Repair of electrical equipment

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Electrodynamic and ferrodynamic measuring devices. Useful for electrician: electrical engineering and electronics

Electrodynamic and ferrodynamic devices are based on the principle of interaction of currents of different coils, one of which is stationary,...

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Measurement of currents and voltages in three-phase circuits. Useful for electrician: electrical engineering and electronics

When measuring currents and voltages in three-phase current circuits, in most cases they are satisfied by measuring a single...

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Transformer short circuit mode. Useful for Electrical Engineering: Electrical and Electronics Engineering

The short-circuit mode of the transformer is such a mode when the terminals of the secondary winding are closed by a current conductor with...

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Multi-speed electric motors and their use — purpose and characteristics, determination of power at different speeds of rotation. Useful for electrician: electrical engineering and electronics

Multi-speed electric motors - asynchronous motors with several speed levels, designed to drive mechanisms that require step-by-step control of...

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Valve motor.Useful for electrician: electrical engineering and electronics

The valve motor is understood as a variable electrical drive system consisting of an alternating current motor structurally similar to a synchronous machine, a valve...