Notes for an electrician
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Power semiconductor devices and converters based on them are being developed in the following priority areas: improving the characteristics of power semiconductor...
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Asynchronous motors with three-phase alternating current with a voltage of up to 500 V at powers from 0.05 to 350 - 400 kW...
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A semiconductor is a substance with an electrical conductivity of 10-10-104 (ohm x cm) -1, located by these properties between a conductor and an insulator. The difference...
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Back in the 1950s, betavoltaics - a technology for extracting the energy of beta radiation - was...
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A manometric thermometer consists of a thermometer, a tubular (or spiral) spring and a capillary connecting them, filled with gas, liquid or...
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