Faraday’s Law of Electromagnetic Induction

FARADAY’S LAW OF ELECTROMAGNETIC INDUCTION According to the Faraday’s law of electromagnetic induction, emf gets induced in the rotor. As the rotor circuit is closed one so, the current starts flowing in the rotor. This currents called the rotor current. This rotor current produces its own flux called rotor flux. Since this flux is produced… Read More »

Electric DC Motors Principle Of Operation & Types

First of all we should understand the concept of electric DC motors, an electric motor is a machine that converts electrical energy into mechanical energy. Most of the electric motors operate through the interaction between electric motor’s magnetic field and winding currents to generate force within the motor. In certain applications, such as in the… Read More »

What are Necessary Fittings & Parts for Medium Voltage MV Transformers?

Transformers Fittings In order to install a medium voltage transformer below is the list of necessary fittings: Plain bi-directional rollers with blocking facilities. Skid base, lifting and jacking lugs Neutral and earthing terminals Rating and terminal marking plates Transformer Thermal Protection Temperature protection shall be incorporated to prevent thermal overloading of the power transformers. BMS… Read More »

CIRCUIT BREAKERS WORKING PRINCIPLE & TYPES

It is well known that Circuit Breakers are devices which are used to break a circuit continuity and restore it again when required. Normally these are known as switching devices that can be activated manually or automatically to control the electrical power systems. In case of short circuiting or leakage of the larger amount of… Read More »

Power & Voltage Distribution Systems – Components Introduction

Distributions systems represent an important parts in the electrical grids and for this reasons the electrical generation & distribution companies delicate approximately 40% of the capital investment for distribution systems while the remaining is given to generation and transmission (40% generation & 20% transmission). The power distribution system is particularly important for an electrical utility… Read More »

Ideal Transformer Equations

An ideal transformer is a theoretical, linear transformer that is lossless and perfectly coupled; that is, there are no energy losses and flux is completely confined within the magnetic core. Perfect coupling implies infinitely high core magnetic permeability and winding inductance and zero net magneto-motive force. Ideal transformer equations By Faraday’s law of induction:  (1) Where… Read More »