The principle of operation of this device and the pros when using it.

As you know, incandescent lamps and the so-called halogen lamps very often fail. This is often due to unstable mains voltage and the very frequent inclusion of lamps. Even if low voltage lamps (12 volts) are used through a step-down transformer, still the frequent switching on of the lamps leads to their rapid combustion. For a longer service life of incandescent lamps, a device for smoothly switching on lamps was invented.

A device for smooth start-up of incandescent lamps ignites the lamp spiral more slowly (2-3 seconds), thereby eliminating the possibility of lamp failure at the time of filament ...

If you have a magnetic starter with burned-out contacts or a broken case, but with a whole 220 Volt coil and a magnetic circuit, then you can make a transformer of not high power and any voltage with it yourself, but from it a charger.

Previously, in case of malfunctions of the magnetic starter, I simply dismantled it for parts or assembled one normal out of two three faulty magnetic starters. Recently I was looking for a transformer to make a charger for AAA batteries (mini-finger type). Three of these batteries are in my flashlight. But recently I came across a magnetic starter with burned out contacts. I disassembled it, I look, there is a 220 volt coil, there is a magnetic circuit, it remains only to wind the secondary winding and the transformer is ready ...

Today, the use of expensive household electrical appliances in your life plays a fundamental role in comfort and greatly facilitating the performance of various work. But how often do electrical appliances fail? What is the main reason for the cessation of their functioning and how to protect electrical appliances from premature failure?

Today, almost all imported equipment has units protecting the device from power surges, which burn out with a high voltage surge, but do not allow the device to completely fail. However, the electrical appliance must be taken to a repair shop to replace the fuses.

How to secure electrical appliances in your home or office?

The manufacture of removable wiring for the garden.

I work as an electrician in our garden community. Most of the houses in our gardening are single-story, summer. It is difficult to protect such a house from looters. Now, when prices for non-ferrous metal have risen, the devastating raids on holiday villages from autumn to spring have become constant.

In my house I made removable wiring. He recommended and helped do the same to his neighbors in the country. Now we do not need to restore the power supply of our garden house from scratch. I think that this method of maintaining electrical wiring in the country will interest gardeners and gardeners ...

Reason for switching to energy-saving LED products. Comparison and simple mathematical calculation of the savings and benefits of the purchase in the long run.

Today, many talk about new energy-saving technologies. That in the near future the traditional "Ilyich bulbs" will live out their Century and a new era is coming, or rather the electrical LED revolution.

This issue has risen to the state level. Starting with the President, who gave instructions to the state corporations Rosstekhnologii and Rusnano, to introduce energy-saving technologies, due to the fact that electricity is not used up efficiently and it is time to break stereotypes and keep up with the times. Factories will be built in a short time on the territory of Russia, where they will produce LED products ...

We make a powerful uninterruptible power supply based on a standard UPS by connecting two KAMAZ batteries to it. We also do automatic ventilation when switching to offline mode.

Such is the reality that Russian power grids force consumers themselves to take care of the stability of the electricity they receive. In our case, it is necessary to solve two important problems: a large voltage drop (typical for the hot / cold season, when the air conditioners / electric heaters turn on) and a complete blackout (“knocking out” of machines, accidents at substations, etc.).

If the first problem is easily solved by installing an autotransformer, which allows to obtain a stable voltage of 220 volts at the output, then the second requires the organization of an uninterruptible power system, designed for a long battery life ...

An electrician without power tools, this is not an electrician. After all, no matter what knowledge you might have, it is impossible to strip the wire, tighten the contact, measure electrical parameters, etc. without the appropriate tools. This is what every electrician should have his own and with him, as they say without a tool as without hands.

There is a huge amount of all kinds of tools, both for a specific purpose and all kinds of species.

Perhaps I think that you completely agree with me that having in your house a lot of any different things, usually you have to use only a small part of them, namely the most necessary. So in an electrician, you can carry many tools in a bag, although in practice only some of them are constantly used. This is the electrician’s tool, the main set ...

This circuit of connecting an electric meter (single-phase and three-phase) is called direct. It is the most simple and quite common in its use in practice in everyday life.

According to the norms, up to 3 kW is allocated for one apartment (for apartments with an electric stove - 7 kW). At this power, the current will lie within 13.5 A.

The counters have an inscription on its characteristics, among which the rated and maximum currents are indicated (for example, it is usually written like this: 5 - 15 A, or 10 - 40 A.). Since the counter current lies in the normal aisles of the current consumption, they are connected in a direct way (without additional current transformers).

Despite the huge variety of electric meters produced, the location of the connection terminals they all have the same. On the terminal cover itself (on the inside) there is a drawn connection diagram (just in case, if you forgot how to connect the electricity meter) ...