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transformer

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 exciting current and flux graph

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

active vs passive components

Difference between Active and Passive Components

In this post, we will discuss the difference between Active and Passive components. We can differentiate active & passive components on the basis of the … Read more

Dry Type Transformers: Types and Applications

What is a Dry Type Transformer? A dry-type transformer does not use any liquid for its cooling and insulation. An oil-filled transformer uses 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 Application 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

equivalent circuit of an ideal transformer

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

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