Research on Cabin Integrated Equipment Based on GIS

Through the research on the principle of GIS gas insulated switchgear, a GIS-based cabin integrated equipment method is proposed. The insulation characteristics and engineering calculations of SF6 gas are analyzed, which provides a basis for the selection of 220kV and 110kV equipment. Analyzed the applicability of 220kV equipment selection of HGIS equipment and GIS equipment in modular substations. At the same time, it compared the floor area and other indicators, and finally decided to adopt the GIS plan, further optimize the product structure and layout, and improve space utilization It can reduce the equipment footprint and make the layout of the power distribution device more compact. Through the comparison and analysis of the main wiring types of the 110kV single bus three section and double bus wiring, it is found that there are three aspects of reliability, flexibility and economy. Single-bus three-section is better than double-bus wiring, so 110kV is determined to adopt single-bus three-section wiring. Under the premise of meeting the requirements for power supply safety, reliability, and flexibility, 110kV electrical main wiring is optimized to achieve The purpose of simplifying operation and maintenance procedures and saving investment.