OPGW (optical fiber composite overhead ground wire) terminal reserved cable device of ultra-high voltage transformer substation

Abstract

This application discloses an OPGW (optical fiber composite overhead ground wire) terminal reserved cable device of an ultra-high voltage transformer substation, which avoids the problem of strand breakage due to interturn electric discharge erosion of an optical cable caused by interturn induced voltage existing in the wound optical cable, and the problem of the strand breakage due to galvanic corrosion generated due to contact between the optical cable and a binding iron wire, and is safe, reliable and attractive. The device comprises a nonmetal seat disk and a nonmetal cover disk, wherein the nonmetal seat disk comprises an inner disk and a winding post that are formed integrally; the inner disk is located on the front surface of the nonmetal seat disk; the winding post is erected in the center of the inner disk; an OPGW terminal reserved cable is wound on the winding post; four cable limiting distance adjustment holes are uniformly formed on the edge of the inner disk; the nonmetal cover disk comprises an outer disk; four cable limiting distance adjustment holes corresponding to the four cable limiting distance adjustment holes in the inner disk are formed in the outer disk; and the inner disk and the outer disk are fixed by inserting cable limiting pins into the cable limiting distance adjustment holes.

Description

technical field [0001] The invention relates to the technical field of electricity, in particular to an OPGW terminal reserved cable device of an ultra-high voltage substation. Background technique [0002] With the continuous development of society, electric power has become an indispensable energy source for people's production and life, so the technical development of substations closely related to electric power has attracted more and more attention. [0003] At present, the OPGW (Optical Fiber Composite Overhead Ground Wire, optical fiber composite overhead ground wire) optical cable terminal reserved cable device in the 750KV ultra-high voltage substation of the domestic power system is based on the conventional technology of the telecommunications industry, and the pre-cable is made of metal flat steel or yuan steel. fork plate. The telecommunications industry’s technical solution for designing optical cable reserved fork trays has not been considered for use in the ...

AI Technical Summary

Problems solved by technology

[0005] (1) The ferromagnetic material forms a closed magnetic circuit, and the magnetic circuit passes around the OPGW reserved cable, providing electromagnetic induction conditions for the OPGW reserved cable, causing the induced voltage between the OPGW reserved cable turns to increase, resulting in the OPGW reserved cable turns Intermittent discharge electric erosion and broken strands

[0006] (2) The process of bundling the OPGW reserved cable with iron wire material causes the iron wire to directly contact the OPGW optical cable, causing the problem of dissimilar metal galvanic corrosion and broken strands

Cause major equipment hidden dangers to the optical cable lines of the power grid, directly threatening the safe production of the power grid

Images