Oct 28, 2021
The question is answered: Alexey BartoshHello! Any relay with a 220V coil with a normally closed and normally open contact is needed.Connect the li...
Oct 28, 2021
In physics, a lot of attention is paid to the energy and power of devices, substances or bodies. In electrical engineering, these concepts play no ...
Oct 28, 2021
Electricity is characterized by three main parameters, including frequency, voltage, and the shape of its curve. Frequency refers to the active pow...
Oct 28, 2021
You have probably noticed that the power lines are fixed on poles on garlands of porcelain or ceramic plates. These plates are called insulators. T...
Oct 28, 2021
we are probably not talking about water heating, but about a system that prevents water from freezing in the pipe. Here I would recommend reading t...
Oct 28, 2021
Residual current device (RCD) is an electrical low-voltage device that serves to automatically disconnect of the protected section of the electrica...
Oct 28, 2021
Synchronous electric motors (SM) are not as common as squirrel cage induction motors. But they are used where a large torque is needed and frequent...
Oct 28, 2021
One of the most commonly used elements in electronics is the resistor. In simple terms, it is called "resistance." With its help, you can limit the...
Oct 28, 2021
Good evening. Your understanding of the topic is not entirely correct. In the phase wire, the voltage changes its value from a positive half-wave t...
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Oct 28, 2021
Why does the hood in the kitchen not work, and the light is on in it?Posted by: 14.01.2019Updated: 14.01.2019 no comments yet Sergey asks: Recently...