±1100kv indoor arrangement of dry-type hollow smoothing reactor voltage equalizing device

Abstract

The invention relates to a voltage grading device for a + / -1,100-kV indoors-arranged dry-type air-core smoothing reactor. The voltage grading device comprises a reactor body (3), a lightning rod (14) and a supporting system (10), and seven circles of segmented grading rings are arranged on the reactor body (3) and the supporting system (10); and multiple layers of ring-type grading rings are arranged on the lightning rod (14). According to the voltage grading device, by adopting the configuration structure of multiple circles of the segmented grading rings and multiple ring-type grading rings, configuration is reasonable and passes simulation calculation and experiment verification, the electric field distribution uniformity can be achieved maximally, the surface electric field intensity of the + / -1,100-kV indoors-arranged dry-type air-core smoothing reactor is effectively reduced, the corona and the electric erosion loss which are generated at the end of the + / -1,100-kV indoors-arranged dry-type air-core smoothing reactor and the high-voltage sides of post insulators are effectively inhibited, the corona discharging problem generated at the tip of a metal end frame of the + / -1,100-kV indoors-arranged dry-type air-core smoothing reactor after the system voltage is increased is solved, and then the environment problems such as audible noise and radio interference are solved.

Description

Technical field [0001] The present invention relates to the technical field of transformer protection equipment, in particular to a ±1100kV indoor arrangement dry-type hollow smoothing reactor voltage equalization device. Background technique [0002] The development of large-capacity, high-efficiency, and long-distance advanced power transmission technologies such as UHV is a clear requirement in the national "13th Five-Year Plan" outline. The development of UHV is the top priority of the grid development in the 13th Five-Year Plan period, and DC transmission projects are an important part of it. At the same time, the 13th Five-Year Plan period is a critical period for the innovation and development of DC transmission technology. To reach a new level and further improve the technical level of DC transmission, State Grid Corporation will improve the advancement, adaptability and economy of DC projects through technical innovations such as ±1100kV, multi-terminal DC and double-cir...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a ±1100kV indoor dry-type hollow smoothing reactor pressure equalization device to solve the technical problems of uneven electric field, high corona and electric corrosion in the prior art

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