Repair of electrical equipment

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How active power is measured in a single-phase AC circuit. Useful for electrician: electrical engineering and electronics

If active power needs to be measured accurately, then it is best to use electrodynamic system wattmeters or electronic...

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Current transformer selection to extend measurement limits. Useful for Electrical Engineering: Electrical and Electronics Engineering

How to choose the right current transformer to extend the measurement limits of ammeters in AC circuits. When measuring the...

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What does the accuracy class of the measuring device mean? Useful for electrician: electrical engineering and electronics

The accuracy class of the measuring device is a generalized characteristic determined by the limits of permissible basic and additional errors, as well as...

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What are the advantages and disadvantages of electromagnetic measuring devices? Useful for electrician: electrical engineering and electronics

The electromagnetic device has an electromagnetic measuring mechanism with a fixed coil, through the coil of which an electric current flows, and one or more...

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How power factor is measured.Useful for Electrical Engineering: Electrical and Electronics Engineering

To measure cosine phi, it is best to have special devices designed for direct measurement - phase meters. The phasometer is...