FIELD: electricity.
SUBSTANCE: disclosed is a power-saving voltage stabiliser for a three-phase electric mains, having at least one multi-purpose control single-phase air transformer, the primary coil of which is connected to a control and switching unit, and the secondary coil is connected to a load circuit; the stabiliser further includes an electric mains quality analyser with functions of a programmable logic controller with digital control outputs and capable of configuring device control functions depending on parameters of the electric mains and the switching unit.
EFFECT: broader functional capabilities owing to an improved series of units of the voltage stabiliser and wattless power compensator, high efficiency of the stabiliser and electric power saving.
1 dwg
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