consumption
of energy in a country, the higher is the
standard of living of its people.
Energy exists in different forms in nature but
the most important form is the electrical energy.
The modern society is so much dependent upon
the use of electrical energy that it has become a
part and parcel of our life. In this chapter, we shall
focus our attention on the general aspects of electrical
energy.
Introduction