Practical Transformer on No Load
Please read Ideal Transformer and Practical Transformer before continuing. Consider a practical transformer on no load i.e., secondary on open-circuit as … Continue Reading
Transformer
Why Current Transformer (CT) Seconday Should not be Open ?
Amazed why secondary of current transformer should not be open? If it is left open it may destroy the current … Continue Reading
Ideal Transformer and Practical Transformer
Ideal Transformer An ideal transformer is one that has no winding resistance no leakage flux i.e., the same flux links … Continue Reading
Properties of Good Transformer Oil
Even though the basic functions of the oil used in transformers are heat conduction and electrical insulation, there are many other properties which … Continue Reading
Percentage Impedance of Transformer and Its Calculation
The percentage impedance of a transformer is marked on most nameplates – but what is it and what does the Z% figure … Continue Reading
Comparison between Induction Motor and Transformer
An induction motor may be considered to be a transformer with a rotating short-circuited secondary. The stator winding corresponds to … Continue Reading
Introduction to Gas Insulated Substations / Switchgears (GIS)
Gas-insulated substations (GIS) have been used in power systems over the last three decades because of their high reliability, easy … Continue Reading
Core Type and Shell Type Transformers
Depending on the type of construction used, the transformers are classified into two categories. Core type Transformer Shell type Transformer Difference … Continue Reading
Substation Earthing System Design
We have already given an introduction to substation earthing system in an article published earlier. Today we are going to … Continue Reading
Transformer Oil Testing : Video Training
Transformer oil testing is just like a blood test in the human body. A blood test provides a doctor with … Continue Reading