DEVICE FOR COMPENSATION OF REACTIVE POWER IN HIGH-VOLTAGE NETWORKS Russian patent published in 2020 - IPC H02J3/18 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used for reduction of electric energy losses in high-voltage electric networks with voltage of 6–35 kV with variable non-linear load and increase of throughput capacity of these networks, as well as to improve reliability of compensating devices. Device comprises a compensating plant consisting of three low-voltage cosine capacitors connected by a triangle, and three low-voltage adjustable inductance coils connected in parallel to cosine capacitors, which allow smooth control of RP. Capacity of low-voltage cosine capacitors is calculated for maximum load RP component. To increase reliability and reduce prime cost of compensating plant, low-voltage cosine capacitors and low-voltage adjustable inductance coils are used, which are connected to high-voltage network through power transformer with power of up to 1,000 kVA.

EFFECT: technical result consists in reduction of losses of electric energy in electric networks with voltage of 6–35 kV and increase of their carrying capacity, by smooth control of RP when using low-voltage adjustable inductance coils and low-voltage uncontrolled capacitors in a control system, as well as in improving reliability of compensating devices.

1 cl, 1 dwg