Title :
Bus transfer current switching in GIS by disconnector applications, design criteria and testing
Author_Institution :
Ansaldo T&D, Genoa, Italy
Abstract :
This paper presents results of test performed on a busbar disconnector as one part of a 300 kV gas insulated switchgear development program. Busbar disconnector function in double busbar substation, characteristics required by standards, main parameters of switchgear, design feature and tests results are given and discussed. A low speed disconnector is proposed as an optimal solution regarding values of pre-arcing and arcing time as criteria for wearing of contacts and reliability in service.
Keywords :
busbars; gas insulated switchgear; substations; switching; 300 kV; GIS; arcing time; bus transfer current switching; busbar disconnector; contact wear; design criteria; disconnector applications; double busbar substation; gas insulated switchgear development; low speed disconnector; metal enclosed switchgear; optimal solution; pre-arcing time; reliability; switchgear; testing; Circuit testing; Contacts; Gas insulation; Geographic Information Systems; Motor drives; Performance evaluation; Short circuit currents; Sulfur hexafluoride; Switchgear; Voltage;
Conference_Titel :
Electric Power Engineering, 1999. PowerTech Budapest 99. International Conference on
Conference_Location :
Budapest, Hungary
Print_ISBN :
0-7803-5836-8
DOI :
10.1109/PTC.1999.826712
