Electric materials
Electric current in semiconductors. Useful for electrician: electrical engineering and electronics
Semiconductors lie between conductors and dielectrics in terms of resistance. Silicon, germanium, tellurium, etc. - many elements of...
Rolling stock: steel pipes. Useful for electrician: electrical engineering and electronics
Steel pipes are widely used in the production of various structures: construction of pipelines, production of parts for boilers and heating...
Power factor of the electric drive. Useful for Electrical Engineering: Electrical and Electronics Engineering
The power factor of the electric drive is the ratio of the active power consumed by the electric drive to the apparent power. At sinusoidal...
Nominal voltage of distribution networks. Useful for Electrical Engineering: Electrical and Electronics Engineering
According to GOST 21128-83, the nominal voltages of a three-phase AC network up to 1000 V are 40, 220, 380 and 660 V. Accordingly...
Operating conditions of electric motors.Useful for electrician: electrical engineering and electronics
The operating conditions of a general industrial electric motor include location and climate, temperature and humidity, altitude, as well as mechanical stress...
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Why is electric current dangerous?