The equivalent circuit of any device can be quite helpful in predetermination of the behaviour of the device under various conditions of operation and it can be drawn if the equations describing its behaviour, are known. If any electrical device is to be analysed and investigated further for suitable modifications, its appropriate equivalent circuit is necessary. The equivalent circuit for [...]
Here is an essay on ‘Transformer’ for class 9, 10, 11 and 12. Find paragraphs, long and short essays on ‘Transformer’ especially written for school and college students. Essay on Transformer Essay contents: Essay on the Meaning of Transformer Essay on the Operating Principle of Transformer Essay on Transformer as Two Port Network Essay on the Effects of Voltage and [...]
Depending upon the type of construction used, the transformers are classified into two categories viz.: (i) Core type, and (ii) Shell type. Depending upon the type of service, in the field of power system, they are classified as: (i) Power transformers, and (ii) Distribution transformers. 1. Core Type and Shell Type Transformers: In core type construction, as shown in Fig. [...]
The following article will guide you about how to determine transformer efficiency. Meaning of Transformer Efficiency: The rated capacity of a transformer is defined as the product of rated voltage and full-load (rated) current on the output side. The power output depends upon the power factor of the load. The efficiency (η) of a transformer, like that of any other [...]
The transformer is very simple in construction and consists of magnetic circuit linking with two windings known as primary and secondary windings. Besides magnetic circuit and windings it consists of a suitable container for the assembled core and windings, such as a tank, a suitable medium for insulating the core and windings from its container such as transformer oil, suitable [...]
Consider a transformer shown in Fig. 10.13 having primary and secondary windings of resistances R1 and R2 and reactance X1 and X2 respectively. The impedance of primary winding is given by Z1 = R1 + j X1 and impedance of secondary winding is given by Z2 = R2 + jX2. The phasor diagrams of above transformer on: (i) Pure resistive, [...]
In this article we will discuss about the amorphous core transformer, explained with the help of a suitable diagram. The role of a transformer is to convert high-voltage electricity supplied from a power station into lower-voltage electricity for safe use. Transformers operate 24 hours a day, seven days a week during which time they undergo constant losses of 2 to [...]