HIGH-VOLTAGE CIRCUIT Russian patent published in 2009 - IPC H02G7/16 H02J3/18 

FIELD: electrical engineering.

SUBSTANCE: invention relates to power engineering, particularly to electrical protection of naked wires of aerial power transmission lines. High-voltage circuit (HVC) comprises the main and bypass systems of collecting buses. Power transformer is connected to aforesaid system. Every aerial power transmission line is connected to both aforesaid systems. Additionally, shunting static capacitor bank is connected to bypass system. Proposed circuit comprises two bypass bus systems whereto one of the two-circuit HVCs is connected. Both distant ends of the said two-circuit HVCs are connected together with the help of intercircuit disconnector, while HVC is connected to one of bypass buses. Proposed circuit can have two additional disconnectors to interconnect high- and medium-voltage bypass buses. Ice and snow stuck to wires are shaked off by electromagnetic effect of HVC direct and reverse current interaction initiated by passing the latter for several seconds in the loop of both HVC circuits connected in series.

EFFECT: reduced time and scope of routing HVC switching.

4 cl, 3 dwg