TRANSISTORIZED TREE-PHASE REACTIVE-CURRENT SUPPLY Russian patent published in 2005 - IPC

FIELD: electrical engineering.

SUBSTANCE: proposed device tat can be used to raise efficiency of electrical energy consumption due to relieving power supply mains of reactive currents has three-phase diode bridge connected to supply mains through three reactors; connected at dc output of this diode bridge through isolating diodes are three storage capacitors. Device also has bridge inverter built around six transistors connected through their outputs to ac input of diode bridge and three additional transistors connecting dc input of inverter to storage capacitors. Transistor control system functions to convert signals arriving from outputs of voltage sensors across load, load and supply mains current sensors, and to generate thyristor control signals so that source automatically generates correction currents equal to reactive currents consumed by load, and only resistive component of load currents is consumed from supply mains.

EFFECT: reduced mass and size of device, ability of generating sine-wave corrective currents.

1 cl, 2 dwg