We present pulse height measurements in drift chambers operated with Xe,CO2 gas mixtures. We investigate the attachment of primary electrons on oxygen and SF6 contaminants in the detection gas. The measurements are compared with simulations of properties of drifting electrons. We present two methods to check the gas quality: gas chromatography and Fe pulse height measurements using monitor dete...

A numerical study investigating the interaction process between a converging shock wave and gas bubble placed at an offset location is presented. As first step, for proofing reliability of used scheme, simulation relevant available experimental findings Hosseini Takayama [“Richtmyer–Meshkov instability induced by cylindrical loading gaseous inhomogeneities,” AIAA Paper No. 2000-2464, 2000] [“St...

Circuit breakers play an extremely important role in power systems, and Sulfur Hexafluoride (hereinafter referred to as SF6) gas is the medium for main functions of circuit breakers, it has insulation arc suppression. After excavation SF6 reports on its application electric equipment recently related literature, inspiring author summarize - unique characters suppression operation principle, exp...

An entrainment defect (also known as a double oxide film or bifilm) acts void containing an entrapped gas when submerged into light-alloy melt, thus reducing the quality and reproducibility of final castings. Previous publications, carried out with Al-alloy castings, reported that this trapped could be subsequently consumed by reaction surrounding volume negative effect defects. Compared Al-all...

Based on the wide application of sulfur hexafluoride (SF6) gas in power industry, analysis and detection its decomposition components have become important technical means for state fault evaluation gas-insulated equipment. The gas-sensitive characteristics adsorption mechanism SnS2 sensor SO2 SOF2 gases were investigated using SOF2, main SF6 components, as target gases. materials prepared, tem...

First generation gas insulated switchgears were constructed with large safety margin. Today’s trend is to reduce the size of the switchgears to save material and costs. With increased field strength due to reduced dimensions as well as increased pressure in the compartments, the influence of surface roughness, surface damages and conducting particles is increasing. Therefore the knowledge of th...