Polygonal wiring 220kV GIS power distribution device and arrangement method

Abstract

The invention provides a polygonal wiring 220kV GIS power distribution device and an arrangement method. In the invention, a circuit breaker main ring and incoming and outgoing line loops are arranged, the circuit breaker main ring is arranged in an end-to-end connection mode, the incoming and outgoing line loops are arranged at connection points between circuit breakers in a staggered mode so asto achieve a connection function of electric appliances between different loops and a power supply function of the loops, arrangement of 220kV GIS is realized, an application range of a GIS power distribution device is expanded, and flexibility of main wiring selection in a scheme design of a transformer substation is improved. After the polygonal wiring 220kV GIS power distribution device of theinvention is adopted, a longitudinal width of a 220kV transformer substation power distribution device chamber with a same scale can be reduced from 12m to 8m, a size of a building is reduced by 1/3,and the size of the building and an occupied area of a transformer substation are greatly decreased. A polygonal wiring main ring selects a horizontal circuit breaker structure and overall arrangementis vertical to an incoming and outgoing line direction so that a longitudinal size of the power distribution device is greatly reduced, and a building area of the power distribution device chamber isgreatly decreased.

Description

technical field [0001] The invention relates to the technical field of power transmission and transformation engineering design, in particular to a 220kV GIS power distribution device with polygonal connection and an arrangement method. Background technique [0002] The electrical main wiring is the first part of the electrical design of the substation, and it is also an important part of the power system. The determination of the main wiring is closely related to the integrity of the power system and the reliability, flexibility and economy of the substation itself. [0003] In my country's power grid, the 220kV voltage level is generally used as the backbone power grid in the city and county area, and there are a large number of substations, so the choice of its construction plan needs to take into account both safety and economy. 220kV voltage level substation generally can choose main wiring methods such as double busbar wiring, polygonal, and bridge wiring, such as Fig...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a 220kV GIS power distribution device with polygonal wiring and a layout method, aiming to solve the problem that the polygonal wiring has no applicable GIS layout scheme when selecting the main wiring of the existing substation, and improve the design of the substation scheme. Flexibility in main wiring options

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