Research On Operation Of GIS Equipment In Dongguan Areas

GIS（Gas Insulated Switchgear）which is gas insulation metal closes switch equipment, isone kind form of high-voltage power distribution device. Because of so many advantagessuch as small area, highly reliability, strong security, little maintenance, it is possible for HVand UHV to enter downtown area directly.GIS is putting in use broadly in recent years,Dongguan Power Supply BureauThis article first provides an overview of GIS structure principle features of the worldand the course of development of the domestic GIS, elaborated on the current situation ofDongguan Power Supply Bureau of a GIS installation of the substation management.The article also explains the GIS installation and commissioning of standard processes,and focus discusses how precision, clarity, tightness, humidity (micro water) in four areas tocontrol the GIS installation quality, and clear the acceptance of the GIS equipment. Analysisof GIS international operation and substation management a GIS since the production runaccident, barriers to the situation, this paper also the manufacturers of GIS internal structuralfeatures, the operating mechanism in the form classification different from the past decade,various types of defects fault data statistical analysis of the manufacturer of the installation ofGIS equipment operation and maintenance characteristics, their advantages and disadvantages.Focus Hengli selected500kV substation500kV Japan Mitsubishi HGIS circuit beakermechanical anti-slow separation unit and its agencies pump to suppress the failure of thedefect analysis, abnormal sound of the220kV ShenGao factory GIS current transformer,220kV YueLi substation220kV GIS breaker closing coil burned defects, a Substation220kV252kVGIS tank heating defect from the typical defects to analyze proposed solving andpreventive measures.Summarizes and analyzes the future direction of GIS development and live monitoringmethod of promotion, to improve GIS reliability, reduce the failure of GIS, GIS running statedetection and diagnosis, and the equipment situation, the scientific selection of conditionbased "maintenance "or "regular maintenance".