Electric Current and Theory of Electricity
Electric current is the ratio of charge transferred in a given period. In other words, the rate of transfer of electric charge is the electric
Electrical
Measurement of Insulation Resistance
The measurement of insulation resistance is a key test used to check the condition of electrical insulation in equipment and wiring. By measuring how much
How to Calculate NGR Resistance Value?
Neutral Grounding Resistors (NGRs) play a critical role in electrical power systems by controlling fault currents and protecting equipment during ground faults. Proper calculation and
Working Principle and Basic Theory of Transformer Explained
A transformer is an essential electrical device that changes the voltage level of alternating current (AC) without altering its frequency. The working principle of a
Efficiency of Transformer: Formula, Calculation & Maximum Efficiency Explained
The transformer is a vital link between the load and the supply. The efficiency of the transformer is very important in view of energy saving.
Derive EMF Equation of Transformer with Diagram and Examples
Understanding the EMF equation of transformer is essential to grasp how transformers work. When a sinusoidal AC voltage is applied to the primary coil, it
Why Making Current of Circuit Breaker is More than Breaking Current?
A circuit breaker is an essential protection device used to switch electrical circuits on and off and to isolate faulty sections in the event of
Rotating Magnetic Field in a 3-Phase Induction Motor
The stator of an induction motor consists of a number of overlapping windings offset by an electrical angle of 120°. When the primary winding or stator is
Application of Squirrel Cage And Slip Ring Induction Motor
Squirrel cage and slip ring induction motors are widely used in industrial and commercial applications due to their ruggedness and efficiency. While both are types
Why Induction Motor Takes High Starting Current?
Why does an induction motor take high starting current? When an electric motor starts, especially an induction motor, it draws a large amount of current.