Developments in computer and communication technologies have enabled unmatched integration of a wide range of substation functions within a computer control system. This new class of application has gone through a great deal of effort into achieveing cost-effective, efficient, secure and high performance of the utility power grid substation operations. The integrated Substation Control System (...

Natural gas is currently the natural substitute of petroleum as an energy source, since the foreseen ending up of this latter in the next decades. As a matter of fact, natural gas is easier to handle, less dangerous to be transported, somehow environmentally more friendly. The gas ducts operate with large flow rates over very long distances at high pressures, which are usually lowered in proxim...

Abstract The internal insulation defects in gas insulated equipment leading to partial discharges will affect the performance of equipment. Among them, surface are a typical type discharge, which often occurs at basin-type insulators. To realize effective discharge detection and degree determination, refined stage division strategy for gas-insulated creeping based on multi-physical information ...

Sulfur hexafluoride (SF₆) gas decomposition results from the energy produced by partial discharge (PD). The detection of SO₂ and H₂S content, as important characteristic components of the decomposition products, is significant in the determination of the insulation level of SF₆ gas and the inside insulation faults of gas-insulated equipment. A number of gas sensors use carbon nanotubes (CNTs). ...

Gas-insulated switchgear malfunctions during power system operation may occur due to electrical, thermal, or human errors in the manufacturing process. The leading causes of insulation deterioration gas-insulated are discharging along surface caused by dirt on insulating material, internal discharge impurities and cavities corona poor assembly construction at site, electric tree channel intense...

The detection of partial discharge and analysis of the composition and content of sulfur hexafluoride SF₆ gas components are important to evaluate the operating state and insulation level of gas-insulated switchgear (GIS) equipment. This paper reported a novel sensing material made of pure ZnO and NiO-decorated ZnO nanoflowers which were synthesized by a facile and environment friendly hydrothe...