Electrical Bushings – Types, Purpose and Construction with Diagrams
Definition According to IEEE/ANSI Std. an electrical bushing is defined as “an insulating structure, including a through conductor or providing a central … Continue Reading
Transformer
Air Break Switch – Types and Uses
An “air break switch’ is a switchgear device that uses air as the dielectric. Air Break Switches (ABS) are widely … Continue Reading
What are Protective Relays? | Types and Working
What is a Protective Relay? The protective relay was invented more than 160 years ago. During the last 60 years, … Continue Reading
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
Working Principle of Transformer
A transformer is a fundamental electrical device that transfers electrical energy between two or more circuits through the principle of … 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