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In order to replace the SF6 gas with strong greenhouse effect in the high-voltage switchgear, CO2 has become one of the hotspots. In this paper, LW35-40.5(G)/T2500(3150)-31.5 gas-blast circuit-breaker is used as the research object to study the dielectric recovery characteristics of CO2 gas-blast arc chamber under no-load breaking, so that the theoretical basis for the development of CO2 circuit-breaker...
Manufacturers have paid more and more attention to solid insulation Ring Main Unit (RMU). The usage of RMU is needed more and also the requirement to its performance is higher. In this paper, a 12kV solid insulation RMU has been taken as a research object. Realistic 3-D simulation models were built in Solidworks software. A simplified model of a solid insulation RMS was setup with or without shielding...
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