VOLTAGE REGULATING DEVICE Russian patent published in 1995 - IPC

FIELD: electrical engineering. SUBSTANCE: voltage regulating device has three-legged magnetic circuit carrying two primary windings on extreme legs and one secondary winding on each leg, as well as regulating device connected to control circuit which is connected through phase-shifting device to auxiliary winding. Primary windings are inter connected in parallel and connected to supply mains; one of them is connected through regulating device; auxiliary winding is wound on leg of second primary winding; parts of secondary winding are interconnected cumulatively in series. Device may operate on three-phase or single-phase supply mains. EFFECT: improved power characteristics and operating reliability of device, reduced mass and size, cost and radio noise, enlarged functional capabilities. 2 dwg