Eddy currents are magnetic fields created whenever a current passes through a conductor. They’re usually found only in particular scenarios. the typically application is the Electrical Conductivity Meter. Eddy currents …
There’s a new substance taking the renewable energy world by storm, and it’s been hiding in plain sight. Titanium dioxide (TiO2) is a white powder found in sunscreen, cosmetics, and …
In this article, you will learn three principle methods of magnetizing a steel bar. If a piece of iron or steel is brought near either of the poles of a …
A DC motor can be made using different types of armatures based on its application. There are 2 types of armatures. Gramme Ring Armature Drum Wound Armature Gramme Ring Armature …
Three-phase transformers are used in three-phase circuits to step up and step down the voltage according to the needs in a power system. You know that electric power is generated …
Open Delta Connection is a method of transformer connection used to transform three-phase power using two single-phase transformers. In this article, you will learn how this connection is done and …
The electromagnetism lecture notes is a book to provide an introduction to Electromagnetism for Electrical and Electronics Engineers. These are compiled by David Tong, Department of Applied Mathematics and Theoretical …
This is the complete guide to learn electrical engineering basics in 2024. The study of electrical engineering involves the analysis of the energy transfer from one form to another or …
An amplidyne is an electromechanical amplifier with the characteristics of a rotating machine. It was invented prior to the second world war by Ernst Alexanderson. It is now mostly obsolete. …
This article covers transformer impedance testing, one of the acceptances tests for new transformers, and a method for routine testing. The results of this test should compare directly to the …
An electrical substation is an integral part of a generation, transmission and distribution system. A substation can interrupt or establish electrical circuit, change the voltage, frequency or other characteristics of …
Transformer bushing types are categorized based on their material, manufacturing, and design mainly into the following types: OIP (Oil-Impregnated Paper) Bushing RIP (Resin Impregnated Paper) Bushing RIS (Resin Impregnated Synthetic) …
Synchronous motors are not self-starting. Some additional devices should be used to start the motor. Basically, there are two methods for starting synchronous motors: Induction motor starting (Damper winding) Auxiliary motor …
We use 3 and 4 point starters in DC motors. What happens if a DC motor is started without a starter? Let’s check it. Consider a dc motor at standstill. When …
A current transformer (CT) is a type of transformer that is used to measure AC current. It produces an alternating current (AC) in its secondary which is proportional to the AC …
Please read Ideal Transformer and Practical Transformer before continuing. Consider a practical transformer on no load i.e., secondary on open-circuit as shown in figure below. The primary will draw a small …