POWER SUPPLY SYSTEM OF ELECTRICAL CENTRIFUGAL PUMP UNIT Russian patent published in 2021 - IPC H02G9/06 H02K11/33 F04B47/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, namely to equipment for oil production, particularly to a design of a power supply system for an electrical submersible pump unit (ESP unit) at production and injection wells. The power supply system of an electrical submersible pump unit comprised of wellhead equipment of production and injection wells, surface electrical equipment: a transformer substation, a control station, electrical cable lines and a wellhead extension. The electrical cable line is laid underground in a protective casing. Wherein the protective casing is made as a pipe, filled with filler and has stopper plugs at the ends of the branches. Posts are used to attach the protective casing. The electric cable line is laid in the protective casing between the control station and the outlet near the wellhead and is connected with the wellhead extension, which allows dismantling the charging terminal due to lack of demand and thereby reducing voltage losses at the connection points of the electrical cable line.

EFFECT: improved ergonomic characteristics and reliability.

1 cl, 2 dwg