What is induced current?
Electromagnetic induction occurs whenever there is a relative motion between a magnetic field and a coil. The electromagnetic force acts on the charged particles inside the coil, forcing them in…
Difference between NPN and PNP transistors | NPN vs PNP Transistor
The bipolar junction transistors exist as NPN and PNP types. This article intents to help you understand the difference between these two types and how to use them in a…
K-factor rated transformers
What are K-factor rated transformers? K-factor rated transformers are capable of withstanding the heating effects caused by harmonic load currents. They are specially designed for non-linear harmonics generating loads. It…
What is magnetization current in a transformer?
A certain amount of current is drawn by a transformer from the source connected to it primary even when no load is connected to its secondary. A part of this…
Top 5 differences between kW and kVA
kW and kVA are units of power. kW stands for kilo-watts and kVA stands for kilo-volts ampere. Let's see what is the difference between kW and kVA and how to…
What is meant by plugging a motor?
Induction motors are one of the major power-consuming loads on the planet today and are widely used for all industrial and domestic applications. Plugging is one of the braking techniques…
Digital I/O and Analog I/O
Automation has become the backbone of almost all industries worldwide. Digital IO and analog IO are the most basic terms of any PLC/DCS based control and microcontroller-based applications. A PLC…
What is meant by stalling of motor?
Motor stalling is a condition in which a motor stops rotating even when there is sufficient voltage at its terminals. This condition occurs when the torque required by the load…
Types and comparison of induction motor starters
As the name indicates, starters are used to start or stop a motor. It consists of an electromechanical switch and protection devices (overload and/or short-circuit protection). Why should we need…