Electrical Substation: Equipment, Types, Components & Functions
An electrical substation is an integral part of a generation, transmission and distribution system. A substation can interrupt or establish … Continue Reading
Transformer
Transformer Bushing Types : RIP Bushing vs OIP Bushing
Transformer bushing types are categorized based on their material, manufacturing, and design mainly into the following types: OIP (Oil-Impregnated Paper) … Continue Reading
Current Transformer (CT) – Construction and Working Principle
A current transformer (CT) is a type of transformer that is used to measure AC current. It produces an alternating current … Continue Reading
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
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