Miniature Circuit Breaker or MCB has a contact system. That means of arc quenching a mechanism and tripping and protection system to open the circuit breaker under fault conditions during operation like the MCCB. In this post we will learn about the MCB, MCB’s History, Construction and Working Principle. What is Miniature Circuit Breaker? Present days, we use Miniature Circuit Breaker or MCB for low voltage electrical network instead of fuse. One of the best reasons to use this MCB Read More …
Features of MCCB and ACB with Advantage
You may already see or heard most two common names during your work and that is MCCM and ACB. This two switching device is use to control power in load incoming or outgoing side. But it always depends on the designer which type of switching device is appropriate to control specific amount of load. These two devices have some basic feature and in this post we will learn “Features of Moulded Case Circuit Breaker (MCCB) and Air Circuit Breaker (ACB) Read More …
What Will Happen When You are Struck By Lightning?
Generally lightning strikes are not always a death sentence. But we may get several news in each year that people died by the lightning around the world. Like this year in Asia several person killed by deadly lightning. Although 500 people who are struck by lightning each year and about them 90 percent are survive. In this post we will learn, “What Will Happen When You are Struck By Lightning?” Now before we go further let’s know about, How Lightning Read More …
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 …