Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Dielectric_gas> ?p ?o }
- Dielectric_gas abstract "A dielectric gas, or insulating gas, is a dielectric material in gaseous state. Its main purpose is to prevent or rapidly quench electric discharges. Dielectric gases are used as electrical insulators in high voltage applications, e.g. transformers, circuit breakers (namely sulfur hexafluoride circuit breakers), switchgear (namely high voltage switchgear), radar waveguides, etc.A good dielectric gas should have high dielectric strength, high thermal stability and chemical inertness against the construction materials used, non-flammability and low toxicity, low boiling point, good heat transfer properties, and low cost.The most common dielectric gas is air, due to its ubiquity and low cost. Another commonly used gas is a dry nitrogen.In special cases, e.g., high voltage switches, gases with good dielectric properties and very high breakdown voltages are needed. Highly electronegative elements, e.g., halogens, are favored as they rapidly recombine with the ions present in the discharge channel. The halogen gases are highly corrosive. Other compounds, which dissociate only in the discharge pathway, are therefore preferred; sulfur hexafluoride, organofluorides (especially perfluorocarbons) and chlorofluorocarbons are the most common.The breakdown voltage of gases is roughly proportional to their density. Breakdown voltages also increase with the gas pressure; many gases however have limited upper pressure due to their liquefaction.The decomposition products of halogenated compounds are highly corrosive, the occurrence of corona discharge should therefore be prevented.Build-up of moisture can degrade dielectric properties of the gas. Moisture analysis is used for early detection of this.Dielectric gases can also serve as coolants.Vacuum is an alternative for gas in some applications.Mixtures of gases can be used where appropriate. Addition of sulfur hexafluoride can dramatically improve the dielectric properties of poorer insulators, e.g. helium or nitrogen. Multicomponent gas mixtures can offer superior dielectric properties; the optimum mixtures combine the electron attaching gases (sulfur hexafluoride, octafluorocyclobutane) with molecules capable of thermalizing (slowing down) accelerated electrons (e.g. tetrafluoromethane, fluoroform. The insulator properties of the gas are controlled by the combination of electron attachment, electron scattering, and electron ionization.Atmospheric pressure significantly influences the insulation properties of air. High-voltage applications, e.g. xenon flash lamps, can experience electrical breakdowns at high altitudes.* the density is approximate; it is normally specified at atmospheric pressure, the temperature may vary, though it is mostly 0 °C.".
- Dielectric_gas wikiPageID "27689481".
- Dielectric_gas wikiPageLength "10936".
- Dielectric_gas wikiPageOutDegree "87".
- Dielectric_gas wikiPageRevisionID "703081337".
- Dielectric_gas wikiPageWikiLink 1,1,1,2-Tetrafluoroethane.
- Dielectric_gas wikiPageWikiLink 1,1,1,3,3,3-Hexafluoropropane.
- Dielectric_gas wikiPageWikiLink 1,2-Dichlorotetrafluoroethane.
- Dielectric_gas wikiPageWikiLink Ammonia.
- Dielectric_gas wikiPageWikiLink Argon.
- Dielectric_gas wikiPageWikiLink Atmosphere_of_Earth.
- Dielectric_gas wikiPageWikiLink Atmospheric_pressure.
- Dielectric_gas wikiPageWikiLink Beryllium_fluoride.
- Dielectric_gas wikiPageWikiLink Beryllium_oxide.
- Dielectric_gas wikiPageWikiLink Boiling_point.
- Dielectric_gas wikiPageWikiLink Breakdown_voltage.
- Dielectric_gas wikiPageWikiLink Carbon_dioxide.
- Dielectric_gas wikiPageWikiLink Carbon_monoxide.
- Dielectric_gas wikiPageWikiLink Carrier_generation_and_recombination.
- Dielectric_gas wikiPageWikiLink Category:Dielectric_gases.
- Dielectric_gas wikiPageWikiLink Category:Dielectrics.
- Dielectric_gas wikiPageWikiLink Category:Electric_power_distribution.
- Dielectric_gas wikiPageWikiLink Category:Electric_power_systems_components.
- Dielectric_gas wikiPageWikiLink Chlorine.
- Dielectric_gas wikiPageWikiLink Chlorofluorocarbon.
- Dielectric_gas wikiPageWikiLink Circuit_breaker.
- Dielectric_gas wikiPageWikiLink Coolant.
- Dielectric_gas wikiPageWikiLink Corona_discharge.
- Dielectric_gas wikiPageWikiLink Corrosive_substance.
- Dielectric_gas wikiPageWikiLink Density.
- Dielectric_gas wikiPageWikiLink Dichlorodifluoromethane.
- Dielectric_gas wikiPageWikiLink Dielectric.
- Dielectric_gas wikiPageWikiLink Dielectric_strength.
