Asynchronous motors are widely used in industry due to the relative simplicity of design, good performance, ease of control.

Such devices often fall into the hands of a home master and he, using knowledge of the basics of electrical engineering, connects such an electric motor to work from a single-phase 220 volt network. Most often it is used for emery, wood processing, grain grinding and other simple work.

Even on individual industrial machines and mechanisms with drives, there are samples of various engines that can operate on one or three phases. Most often, they use a capacitor start, as the most simple and acceptable, although this is not the only method known to most competent electricians. Industrial asynchronous electrical devices ...

Color insulation of conductors today is an integral attribute for the successful and proper installation of electrical wiring. Such a solution is by no means a way to make the wires beautiful and attractive to the consumer, it is a convenient color marking, standardized and regulated throughout the civilized world, which is, without exaggeration, a necessity.

The color marking of the wires gives an exact designation to each conductor, the color of the insulation of the core marks its purpose in a group of several conductors, and facilitates the process of switching and installation. This solution eliminates errors that may occur during installation, which could lead to a fatal electric shock or short circuit. Repairing and maintaining electrical networks also becomes safer if the wires are precisely labeled ...

The metering of consumed electricity is carried out by measuring instruments that take into account the power passing through them for the estimated period of time. In order to correctly install and connect an electric meter, it is necessary to understand the principle of its operation, which consists in constantly monitoring such parameters as: the magnitude of the load flowing through the current measuring organ, the value of the voltage supplied to the input of the controlled electric circuit, and the connection time.

Any electric meter, regardless of its design, has: a terminal block on which electricity is supplied and simultaneously removed (input and output circuits), an internal circuit. When connecting the wires to the terminal strip, it is important not only to switch the phase and neutral conductors to their places, but also to observe the polarity: incoming and outgoing circuits ...

Today, the Tesla transformer is called a high-frequency high-voltage resonant transformer, and in the network you can find many examples of vivid implementations of this unusual device. A coil without a ferromagnetic core, consisting of many turns of a thin wire, crowned with a torus, emits real lightning, impressing amazed spectators. But do everyone remember how and why this amazing device was originally created?

The history of this invention begins from the end of the 19th century, when the ingenious scientist-experimenter Nikola Tesla, working in the United States, only set himself the task of learning how to transmit electrical energy over long distances without wires. It is hardly possible to pinpoint the exact year when this idea came to the scientist for sure, but it is known that on May 20, 1891, Nikola Tesla delivered a detailed lecture at Columbia University ...

On October 2, 2015, Google finally became part of the Alphabet holding, in connection with which the management of some projects was reorganized. This has affected all projects that are part of Google X, which is engaged in almost secret laboratory developments in the field of advanced technologies.

One of the most ambitious projects that Google X has been pursuing for several years is the development of technologies that make clean energy sources more accessible. So, in 2013, the technology giant acquired Makani Power, a wind turbine manufacturer, so that Google X’s efforts to develop one of its key areas become even more productive.

But Makani Power is not ordinary wind turbines, not the kind used everywhere in windmills. Developed by Alameda (California, USA), the devices are on-board units ...

Among the many chips presented on the modern market of microelectronic components, there are real legends that have rightfully earned their high reputation. In this article, we will focus on four such legendary analog microcircuits, namely: NE555, A741, TL431, and LM311.

The NE555 Analog Integrated Circuit is a universal timer. It successfully serves in many modern electronic circuits to produce repetitive or single pulses with constant time characteristics. The microcircuit is essentially an asynchronous RS-trigger with specific input thresholds that are precisely set by internal analog comparators and an accurate voltage divider. The integrated structure of the microcircuit includes 23 transistors, 16 resistors and 2 diodes. NE555 is still available in various packages ...

When it comes to choosing a multimeter, the user is faced with a problem. Which multimeter is suitable for its various purposes? After all, the assortment of measuring instruments of this type is quite wide today, multimeters with more or fewer functions are on the market, some are more expensive and some are cheaper, but the choice should be made not to buy the first one that catches your eye.

For household purposes, the device is simpler, and for repair and laboratory work related to the diagnosis of electronic devices and maintenance of industrial equipment, you will need a professional multimeter. Let us compare the difference between a household multimeter and a professional one, and what tasks this or that class of this device will solve. As a household multimeter is very popular ...

Owners of cottages and summer cottages on their territory are building garages, baths, small workshops, cellars and other utility rooms, which are supplied with electricity for lighting, heating and other uses. The article gives recommendations on how to reliably and safely perform such work, avoiding the typical mistakes made by home masters.

Before undertaking electrical work, they must be carefully thought out and a plan drawn up on paper. This will save time on the implementation of ideas, materials and money. Official sources recommend using a radial wiring diagram in new rooms to the main distribution panel of the building when cable lines radiate to all consumers from it. This option allows you to have everything in one place. circuit breakers...

A device that measures the level of humidity is called a hygrometer or just a humidity sensor.In everyday life, humidity is an important parameter, and often not only for ordinary life, but also for various equipment, and for agriculture (soil moisture) and much more.

In particular, our well-being depends a lot on the degree of air humidity. Particularly sensitive to humidity are weather-dependent people, as well as people suffering from hypertension, bronchial asthma, diseases of the cardiovascular system. With high air dryness, even healthy people feel discomfort, drowsiness, itching and irritation of the skin. Often dry air can provoke diseases of the respiratory system, starting with acute respiratory infections and acute respiratory viral infections, and ending even with pneumonia. At enterprises, air humidity can affect the safety of products and equipment ...

Despite the fact that track lights are an innovation, they have already gained popularity thanks to a number of indisputable advantages compared to conventional ceiling lights. So, track LED lamps are already widely used for decoration of offices, houses, industrial workplaces, shopping centers, etc. Their aesthetic appearance makes it easy to fit such lamps into any interior with the ability to adjust the contrast and gradation of light.

Leading manufacturers today have an extensive range of LED, halogen, metal halide, sodium and fluorescent track lights. Track lights differ in design, construction, color performance, type of reflectors and a number of other individual features. The track system of luminaires is formed by an aluminum busbar or a U-shaped conductor ...

There are many different types of capacitors in the electronic components market today, and each type has its own advantages and disadvantages. Some are capable of operating at high voltages, others are notable for significant capacitance, others have a low inductance, and some are characterized by an exceptionally low leakage current. All these factors determine the application of specific types of capacitors.

Consider what types of capacitors are. In general, there are a lot of them, but here we will consider the main popular types of capacitors, and we will figure out how to determine this type. Aluminum electrolytic capacitors, for example K50-35 or K50-29, consist of two thin strips of aluminum twisted into a roll, between which paper impregnated with electrolyte is placed. The roll is placed in a sealed aluminum cylinder, at one of the ends of which contact pins are located ...

It would seem that just recently, having opened any apartment shield, you could find there only a counter with a couple of traffic jams, but modern panels have already gone quite far from their Soviet predecessors. The same compact machines, in much larger quantities than steam, and other electrical equipment, are now mounted in panels exclusively on a DIN rail.

Many modular elements, such as starters, relays, controllers, switches, timers, RCDs and more, can be assembled into blocks today by mounting them on a DIN rail - a brilliant invention of the German Institute for Standardization. This is a simple-looking perforated or solid profile made of steel or aluminum, characterized by the current of the ground terminal, strength and weight. DIN rails are available in different lengths, they can be divided into shorter pieces as needed, for this a marking in the form of a notch can be applied to a long rail. DIN rails and profile shape vary ...