Need of Energy Conservation In Induction Motor

Need of Energy Conservation In Induction Motor Q. Explain the necessity of energy conservation in electrical motors. India is a growing economy and the economic growth of any country largely depends on industrialization and energy consumption. The growing cost of energy due to limited stock of energy sources calls for power saving at each possible … Read more

Uses of Dial Indicator

Uses of Dial Indicator Q. Explain the use of : Dial Indicator By this indicator the shape (whether true or damaged) of various rotating parts of machine such as shafts, rotors, commutators are checked.  These consists of system of interlink livers / Gear wheels.  By this the small moments are magnified to enable to read … Read more

Hot Dip Method of Varnishing for a Transformer

Hot Dip Method of Varnishing for a Transformer Q. Explain the hot dip method of varnishing for a transformer. Vacuum impregnation is carried out in a vacuum impregnation plant; which consists of a double jacketed vacuum impregnating chamber.It is having atop removing cover. There is separate varnished storing tank. A compressor cum vacuum-exhauster which can … Read more

Properties of Good Transformer Oil

Properties of Good Transformer Oil Q. State and explain any four properties of good transformer oil.  The properties of good transformer oil or mineral oil are recommended by IS 335-1963. To maintain the properties. IS 1866-1961  is referred. Usually mineral oil grade B is used for switchgears, transformers. It should posses the following properties :  … Read more