A complete Electrical Engineering portal
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 is defined in the ANSI/IEEE C57.110 standard. Electronic circuits, switched-mode power supplies and semiconductor switches draw a large amount of non-linear current causing distorted current. … Read more
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 current is used to create flux in the transformer core. This current is known as magnetization current. Definition of magnetization current Magnetization current can be … Read more
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 calculate each one of them. The key differences between kW and kVA kW – Kilowatts kVA – Kilo-volt amperes It is the unit of electric … Read more
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 performed in induction motors. Dynamic braking and regenerative braking are the other two braking methods. What is meant by plugging an induction motor? Plugging is … Read more
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 collects data from the field process it as pre-programmed and produces one or more outputs. The data that is collected from the field is considered … Read more
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 is more than the maximum torque (Breakdown torque) that can be generated by the motor. At this condition, the motor drains the maximum current and … Read more
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 a starter? An induction motor draws 5-10 times its rated current during start. In order to reduce the starting current, we need a starter. If … Read more
