Md Nazmul Islam

The Economic Choice of Transmission Voltage - One day, I was teaching about transmission lines in a class. Then a student asked me a question, "Sir, how does the PGCB (Power Grid Company of Bangladesh) fix the transmission voltage as 132, 230, or 400 KiloVolt?" The question was logical....

AC-DC and Filament of an electric bulb | A love Story - Ever thought about, AC-DC and Filament of an electric bulb. Why can't DC be used instead of AC? Let's learn from a love story, shall we? It’s raining outside. The atmosphere is gloomy. Holding a cup of hot...

Why stones are used in Substation instead of Sand or Grass? Ever thought, why stones are used in substation instead of sand or grass? The reason is simple. But, can't be explained easily. What comes to mind when we hear about substations? Transformer, circuit breaker, lightning arrester, etc devices come...

Difference between black out brown out and spooky phenomenon - Black out and brown out are two different things. It may seem like a spooky phenomenon, but in reality it is not. The difference between black out, brown out and spooky phenomenon will now be explained. Difference between black out...

What does mAh mean in a battery - What do we mean by the mAh rating? Especially, in the case of mobile batteries, what does it stand for? Today, I will discuss a very exciting topic with you all. At the age of 4G, there is hardly any person without...

Direction of current flow and electron flow- why are they opposite to each other? No matter how much research we do about voltage and current, people just can't get enough of it. The people are always curious regarding it. Moreover, most curiosity arises about why electron and current flow opposite...

Common misconceptions about Electricity and the solution to it - let's find out. Electricity is a part and parcel of our daily lives. We can not go a single day without it. During the summer times, we can not stay for a single while without fans and air conditioners....

Wireless power transmission System : Wireless power transmission system is the process of transmitting wireless electromagnetic waves like Wi-Fi. So this method of power transfer is safe and this method is similar to the way a Wi-Fi router works. Moreover, the method of transmission of electricity from one place to another...

Electric eels fish-The electric power of the eel fish will be talked about here in the story A long time ago, a scientist with his research team went on a tour to the Amazon jungle in Brazil. Their purpose was to study different species of fish in the Amazon River...

Substation Synchronizing System - We all are familiar with the term Substation Synchronizing System. Today, I will try to explain it more elaborately. First, let us learn about substation synchronization. Substation Synchronizing System: The lexical meaning of synchronization is rhythm or consistency. In other words, synchronization is the process...

Optical Ground Wire: Transmission Line is not unknown to us. While travelling on a train, on a highway or even by river, these transmission lines can be seen. Moreover, students of Electrical Engineering can never overlook it. You must have noticed a very thin wire on the apex of the...

What are the causes of Load shedding? How it differs from the conventional concept. The truth behind load shedding. What are the causes of Load shedding? Is a power outage called load shedding? Load Shedding: A concept remains in general people's mind that power outage is load shedding. What is the reality behind...