Why Transformer does not work on DC supply?
Did you ever think about what will happen to a transformer on dc supply? In this article, you will learn … Continue Reading
Transformer
Working Principle of Transformer
A transformer is a static piece of equipment used either for raising or lowering the voltage of an AC supply … Continue Reading
Star-Star (Y-Y) Connection of Three Phase Transformers | Benefits and Challenges
Learn about the advantages and disadvantages of star-star (Y-Y) transformer connections. Discover key considerations to optimize performance and ensure reliable power distribution.
Parallel Operation of Single Phase Transformers
By parallel operation of single-phase transformers, we mean two or more transformers are connected to the same supply bus bars on … Continue Reading
Power Transformer Testing Methods – Type, Routine & Special Tests
An electrical power transformer has to go through a number of transformer testing procedures for confirming its specifications and performances. … Continue Reading
Why Transformers are Rated in kVA, Not in kW?
Transformer rating is expressed in kVA, not in kW. Rating of a transformer or any other electrical machine reflects its load carrying … Continue Reading
Insulation Resistance Test (IR Test) or Megger Test
Insulation Resistance or IR Test is carried out by maintenance engineers to ensure the healthiness of the overall insulation system … Continue Reading
Three Phase Transformer Interconnections
The phase windings of three-phase transformers are interconnected to give a three-phase, three-or four-wire supply through three different modes of … Continue Reading
Effects of Voltage and Frequency Variation on Transformers
The effects of voltage and frequency variation on the transformer is discussed in this article. Usually, power transformers are not … Continue Reading
Current Transformers – Windings and Rated Insulation Levels
A current transformer is an instrument transformer in which the current ratio is within the specified limit. The primary winding … Continue Reading