METHOD FOR CONTROLLING MAGNETIC BIASING OF ARC-SUPPRESSION COIL

摘要

FIELD: electricity.;SUBSTANCE: method includes the following stages: continuous measurement of the neutral displacement voltage of network and current at the terminals of the arc-suppression coil winding made in the form of two parallel paths with taps, determination of the type of single-phase earth fault according to the parameters of the neutral displacement voltage of the network, selection of the corresponding control algorithm, according to which the necessary power of the reactor is calculated, the level of magnetic biasing and the corresponding value of the DC component of the magnetic biasing EMF, which is induced between the middle points of the parallel paths of the winding of the arc-suppression coil, while aiming of the DC component of the magnetic biasing EMF is realized by an independent energy source.;EFFECT: increase in operation efficiency in the mode of intermittent arc single-phase earth faults.;1 dwg