Substation high-voltage isolation switch arrangement structure

Abstract

The invention relates to the technical field of high-voltage switches, and discloses a substation high-voltage isolation switch arrangement structure. Each high-voltage isolation switch includes a first operating mechanism, a second operating mechanism and a third operating mechanism. Two ends of the first operating mechanism are connected onto an A-phase wire at the high-voltage II section busbar side and a first outgoing line, respectively. Two ends of the second operating mechanism are connected onto a B-phase wire and a second outgoing line, respectively. Two ends of the third operating mechanism are connected onto a C-phase wire and a third outgoing line, respectively. Two adjacent sets of high-voltage isolation switches are mounted in a portal frame. Each set of high-voltage isolation switches are mounted in split-phase parallel arrangement according to "2+1". The first, second and third operating mechanisms of the second set of high-voltage isolation switches rotate 180 degrees horizontally and then are arranged and mounted sequentially. According to the invention, the mounting time of equipment is reduced, the modification period is effectively shortened, the modification cost is saved, and good technical and economical benefits are gained.

Description

technical field [0001] The invention relates to the technical field of high-voltage switches, and relates to an arrangement structure of high-voltage isolating switches. Background technique [0002] At present, the 220KV and 110KV buses of the substation adopt double-bus connection mode. In the early construction of 220KV substations, the 220KV and 110KV high-voltage section II bus side disconnectors mostly use single-column single-arm or single-column double-arm vertical telescopic disconnectors. It has the advantages of small footprint and obvious breaking position, but due to the influence of product materials, unreasonable design, insufficient processing accuracy, and poor operating environment, there are many cases of refusal to open and close, and opening and closing are not in place, and there are certain safety hazards. . The 220KV and 110KV high-voltage section II busbar-side isolating switches of newly-built 220KV substations usually adopt a new double-column hor...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a substation high-voltage isolating switch arrangement structure, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem of technical transformation of the existing high-voltage substation without changing the installation position of the original electrical equipment. The installation position of the existing isolating switch cannot meet the problem of safety distance

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