Electric energy is transmitted over vast distances between different states, and is distributed and consumed in the most unexpected places and volumes. All these processes require automatic accounting of the passing capacities and the works performed by them. The state of the energy system is constantly changing. It is necessary to analyze and competently manage the main technical parameters.

The measurement of the current power is assigned to wattmeters, the unit of measurement of which is 1 watt, and the work performed over a certain period of time is assigned to meters that take into account the number of watts per hour. Depending on the amount of energy taken into account, the devices operate within kilo-, mega-, gigo- or tera-units. This allows: one main meter located at a substation providing power ...

In homes, offices, manufacturing, and basically anywhere, remote control switches can be useful. First of all, we are talking about lighting control. The advantage of this approach is undeniable, because personal comfort is very important for a modern person, no matter how cynical it sounds.

Switches with remote control over the radio channel, through an infrared remote control, with a motion sensor, voice command or just from a smartphone - all this is available today and is very wide. A person no longer needs to approach the switch whenever it is necessary to turn on or turn off the light, it is not necessary to reach for the button on the wall, it is enough to send a signal remotely. And all you need is to add a switch with a remote control to the lighting circuit. It is about such switches that will be discussed in this article, we will consider several models ...

Which lamps are better for home lighting? LED, fluorescent, halogen or incandescent? What are the advantages of some and the disadvantages of others? How economical is it to use lamps of one type or another? Let's try to figure it out.

Incandescent lamps remain the most common type of lamp in homes. To this day, they are available in various capacities, come in a variety of sizes and shapes, suitable for installation in almost any lighting device, whether it be a lamp, a night lamp or a chandelier. Incandescent lamp - the simplest electric light source. It consists of a sealed transparent evacuated flask, a metal base, and a spiral is installed inside the flask - a tungsten filament. During the operation of the lamp, an electric current flows through its tungsten filament, just causing the filament to heat up to white ...

Electrical assistants have firmly and permanently entered our lives. They facilitate the performance of routine homework, save a person from monotonous physical labor. Therefore, manufacturers of household appliances are constantly improving their products, providing them with new features and improved capabilities for operating conditions with increased safety. However, in real life, for some reason, it turns out that a new serviceable washing or dishwasher is shocking and requires grounding. Let's try to figure out why this is happening and how to do the right thing in this situation.

Modern production is designed to produce household electrical products designed to work in three-phase wiring.It is connected via the TN-S grounding system using a separate PE conductor, providing reliable electrical connection ...

LED lighting is by far the most efficient, and in this context it is not at all surprising that LEDs undergo a certain evolution year after year. Their power is becoming more and more, buildings are optimized for various purposes, not to mention the color of the emitted light. The color can be almost any, it is enough for the manufacturer to choose the appropriate composition of the semiconductor and dopants, so that the band gap for the recombination of electrons and holes gives the desired color.

Meanwhile, all modern LEDs can be classified to some extent by type, that is, by the most distinctive distinguishing features, which we will do - we will consider several types of the most common LEDs, from indicator ones to lighting ones. The LED started its evolution ...

Wireless automation systems based on Z-Wave are confidently strengthening their positions in the areas of home and office optimization, which is not at all surprising, because these systems are flexible and affordable. And the operating frequency of 869 MHz is allowed, and will not bring any trouble to the owner of such a system (radio frequencies, frequencies of cellular networks and Wi-Fi will not cause interference). Thus, the wireless standard Z-Wave allows you to automate the control of home and office equipment, bringing only additional comfort to the everyday life of a modern person.

The technical side of the technology is very attractive: indoor communication at a range of up to 25 meters and up to 50 meters in open space. Moreover, the use of routing through network nodes allows the user to eliminate the need for direct visibility between sources and receivers of signals ...

RCD is a residual current device. Such devices are designed to shut off the power supply in case of current leakage. The latter can happen if you touch a bare wire, if a child accidentally puts something metallic into the socket, and also as a result of damage to the insulation of the wires. In order to protect yourself and your home, you must correctly select the protective disconnect device. To begin with, we will figure out what types of protective devices are.

All RCDs are divided into two types according to the principle of operation: electromechanical and electronic. Electromechanical devices are independent of voltage, their source is a differential current (leakage current), which is formed in the fault line. Electronic, on the contrary, depends on the mains voltage, and in order to disconnect a damaged circuit, the device needs an external source. There are three types of protective apparatus: AC, A, B ...

Among the diverse transformer devices, transformers are most often found: power, measuring and special. The term “power” defines the purpose associated with the conversion of high power. This is due to the fact that most household and industrial consumers of electric networks need power supply voltage of 380/220 volts. However, delivering it over long distances is associated with huge energy losses, which are reduced through the use of high-voltage lines.

Measuring transformers are created with a high class of accuracy. During operation, their metrological characteristics are periodically checked for correct measurement of both the values ​​and the angles of deviation of the current and voltage vectors.The main feature of the device of current transformers is that they are constantly operated in short circuit mode ...