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 A relay is a device for switching an electrical circuit when input influences change. The classic version is an electromechanical device that opens or closes contacts when electric current passes through the winding. Imp
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 One of the protective devices used in electrical installations is a thermal relay, which is used to protect the electric motor from overload. Today there are various types and types of these products, but they all have a similar area
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 Hello, dear readers of the Electrician's Notes website. In previous articles, I told you in detail about how to do it correctly. Today's article will be devoted to the topic of the input switchgear, or abbreviated as ASU. This is a word
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 During a thunderstorm, impulse noise often occurs in the network. They can also be observed when a transformer breaks down. To protect electrical equipment in the house, special SPD devices are used. They are installed in shields of different configurations. The difference in modification
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 Perhaps everyone has heard about the need to install residual current devices in places where there is an increased risk of electric shock. However, many electricians, among whom there are often professionals, are for some reason convinced that two-wire
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