| 總結: | The paper investigates the main properties of the trigger effect in diode-thyristor circuits and proposes the creation of small-sized thyristor contactless voltage relays, combining in one device a sensitive system to changes in input voltage and powerful actuators capable of switching large load currents. The article also discusses a non-contact thyristor relay of alternating current voltage, the load mode of which is analyzed, taking into account the voltage of the transition to the open state of the thyristor and the formula for the effective value of the voltage across the load. It is proposed to use the developed such relays as contactless switching and control equipment, which allow to reliably and quickly control the operating modes of electrical equipment, regulate the reactive power of capacitor banks, create ring networks, improve the quality of electricity in distribution networks and reduce capital costs for the construction of a power supply system.
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