This article describes the difference between a power transformer & distribution transformer. Power transformers and Distribution transformers are widely used in power systems for step-up and … Read more
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
The transformer draws no load current from the supply source when its secondary is open circuit.The no load current has two components of current- Magnetization … Read more
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
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
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
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
The HV and LV winding is wound around the central limb. The central limb carries the entire flux (Ф ). The flux (Ф ) divides into two equal part and thus each side limbs carries the half (Ф/2 ) of the total flux(Ф ). As a result, cross section area of the central limb is two times of the side limbs area.The arrangement of the winding around the central limb is as given below.
The maximum current that transformer can deliver to loads as known as a transformer rating. The voltage, maximum current delivery of the transformer and the … Read more
What is Voltage Regulation of a Transformer? Voltage regulation of transformer is defined as the percentage change in the transformer secondary voltage from no load … Read more
