Md Nazmul Islam

A generator is a piece of equipment that transfers mechanical energy into electricity. The equipment is a practical electric resource for residences, businesses, and industrial structures as backups when the power goes down. There are wide varieties of generators on the market, but not all will suit every need. When...

We used the 3 phase indicator light wiring of all-electric induction motors and other equipment in the power wiring or three-phase, four-wire system, but we did not disregard the neutral or ground wire. The neutral wire was necessary to complete the circuit in many locations. But it's also crucial...

As you are aware, there are various types of 3 pole circuit breaker wiring diagram. One well-known type of 3 pole circuit breaker wiring diagram is the molded case circuit breaker or mccb. In this post, you will learn about mccb wiring and initiation. I'm going to share two...

Once a motor is fetched in the power industry. So, it is to be connected with the terminal box. The Junior engineer is asked to choose a suitable cable for this. Before choosing a suitable cable for this motor the engineer should know whether it is a single-phase or...

Do you know about the magnifying transmitter of Nikola Tesla? If not, do you want to? Nikola Tesla and his inventions have always been very intriguing. So, let’s dive into the topic. "Could artificial telluric currents of a resonant frequency cause an earthquake? Could Tesla have been the first man...

You must have heard of commissioning. Especially who work in substations, commissioning is not a new term for them. Recently I met with a friend who works in a 230/132 kV substation. So I got to know something from him about the Electrical substation commissioning procedure. Today I will...

Summer days are so hot. We turn on the fan for some relief. The Electricity must be coming from a substation. But have we thought that, how near a substation should be? How much should be the distance from the residential area? Today we will discuss Electrical substation safety...

We have heard a lot that,  people below 50 kg can't enter a substation. Some has given some funny explanation about this. Some said that the magnetic field made by high voltage attracts people with weights below 50 kg. But this is not the right reason. Today we will...

Suppose your boss gave you a task of electrical cable selection (measuring cable size) of the LT side or low voltage side of the substation. What will you do? We can do the cable selection for our home but it is difficult for the substation. Today we will discuss...

We all know that substation is all about AC current. But why do we need DC voltage in the substation? After some research, we have found an answer which we will share today with you. Today we will discuss why is DC supply used in substations? Why do we need...

A busbar is a kind of copper or aluminum conductor rod, which collects Electricity from one or more circuit and distributes it. Today we will discuss the busbar size calculation chart pdf. Busbar Calculation Busbar calculation/selection is done in two ways: Directly based on current value andBased on transformer rating Busbar Size Calculation...

There are some calculations for selecting circuit breakers for LT and HT sides. Today we will discuss cable size and circuit breaker selection and also the circuit breaker rating chart. There is no need for any calculation for the HT section circuit breaker and it is very easy to calculate....