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…
A transformer is a static device used to transfer electrical energy from one circuit to another circuit by mutual induction. The transformers are classified depending upon the service requirement for different purposes like…
In the last article, we have seen the reasons and conditions for the parallel operation of two or more transformers. Now let us see the parallel operation of single-phase transformers and how the load is shared among them.…
When a transformer as to supply an excess of load ( increased load demand ) than the existing load, there are two alternatives, To achieve the power requirement to the increased load the old transformer is replaced by anoth…
It is important to calculate the efficiency of any device. The efficiency of a device determines the performance of how efficiently the device is operated i.e., the capability of a device to give any amount of output energy…
Since the transformer is a static machine it doesn't contain any moving or rotating parts as compared to an induction motor. So there are no friction and windage losses due to bearings and due to air resistance. Hence, …
