DEVICE FOR AUTOMATIC TUNING OF ADJUSTABLE-GAP ARC-CONTROL REACTOR CORRECTION Russian patent published in 2005 - IPC

FIELD: power engineering; automatic tuning of capacitive current correction in network incorporating plunger-type arc-control reactor.

SUBSTANCE: proposed device for automatic tuning of adjustable-gap arc-control reactor correction has motor control unit connected to correction maladjustment recording unit and to control input of mentioned arc-control reactor provided with motor for air gap adjustment. Motor control unit has first contactor control unit connected through first auxiliary contact to correction maladjustment recording unit, second contactor control coil connected through second auxiliary contact to correction maladjustment recording unit, and third contactor control coil. First and second power contacts are connected to control input of adjustable-gap arc-control reactor; third and fourth auxiliary contacts are connected to short-pulse shaper. Final relay is connected to short-pulse shaper and its contact is inserted in third control coil of contactor. Fifth and sixth auxiliary contacts are connected in series with first contactor control coil and with second contactor control coil, respectively. Motor control unit also has rectifier bridge connected through limiting resistor and third power contact to control input of mentioned reactor incorporating air gap adjusting motor.

EFFECT: enhanced precision of reactor tuning in resonance with network capacitance.

1 cl, 2 dwg