Study On Operation Characteristics Of GIS Combined Electrical Equipment

GIS is referred to as GIS(gas insulated substation).Combined electrical apparatus is in isolating switch,circuit breaker,voltage transformer,current transformer,arrester,high voltage electric appliance casing,bus seven through optimizing design of combined together,through the metal shell combined appliances sealed in sulfur hexafluoride gas insulated six operating environment with good performance in.Combination of electrical appliances and open type substation equipment has the advantages of small occupation area,compared with high reliability,good safety,easy maintenance and long period of maintenance etc..With the development of city land increasingly tense,electricity continuously improve the reliability requirements,the future GIS combination electric appliance will be more widely used in the field of power supply,will also become the research and development of technology of high voltage electrical direction.This paper introduces the structure and function of the GIS basic components and related technical parameters.GIS is studied internal insulation dielectric insulation performance of the sulfur hexafluoride,mainly on the sulfur hexafluoride meteorological chromatography analysis,get run the gas quality of each time period;By field data collected by the GIS equipment and conventional substation equipment insulation and dielectric loss parameters such as comparison,analysis the advantages and disadvantages of two kinds of equipment.The GIS equipment according to design the circuit of ac withstand voltage test,pressure test to test the insulation performance of lightning arrester,and in the process of test sample(s)to be the aging process.Papers on GIS combination of electrical fast transient overvoltage is analyzed,studied the restrictions.At the end of the paper,in combination with the authors understanding of the scene,found the actual installation GIS combination of defects in production,and puts forward the specific solutions.