Why is the core of a power transformer grounded?
Transformer is a static piece of equipment and it has primary and secondary winding. The low voltage winding has few turns of wire wound around … Read more
transformer
What is the disadvantage of large exciting current in a transformer?
What is Exciting current? The exciting current in the transformer produces the magnetic flux in the core. When energizing transformer at no load, transformer draws … Read more
Difference between no load, exciting, and leakage current in transformer
The no-load current of a transformer is the vector sum of the exciting current and core loss current of the transformer. Why Losses in a … Read more
Difference between Active and Passive Components
In this post difference between Active and Passive components are thoroughly explained. The active and passive components are categorized considering various functionality of the components. … Read more
Dry Type Transformers: Types and Applications
Dry Type Transformer A dry type transformer does not use any liquid for its cooling and insulation. A oil filled transformer uses a mineral insulating … Read more
Effects of Harmonics on Transformers
The transformer does not generate harmonics.The transformer has primary and secondary winding which are inductive in nature. The inductive load draws current linearly with … Read more
Why does not Transformer Work with DC Supply?
Therefore,The transformer functions in the Faraday’s Law of electromagnetic induction. When AC is applied to primary of the transformer EMF induced in the primary which … Read more
Harmonic Restraining in Differential Protection
The differential relay is used for protection of transformer ,alternator and large rating HT motor. The differential protection scheme is also known as a zone … Read more
Single Phase Transformer and Applications of Single Phase Transformer
Transformer transforms voltage from one level to other level without changing the power and frequency. Transformer is a static electrical equipment and it does not … Read more
Ideal Transformer-Properties,Phasor Diagram,Working
What is an Ideal Transformer? A transformer which is free from all the losses is called an ideal transformer. It has zero copper loss, zero … Read more