Parts of a transformer
The transformer facilitates the delivery of power electric energy at minimum power loss. The basic parts of a transformer are the core, the primary winding, and the secondary winding. Apart…
K-factor rated transformers
What are K-factor rated transformers? K-factor rated transformers are capable of withstanding the heating effects caused by harmonic load currents. They are specially designed for non-linear harmonics generating loads. It…
What is magnetization current in a transformer?
A certain amount of current is drawn by a transformer from the source connected to it primary even when no load is connected to its secondary. A part of this…
Magnetization inrush current in a transformer
Transformer inrush current or magnetization inrush current is a transient input current drawn by a transformer during its energization. Depending on several factors, the magnitude of the magnetization inrush current…
Transformer kVA calculator – Based on load
Whenever the available AC source voltage differs from the load voltage, we use transformers to increase or decrease the voltage levels. The calculation of kVA rating is crucial while sizing…
Transformer noise (Humming sound of transformers)
Noise is an unpleasant, unwanted and annoying sound. Transformer noise, quite commonly known as the ‘humming sound or buzzing sound’ of transformer, is one of the major problems with large…
Open circuit test & Short circuit test in transformers
Open circuit test and short circuit test are conducted to determine the core loss, copper loss, and equivalent circuit parameters of a transformer. In this article, in addition to the…
Equivalent circuit and Phasor diagram of a transformer
In order to understand the equivalent circuit of a transformer, we suggest you read Ideal transformer first and then come back and continue from this point. What is an equivalent…
Ideal Transformer
A transformer is an AC device used to step down or step up voltages. To visualize the current flow and other circuit properties of a transformer, certain assumptions are made,…
Types of electric transformers
You might have come across various types of transformers in your daily life either knowingly or unknowingly. This article illustrates various transformer types. Before getting into classification, here is a…