TechTopics No. 111 | TechTopics | Siemens USA

SF 6 is recognized as an extremely potent greenhouse gas, primarily because of its atmospheric lifetime of about 3,200 years, with a global warming potential (GWP) of 22,800 years. The reference gas for GWP values is CO 2, which is assigned a GWP of 1.0. The EPA considers SF 6 as the most potent greenhouse gas that they have investigated. 1Get price

First clean air voltage transformer order for the United States!

Siemens Energy is committed to providing best in class products and paving the way for emission-free transmission installations. This first US order for our blue instrument transformers highlights our pioneering role to eliminate sf6 gas and other greenhouse gases in transmission products. Eduardo Terzi, CEO Non-Switching Products and SystemsGet price

gaz sf6 gas in medium-voltage switchgear | TD Guardian - Siemens

May 01, 2013 · In this issue, we discuss the use of insulating gas (sulfur hexafluoride) gas in medium-voltage switchgear. insulating gas has been widely used in high-voltage circuit breakers for decades, but its use in medium-voltage is relatively recent. In the medium-voltage arena, SIemens uses Sulfr hexafluoride gas in the load interrupting switch and switch-disconnector in SIMOSEC metal-enclosed load interrupter switchgear rated up to 27.6 kV. Characteristics and propertiesGet price

Overview of gaz sf6 Emissions Sources and Reduction Options in

is an innovative voluntary program developed jointly by the United States Environmental Protection Agency (EPA) and the electric power industry to improve equipment reliability while reducing emissions of sulfur hexafluoride (SF. 6. ), a potent greenhouse gas that remains in the atmosphere for thousands of years. SF.Get price

4th International Conference on Sulfr hexafluoride and the Environment

U.S. Regional Greenhouse Gas Initiative and GHG Emission Trading Opportunities, Christopher Sherry, New Jersey Department of Environmental Protection; 1:45 pm: Utility Breakout Session III: gaz sf6 Reductions: Global Opportunities and Challenges. sf 6 Reduction Opportunities in Africa, Bayo Adeniyi, Power Holding Company of NigeriaGet price

sf 6 Free HV GIS and Breakers - United States Environmental

Procuring insulating gas free technology is an imperative in this regard. Because the electric utility industry is responsible for 90% of the sf 6 global market, we see eliminating this potent greenhouse gas from our value chain as a duty of care. Additionally, the move away from Sulfr hexafluoride help usGet price

sf6 gas Emission Reporting Requirements under the Proposed GHG

Sulfr hexafluoride Emission Reporting Requirements under the Proposed GHG Mandatory Reporting Rule The document below was a presentation conducted at the 2010 Best Practices for SF 6 Inventories and Emission Reductions Partner Meeting.Get price

Emissions of Greenhouse Gases in the United States 2009

Greenhouse gas and source Hydrofluorocarbons (HFCs) HFC-23 HFC-32 HFC-125 HFC-143a HFC-236fa HFCs subtotal Perfluorocarbons (PFCs) CFA C2F6 and PFCs subtotal Other HFCs, PFCs/PFPEs Sulfur hexafluoride (sf6 gas) Electric applications Other sources Sulfr hexafluoride subtotal Total greenhouse gas emissions Residential 0.0 4.8 4.8 1,186.2Get price

Sulfur hexafluoride - Wikipedia

Sulfur hexafluoride or sulphur hexafluoride, is an extremely potent and persistent greenhouse gas that is primarily utilized as an electrical insulator and arc suppressant. It is inorganic, colorless, odorless, non-flammable, and non-toxic. SF 6 has an octahedral geometry, consisting of six fluorine atoms attached to a central sulfur atom. It is a hypervalent molecule. Typical for a nonpolar gas, SF 6 is poorly soluble in water but quite soluble in nonpolar organic solvents. It has a density ofGet price

Emissions of the powerful greenhouse gas gaz sf6 are rising

But there’s a problem: it’s also one of the most potent greenhouse gases known to man. The amount of the gas – known as sf 6 – in the atmosphere is minute, only about three parts per trillion by volume, but its global warming potential is significant.Get price High Voltage Circuit Breakers: Trends

