Supply Systems Articles: Electric Supply System: The conveyance of electric power from a power station to consumers’ premises is known as Electric Supply System. An electric supply system consists of…

Overvoltage Protection Articles: Voltage Surge or Transient Voltage: A sudden rise in voltage for a very short duration on the power system is known as a Voltage Surge or Transient…

Symmetrical Fault Analysis Articles: Introduction to Symmetrical Fault in Power System: Introduction to Symmetrical Fault in Power System devoted to abnormal system behavior under conditions of symmetrical short circuit (symmetrical…

Symmetrical Components Articles: Symmetrical Component Transformation: Symmetrical Component Transformation is given by a  set of three balanced voltages (phasors) Va,Vb,Vc is characterized by equal magnitudes and interphase differences of 120°.…

Load Flow Studies Articles: One Line Diagram of the 4 Bus System: A power system comprises several buses which are interconnected by means of transmission lines. Power is injected into…

Inductance and Resistance Articles: Definition of Inductance of Transmission Line: The formula for definition of inductance of transmission line is as follows: Voltage induced in a circuit is given by…

Overvoltage Articles: Simpson Theory of Lightning: The factors that contribute to the formation or accumulation of charge in the clouds are too many and uncertain. But during thunderstorms, positive and…

High Voltage Testing of Electrical Apparatus Articles: Classification of High Voltage Testing Methods: Classification of High Voltage Testing Methods are divided into two groups: Power Frequency Withstand Voltage Impulse withstand…