Low Voltage Switchgear Standards and Testing

Generally all Switches, Switch Disconnectors, Disconnectors and Fuse combination units are designed to comply with the requirements, Standards and Testing. All are comply with the requirements of IEC 947-3 or EN 60947-3. This is also requires a combination of type tests and routine tests before installation. For this reason normally a sequence of type tests is required to prove that it compliance with the standard. In this post we will learn about the Low Voltage Switchgear Standards and Testing with Read More …

Circuit Breaker Operation Principle

It’s true that switchgear use to perform the most arduous duty when it is in operation. For better understanding we will learn the about the circuit breakers operation in switchgear operating principles. It will be easy to understand switchgear operation principle if we know circuit breaker operation principle. So let’s go. Circuit Breaker Operation Principle: Construction: Once I dismounted a 1000A MCCB. I found out the heart of a traditional circuit breaker is the contact system. Circuit breaker usually consist Read More …

Advantage and Disadvantage of Water Tube Boiler

Steam is an important source of energy for our modern age. We are using steam from very beginning of our first industrial revolution in human history. Now we are using steam from Textile Industry to Power Plant. In a Nuclear Power Plant steam use in a huge scale. For common usages we use very basic type of steam generator or boiler. Water Tube and Fire Tube Boiler is one of them. Both have some advantage and disadvantage. In this post we Read More …

Construction and Working Principle of Velox Boiler

Velox Boiler is a high pressure water tube boiler. Again if heat supplies through the tube and water supply around the tube then this boiler can be a fire tube boiler. Velox Boiler use GAS in Combustion Chamber. This Boiler has unique basic theory than others boiler that we already discuss about. When the GAS velocity exceeds the velocity of Sound, then heat transfer rate form the GAS much higher than rate achieve in subsonic flow. Velox Boiler used the Read More …

Construction and Working Principle of Loeffler Boiler

Loeffler Boiler is a high pressure, forced circulation and water tube boiler with internal furnace. In this boiler, 65 percent of super heated steam is used to evaporate the water. Everything happend in the Evaporating Drum. All done by the help of Mixing Nozzle. Remain 35 percent of super heated steam, uses by two Steam Turbines. Construction of Loeffler Boiler: Loeffler Boilers consist with a feed water pump and it circulates water to the Economizer. Generally hot flue gas passes through Read More …

Construction and Working Principle of Benson Boiler

In this post we will learn about the Construction and Working Principle of Benson Boiler. I also published couple of article about industrial boiler and if you want you can find it here after reading this article. Before we go farther lets know about person who invented this supercritical industrial type boiler. This boiler was invented by Mark Benson between 1926 to 1927.  But in 1924, Siemens acquired the right to use Benson’s patent. He was a Bohemian German engineer and best Read More …

Construction and Working Principle of Lamont Boiler

In this post we will learn the Construction and Working Principle of Lamont Boiler. But who invented it? Ok, in the year of 1925, Lamont Boiler was invented by Walter Douglas La-Mont. Now let’s go and find out all about the Lamont Boiler. First, What is Lamont Boiler? Lamont Boiler is a water tube boiler which has an internally fired furnace, high pressure, forced water circulation system. As I say, forced water circulation system and for this reason an external Read More …

Construction and Working Principle of Babcock and Wilcox Boiler

We already know that Boiler is an essential part for a thermal power plant. Boiler also use in several industries like Dyeing Industry, Poultry Farm and others. This type of boiler called Industrial Boiler. What is Water Tube Boiler? If a boiler having the system of water flow inside of its tube and heat flow system present in outside then it will called a Water Tube Boiler. Water Tube Boiler can have Straight and Bent Tube, Cross and Vertical Drum, Read More …

Definition of Boiler and Various Types of Steam Boiler or Steam Generator

Steam is important element for producing mechanical energy. We are using steam from very beginning of our industrial revolution. Steam has some great advantage like we can generate steam from water which is available at any place and it does not participate any chemical reaction with any others particle in power plant. Water can stay stable at a fixed temperature in power plant. Steam use in a power plant for driving a steam engine and a steam turbine. This type Read More …

Classification of Power Plants Based on Energy Sources

Generating low cost electricity is becoming more challenging in every year and in the mean time our demand is reaching sky level. But we have limited source of energy that we can converted to electricity. Till now world is using 81% of energy from the source of fossil fuel. This enormous amount of fossil fuel burning creating biggest threat for the climate and the human race. But without electricity is become impossible for us to lead our daily life. In Read More …