Difference between Fuse and MCB

When the electricity is flowing normally, the fuse permits the power to pass unobstructed across its filament, between circuits. If an overload occurs, the filament melts, stopping the flow of electricity. Fuse is a one time use device and melts when excess current passes through it and protects the other devices in the circuit.   … Read more

Smart Grid – An Overview

What is Smart Grid? A Smart Grid is an evolved Grid system that manages electricity demand in a sustainable, reliable and economic manner, built on advanced infrastructure and tuned to facilitate the integration of all involved. So tough definition? Let’s make it simple. Smart Grid is a Power Grid monitored and controlled electronically to maximize efficiency … Read more

HVDC – Advantage & Disadvantage

A scheme diagram of HVDC Transmission is shown below for ease in understanding the advantages and disadvantages.     Advantages of HVDC: There is a list of advantages of High Voltage DC Power Transmission, HVDC when compared with High Voltage AC Power Transmission, HVAC. They are listed below with detail while comparing with HVAC. Line … Read more

What is Antifuse?

An Antifuse is an electrical device that performs the opposite function to a fuse. Whereas a fuse starts with a low resistance and is designed to permanently break an electrically conductive path when the current through the circuit exceeds a specified value while an Antifuse starts with a high resistance and is designed to permanently … Read more

HVDC Back to Back System

As we know that High voltage AC is used to transmit the electrical power for reducing the power transmission losses and because of the flexibility of AC System. In a transmission system different Grids are interconnected but some time it may happen that one or more Grid or Power System may not be in synchronization … Read more

Transformer Inrush Current

In this post we will discuss the Magnetizing Inrush Current in a Power Transformer. Magnetizing Inrush urrent in Transformers results from any abrupt changes of the magnetizing voltage. This current in transformer may be caused by energizing an unloaded transformer, occurrence of an external fault, voltage recovery after clearing an external fault and out-of phase … Read more