- Dielectric_gas wikiPageWikiLink Disulfur_decafluoride.
- Dielectric_gas wikiPageWikiLink Electric_arc.
- Dielectric_gas wikiPageWikiLink Electric_discharge_in_gases.
- Dielectric_gas wikiPageWikiLink Electron_ionization.
- Dielectric_gas wikiPageWikiLink Electron_scattering.
- Dielectric_gas wikiPageWikiLink Electronegativity.
- Dielectric_gas wikiPageWikiLink Fluorine.
- Dielectric_gas wikiPageWikiLink Fluorocarbon.
- Dielectric_gas wikiPageWikiLink Fluoroform.
- Dielectric_gas wikiPageWikiLink Global_warming_potential.
- Dielectric_gas wikiPageWikiLink Halocarbon.
- Dielectric_gas wikiPageWikiLink Halogen.
- Dielectric_gas wikiPageWikiLink Heat_transfer.
- Dielectric_gas wikiPageWikiLink Helium.
- Dielectric_gas wikiPageWikiLink Hexafluoroethane.
- Dielectric_gas wikiPageWikiLink High_voltage.
- Dielectric_gas wikiPageWikiLink Hydrogen.
- Dielectric_gas wikiPageWikiLink Hydrogen-cooled_turbo_generator.
- Dielectric_gas wikiPageWikiLink Hydrogen_sulfide.
- Dielectric_gas wikiPageWikiLink Insulator_(electricity).
- Dielectric_gas wikiPageWikiLink Ion.
- Dielectric_gas wikiPageWikiLink Liquefaction.
- Dielectric_gas wikiPageWikiLink List_of_refrigerants.
- Dielectric_gas wikiPageWikiLink Moisture.
- Dielectric_gas wikiPageWikiLink Moisture_analysis.
- Dielectric_gas wikiPageWikiLink Neon.
- Dielectric_gas wikiPageWikiLink Nitrogen.
- Dielectric_gas wikiPageWikiLink Nitrous_oxide.
- Dielectric_gas wikiPageWikiLink Octafluorocyclobutane.
- Dielectric_gas wikiPageWikiLink Octafluoropropane.
- Dielectric_gas wikiPageWikiLink Organofluorine_chemistry.
- Dielectric_gas wikiPageWikiLink Oxygen.
- Dielectric_gas wikiPageWikiLink Ozone_depletion_potential.
- Dielectric_gas wikiPageWikiLink Perfluorobutane.
- Dielectric_gas wikiPageWikiLink Phosgene.
- Dielectric_gas wikiPageWikiLink Radar.
- Dielectric_gas wikiPageWikiLink Spark_gap.
- Dielectric_gas wikiPageWikiLink Sulfur_dioxide.
- Dielectric_gas wikiPageWikiLink Sulfur_hexafluoride.
- Dielectric_gas wikiPageWikiLink Sulfur_hexafluoride_circuit_breaker.
- Dielectric_gas wikiPageWikiLink Switchgear.
- Dielectric_gas wikiPageWikiLink Tetrafluoromethane.
- Dielectric_gas wikiPageWikiLink Thyratron.
- Dielectric_gas wikiPageWikiLink Toxicity.
- Dielectric_gas wikiPageWikiLink Transformer.
- Dielectric_gas wikiPageWikiLink Vacuum.
- Dielectric_gas wikiPageWikiLink Waveguide.
- Dielectric_gas wikiPageWikiLink X-ray.
- Dielectric_gas wikiPageWikiLinkText "Dielectric gas".
- Dielectric_gas wikiPageWikiLinkText "dielectric gas".
- Dielectric_gas wikiPageWikiLinkText "gas insulated".
- Dielectric_gas wikiPageWikiLinkText "gaseous dielectric medium".
- Dielectric_gas wikiPageWikiLinkText "gaseous".
- Dielectric_gas wikiPageWikiLinkText "insulator gas".
- Dielectric_gas wikiPageUsesTemplate Template:Chem.
- Dielectric_gas wikiPageUsesTemplate Template:Reflist.
- Dielectric_gas subject Category:Dielectric_gases.
- Dielectric_gas subject Category:Dielectrics.
- Dielectric_gas subject Category:Electric_power_distribution.
- Dielectric_gas subject Category:Electric_power_systems_components.
- Dielectric_gas hypernym Material.
- Dielectric_gas type ChemicalCompound.
- Dielectric_gas type Component.
- Dielectric_gas type Dielectric.
- Dielectric_gas comment "A dielectric gas, or insulating gas, is a dielectric material in gaseous state. Its main purpose is to prevent or rapidly quench electric discharges. Dielectric gases are used as electrical insulators in high voltage applications, e.g.".
- Dielectric_gas label "Dielectric gas".
- Dielectric_gas sameAs Q5274910.