Acidity Test of Transformer Oil
The transformer oil is used for insulation and cooling purposes in a transformer. The acidity Test of Transformer oil is a crucial test for analyzing the oxidation … Read more
Dissolved Gas Analysis (DGA) Test of Transformer Oil
The dissolved gas analysis (DGA) test of transformer oil is a tool to detect dissolved gases in the oil for diagnostics to detect incipient faults. … Read more
Derivation of Eddy Current Loss Formula
What is eddy current? When the conductor is placed in the varying magnetic field, the localized current starts flowing in the conductor, which is called … Read more
What is Electrical Resistance? Definition and Unit of Resistance
Definition of Resistance The property of the substance to resist the flow of electric current through it is known as resistance. The unit of resistance … Read more
Temperature Coefficient of Resistance- Formula & Solved Problems
The temperature coefficient of resistance is the parameter that shows the relationship between the variation of resistance with an increase in temperature. The resistance of … Read more
Electron Volt or eV | Unit of Energy
In atomic and nuclear physics, the electron Volt or eV is used as a unit of energy. Joule is also a unit of energy, but … Read more
Electric Current and Theory of Electricity
What is an Electric Current? The electric current flows in the circuit if a potential difference exists. The potential difference is the pressure that causes … Read more
Measurement of Insulation Resistance
What is Insulation Resistance Test or IR Test? The Insulation Resistance Test measures the Insulation resistance of a device under test, while phase and neutral … Read more
How to Calculate NGR Resistance Value?
What is NGR? NGR-Neutral Grounding Resistance. NGR limits the ground fault current to the equipment’s safe operating current range to protect all the electrical equipment. … Read more
Transformer Basics & Its Working Principle
What is a Transformer? The transformer is a static device that transfers electrical energy from one circuit to another circuit without altering the frequency. The … Read more