LIU Jing-bo, WU Sheng-bin, LI Pei-li, et al. Technology Status and Development Trends of 72.5kV Environmentally Friendly GIS[J]. High voltageapparatus, 2012, 48(3): 99-103.
LIU Jing-bo, WU Sheng-bin, LI Pei-li, et al. Technology Status and Development Trends of 72.5kV Environmentally Friendly GIS[J]. High voltageapparatus, 2012, 48(3): 99-103. DOI: 10.13296/j.1001-1609.hva.2012.03.020.
The greenhouse effect of sulfur hexafluoride(SF6)is 23 900 times that of the carbon dioxide(CO2).Therefore
it has become the development trends in the future that to reduce the use of SF6 and to adopt environmentally friendly gas as the insulating medium in the high voltage apparatus.With the development of the technology
especially the development of the composite insulation technology
various types of 72.5 kV environmentally friendly gas-insulated metal-enclosed switchgear(GIS) have appeared.Different types of the 72.5 kV environmentally friendly GIS which appeared at home and abroad
have been classified in the paper
and typical products have been presented.Meanwhile
the key technology
the composite insulation technology
has been investigated in the paper.The development trends of the environmentally friendly products are also discussed.