What is Hunting or Surging or Phase Swinging ? When a synchronous motor is loaded, there exists a phase angle between rotor and field 'α'. When load increases slowly, angle 'α' also increases so that torque prod…
Electrical and Electronics Engineering is one among various engineering fields. It is an engineering that is concerned with the study and design of various electrical and electronics equipment, machinery, circuits, and many more…
In a single-phase as well as three-phase transformer the windings are placed on the core structure which is made up of a laminated steel core. This core structure which supports the two windings of the transformer is placed insid…
What is Leakage Flux in a Transformer ? We know that all the flux linked with primary winding is also linked with the secondary winding. But, in the actual transformer the total flux created does not link with the primary and se…
Why Sumpner's Test or Back to Back Test? For a transformer, the temperature rise is an important factor to be noted before making it into operation. The temperature of a transformer changes in proportion to the load. Because…
Electricity generated at all the power plants is alternating i.e., ac, in order to generate direct current i.e., dc, a commutator is used to convert the generated ac supply into dc supply. Hence, an electrical generator with a co…
The performance (efficiency, regulation, losses) of a transformer is best judged if the following four parameters of its equivalent circuit are known, The equivalent resistance R 01 is referred to as primary, and the equivalent…
