METHOD FOR BALANCING PHASE VOLTAGES OF A NETWORK AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC H02J3/00 

FIELD: electrical equipment.

SUBSTANCE: field of application: electrical equipment. Device for balancing of phase voltages of electric network includes connected to the network connection transformer and arc suppressor reactor, which working winding is connected between neutral terminal of transformer and "ground". Receptor enveloped by negative feedback is connected to reactor secondary winding, wherein amplifier output is connected to secondary winding through current-limiting device, and feedback signal is removed from secondary or additional winding of arc suppressor. In the second version of the device parallel to the outputs of the operating winding of the arc-suppression coil the primary winding of the additional transformer is connected, to outputs of the secondary windings of which the power amplifier covered by the negative feedback is connected, wherein the amplifier output is connected to the secondary winding of the additional transformer through the current-limiting device, and the feedback signal is removed from the secondary transformer secondary winding leads.

EFFECT: reduced asymmetry of phase voltages of the mains relative to the mains and high reliability of electrical equipment.

2 cl, 2 dwg