Category: Utilization of power

Induction heating is based on the principle of Faradays law of mutual induction. Induction heating process makes use of currents induced by electromagnetic action in the material to be heated (ie transformer principle). There...

It is a method of electric heating in which charge is heated with the help of heat produced from ARC. ARC : When the electric supply is given to two electrodes separated in air,...

Electric heating is a process in which electrical energy is converted to heat energy. Common applications include space heating, cooking, water heating and industrial processes. Heat can be produced by, Circulation of current through a resistance Production of an arc between two...

Lightning arrestor is connected between the line and earth. It is a protective device which conducts the high voltage surges (due to both direct and indirect stroke) on the power system to the ground...

Lightning surges may cause serious damage to the equipments in the power system, either by direct or by strokes on the transmission lines that reach the equipment as travelling wave. It is necessary to...

A sudden rise in voltage for a very short duration on the power system is known as voltage surge.The overvoltage on a power system may be broadly divided into two main categories. Internal Causes...

Busbars in the generating stations and sub stations form a link between the incoming and outgoing circuits.If a fault occurs in bus bar create damage and disruption of supply.The bus bar faults are generally...

Differential protection system or Merz-Price circulating current method Differential protection of a 3 phase delta/delta transformer used for the protection against phase to earth and phase to phase fault. Note that CTs on the...