In the power industry, sulfur hexafluoride (SF 6 ) as an insulating gas is widely used in gas-insulated switchgears (GISs). Owing to latent inner insulation defects of GIS, various SF decompositions are generated process partial superheating and discharge (PD). The decomposition components concentrations different under PD types. A number sensors were reported for detection these decompositions...

Pulses with different amplitudes occur when an inner partial discharge fault exists in SF6-gas-insulated DC high-voltage electrical equipment. SF6 decomposes following complex physical and chemical processes. Discussing and quantifying the mathematical relationship of pulse discharge quantities to SF6 decomposition component characteristics is helpful to evaluate and predict the insulation faul...

Experiments were carried out to evaluate the performance of a medium grade LHR diesel engine consisting of air gap insulated piston with 3-mm air gap, with superni (an alloy of nickel) crown and air gap insulated liner with superni insert with different operating conditions of jatropha oil in crude from and biodiesel form with varied injection timing and injection pressure. Performance paramete...

Uprating of existing Overhead Lines is one approach to increase their capacity. APG is considering uprating certain 220 kV-lines to 380 kV in the near future. To this end new technical components have been developed. However requirements for an uprating are not exclusively technical, standards and legal aspects, environmental impacts as well as economical considerations have to be investigated ...