Electric materials

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SI measurement system — history, purpose, role in physics. Useful for electrician: electrical engineering and electronics

In the 17th century, with the development of science in Europe, calls for the introduction of...

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What is a Programmable Logic Controller? Useful for electrician: electrical engineering and electronics

Controller (from English Control) - control. The controller in automated systems is a technical tool that performs the functions of controlling physical...

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International Electrotechnical Commission (IEC, IEC, CEI). Useful for electrical engineering: electricity and electronics

The International Electrotechnical Commission (IEC, in English - IEC, in French CEI) is a global organization founded in 1906 that develops...

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Classification of resistors by materials used and production technology. Useful for electrician: electrical engineering and electronics

Depending on the conductive material and the manufacturing technology, both the general (standard) characteristics of the resistor and its special,...

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Secondary Overcurrent Relays — RTM and RTV. Useful for electrician: electrical engineering and electronics

Direct acting relays, directly acting on circuit breaker drives, are built from two to four parts or more in...