Compared to traditional gas insulated equipment, environmentally friendly gas insulated ring main units use more environmentally friendly media, resulting in less environmental pollution; All high-voltage live parts are sealed in stainless steel gas boxes, which are not affected by the environment and can be used in harsh environments; Modular design allows for diverse unit combinations to be achieved by connecting various modules through dedicated busbar connectors, maximizing the satisfaction of complex and diverse distribution design schemes in various places; The equipment structure of environmentally friendly gas insulated ring main unit is simple, easy to maintain, and saves maintenance costs and time. Compared with traditional gas insulated equipment, it reduces many unnecessary processes, reduces equipment damage, and also makes maintenance costs lower.