A transformer is a static device, that transfers electrical energy from one circuit to another without any physical connection. It works on the principle of magnetic induction, which induces emf in another circuit by means…
In the last article, we have seen about construction and working of a current transformer . A current transformer is a special-purpose transformer used to measure high currents in transmission and distribution systems. But …
A phase-shifting transformer is a special type of transformer used to control active or real power flowing through a multi-network power system. It is used to stabilize power flow and balancing the loads in the power system…
Generally, transformers are used to transfer generated voltage at the generating stations to the various loads. Transformers do this by stepping up the voltage at generating stations and transfers this high voltage to the l…
It is important to monitor current and voltages at the substations and generating stations which are at high values. In dc circuits it is easy to measure large currents by adding suitable shunts to the low range ammeters. W…
A transformer is a stationary ac machine used to raise or reduce the voltage levels. There are different types of transformers based on application. A transformer can be single-phase or three-phase. In this article let us s…
Necessity of Transformer Cooling : When the transformer is working or on-load or supplying or delivering current there will be some iron loss and copper loss takes place continuously. If the transformer works continuously…
Normally generation of power is usually at 3-phase from 11kV to 33kV. Transmission of generated power to the load centers is accomplished at higher voltages of 132kV to 400kV ( or 700kV ). For transmitting ( sending end ) t…
In the no-load test of a transformer, the secondary winding of the transformer is kept open without connecting any load. The primary of the transformer is connected to the ac supply and evaluating the behavior of the transf…
