Abstract
This article introduces environmentally-friendly metal-enclosed switchgear, and comprehensively summarizes the development status, technical characteristics, technical difficulties and development trends of solid-insulated ring network cabinets and environmentally-friendly gas-insulated switch cabinets. The development status of solid insulated ring network cabinets and environmentallyfriendly gas insulated switch cabinets are reviewed, and their technical characteristics are summarized in terms of volume, structure, maintainability, safety and environmental adaptability. Focus on the analysis and study of the technical difficulties of solid insulated ring network cabinets and environmentally friendly gas insulated switch cabinets, and pointed out the partial discharge control of the surface of the insulating parts, the strengthening of the sealing, the cost control, the recycling and utilization of epoxy resin, the optimization of insulation, and the breaking capacity. The guarantee of the quality, the selection and recovery of mixed gas are their future development trends. It provides a useful reference for the development and improvement of environmentally-friendly metal-enclosed switchgear.
Highlights
Medium-voltage switchgear is widely used in the power distribution system of the power grid and the majority of medium-voltage users
2 Definition and classification of environmentally friendly metal enclosed switchgear. When it comes to environmental protection, people usually think of reducing greenhouse gas emissions
The insulating cylinder is made of epoxy resin, and the bus bar is encapsulated with silicon rubber
Summary
Medium-voltage switchgear is widely used in the power distribution system of the power grid and the majority of medium-voltage users. About 50% of SF6 produced globally is used in the power industry, and 80% of this is used in switchgear When it comes to environmental protection, people usually think of reducing greenhouse gas emissions. Friendly switchgear needs to be judged to prevent the global greenhouse effect, and to make a comprehensive judgment from some other environmental protection indicators. It can be divided into three categories: solid insulated switchgear (SIS), gas insulated switchgear that does not use SF6 (such as dry air insulated switchgear or N2 insulated switchgear), and gas insulated switchgear that rarely uses SF6 , that is, inflatable Pressure and SF6 charge ratio should be restricted (for example, SF6 and N2 mixed gas insulated switchgear). (2) General switchgear-rated current 630A and above, breaking current 25kA and above
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
