The choice of a profession is one of the most responsible decisions in the life of every person. If initially there is a desire to connect your life with the electrical industry, then here everything is not so simple. In this area of ​​human activity there are many different professions, one can say the lines of activity that have their own characteristic distinguishing features. In this article, we give a brief description of the profession of a substation maintenance electrician.

To begin, consider what this profession is and what is the responsibility of an electrician in servicing substations. Surely everyone knows about such an object as an electrical distribution substation.

Why do we need substations? Distribution substations are used to receive electric energy, its conversion and distribution to consumers or other substations ...

The protection principle was based on the principle of relays - devices that constantly monitor any electrical parameter of the network, and when they reach critical values, they trigger: they sharply change their initial state by switching the electrical circuit.

The first protection devices were made on the basis of electromechanical relay designs, and the specialists involved in their operation began to be called the term "relay", which is valid to date.

The relay protection and automation service (RPA) created in the power system on the basis of constantly gained experience is simultaneously involved in other complex processes: control systems that include local, remote and remote methods, blocking of certain devices, signaling circuits that allow analyzing ...

Intrusive advertising on the Internet and even on state television channels through a television store persistently offers the public a device for saving electricity in the form of "new products" of the electronic industry. Pensioners receive a discount of 50% of the total cost.

“Saving Box” is the name of one of the offered devices. They have already been written about in the article "Instruments for saving energy: myth or reality?". The time has come to continue the topic with the example of a specific model, explaining in more detail: what is reactance, how is active and reactive power created, how is reactive power compensation carried out, on the basis of which reactive power compensators and a device for saving energy are working. People who buy such a device will receive a package with a beautiful box in the mail. Inside is an elegant plastic case ...

In this article I will share my experience and try to talk about the basics and basic principles of building a wireless budget smart home system.

Not so long ago, I had the idea to install a Smart Home system. In the already built, residential apartment, I did not want to break, drill and shatter. Therefore, the choice fell on wireless solutions.

The market now has a lot (according to information from the High-Tech Building 2014 over the past year the market has grown by ~ 30%) proposals for the installation of turnkey multifunction elite systems. But, firstly, they, as a rule, have a high price (hundreds of thousands of rubles), and secondly, they are closed systems that do not allow the addition of third-party devices. And in general, such systems are not adapted for repair, modernization and expansion by the user. I wanted to find something budgetary, with the possibility of my own ...

The People's Encyclopedia Wikipedia reveals the term “Saving” as a prudent, careful spending of any resources. Applying it to electricity, it should be clarified that it is possible to reduce electricity charges: by putting things in order when using numerous electrical appliances without spending material resources, using new technologies that require initial financial investments, simply stealing electricity.

The method of theft involved people who have lost their conscience. They have developed many deceptive technologies. But this is not our topic at all, so we will consider in more detail the first two methods. In life, there are times when good intentions are not always justified, and the transition to energy-saving technologies is often accompanied by monetary costs. Recommendations for saving electricity in everyday life are well known, but not all people see the main sources of loss ...

Thanks to the eloquent and sometimes intrusive advertising of LED lighting, the latter is confidently being introduced into our lives. That's right, we must keep up with progress. Only for the sake of this progress, often, one has to sacrifice the quality of light, its ability to convey the true color of the illuminated material.

Somewhere this is permissible, and somewhere absolutely not. For example, in the field of professional lighting of goods in stores, fashion boutiques, etc. The “right” light will make the product more attractive and contribute to a faster purchase (especially if the competitors have antediluvian raster lamps behind the wall).

If we take into account the fact that young entrepreneurs are not ready to spend money on really high-quality, and therefore expensive LED lamps, and the specifics of the products require ...

The ability to receive free electricity by the wind appeals to many owners of individual houses, but a certain part of them fails, is disappointed in this method and writes negative reviews in various forums. But you can avoid mistakes in creating such installations and get the most out of them.

The wind generator with its electrical circuit and design principles resembles any other generator. The main difference lies in the method of spinning its rotor due to the kinetic energy of the air flows captured by the aerodynamic blades.

The speed and power of the wind must reliably rotate the impeller of the engine, the energy of which is consumed by the generator. If this is not done, then you will be left without electricity. An estimate of the likelihood of an active wind will help ...

Besides TENOV and open spirals there are many other elements, some of which are almost the same age as the open spiral, while others have appeared relatively recently, thanks to the development of modern technologies. About these heaters, new and not very, will be discussed in this article.

They are used in various devices, primarily infrared room heaters. Simply put, these are heating appliances that create comfort in a house, apartment, office or workshop. For various conditions, a wide variety of heater designs are used. Infrared heaters can also be used in various technological equipment where heating of certain objects is required. A striking example of such technological equipment are infrared soldering stations and modern laboratory heating cabinets and furnaces. Widely used infrared heating in group soldering ...