FIELD: electricity.
SUBSTANCE: device comprises direct-current source, inverter, output current and voltage sensors, load, auxiliary contactor with contacts between the direct-current source and inverter; the device is equipped additionally with two analogue multipliers, two rectifiers, low-frequency filter, two comparators, OR element, timer and inhibit circuit.
EFFECT: overload protection of the device, small dimensions and weight, high reliability and serviceability.
1 dwg
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