DEVICE TO FEED MULTIPHASE LOAD Russian patent published in 1995 - IPC

FIELD: electrical engineering. SUBSTANCE: device includes frequency converter and chokes each placed into proper phase between frequency converter and load and connected to corresponding capacitor. Windings of all chokes have center taps and are wound in one direction with same number of turns on common magnetic core. Dimensions of windings of chokes and magnetic cores are equivalent to filter adjusted to frequency and nominal value of peak surge of converter for their avoidance. Tap of each winding is connected through proper capacitor to capacitors of other phases. EFFECT: enhanced reliability when as electric drive. 4 cl, 2 dwg