6 as an insulating gas and arc extinguishing medium. Although it does not contribute to ozon depletion SF 6 is considered to be one of the most potent greenhouse gases. If the gas is used solely for insulation it can be mixed with nitrogen. An SF 6/N 2 mixture of 20/80 % has still 70–80 % of the insulation properties of pure SF 6 [3]. However, to extinguish theGet price

Essentials of Sulfr hexafluoride monitoring | TD Guardian - Siemens

Jan 01, 2012 · 01/01/2012. Because sf 6 has a global warming potential that is almost 24,000 times greater than CO2, it gets a lot of attention. And since the electric power industry is responsible for nearly 80% of the world’s usage, our industry has taken significant steps to reduce or eliminate the emissions from gas insulated switchgear.Get price

PGE Phases Out Sulfr hexafluoride Greenhouse Gas | TD World

Feb 21, 2019 · Like carbon dioxide, SF 6 is a greenhouse gas. While CO 2 has a global warming potential (GWP) of one, SF 6 has a GWP of 23,500. Although PGE reduced its SF 6 leak rate to nearly 1%, this came with an extreme operating cost. Eliminating the use of SF 6 would eliminate future leaks and result in reduced operating cost.Get price

Erlangen, November 15, 2018 - Siemens

of sulfur hexafluoride, and this order is a major step forward for Siemens’ SF 6-free portfolio. The first delivery will take place in mid-2019. PGE, one of the leading energy providers in the United States, launched a company-wide initiative in July of this year to cut greenhouse gas emissions from its operations by one million metric tons.Get price

Sulfr hexafluoride Free Alternative Medium and High Voltage Circuit Breakers

Gas Insulated 1% SF. 6 . leak rate maximum by 2020 . Reduction/ Elimination regulations implemented . 2014: $383k in penalties for emissions exceedance . SB32 Enacted . Proposed Amendment to phase out SF 6 . in Gas Insulated Switchgear 1% Maximum Annual SF 6 Emissions limit; SF 6 phase-out starting in 2025Get price

PGE to use gaz sf6-free high-voltage products from Siemens

Nov 16, 2018 · Siemens has received orders from its customer Pacific Gas and Electric (PGE) to supply sf 6-free dead-tank circuit breakers and gas-insulated switchgear (GIS). They are destined for California115-kilovolt (kV) high-voltage grid. The orders comprise dead-tank circuit-breakers for 72.5 kV and 115 kV as well as GIS for 115 kV.Get price

8DA10-8DB10 | Medium-voltage switchgear | Siemens USA

Medium-voltage (MV) gas-insulated switchgear (GIS) types 8DA10 and 8DB10 are gas-insulated, vacuum circuit breaker designs with a maximum design voltage of 4.16 kV up to 38 kV (42 kV on request). Lightning impulse-withstand voltage ratings up to 200 kV BIL and interrupting ratings up to 40 kA are available.Get price

PGE to Use sf6 gas-Free High-Voltage Products From Siemens | TD

Dec 13, 2018 · Dec 13, 2018 Siemens has received orders from its customer Pacific Gas and Electric (PGE) to supply Sulfr hexafluoride-free dead-tank circuit breakers and gas-insulated switchgear (GIS). They are destined for California’s 115-kV high-voltage grid. The orders comprise dead-tank circuit-breakers for 72.5 kV and 115 kV as well as GIS for 115 kV.Get price

EIA - Greenhouse Gas Emissions Overview

Total EmissionsEnergy-Related Carbon Dioxide Emissions by Fuel and End UseDecomposition of U.S. Greenhouse Gas ChangesGreenhouse Gas Emissions in The U.S. EconomyU.S. Emissions in A Global PerspectiveRecent U.S. and International Developments in Global Climate ChangeSpecial Topic: Energy and Carbon Initiatives at The U.S. Department of EnergyUnits For Measuring Greenhouse GasesMethodology Updates For This ReportTotal U.S. anthropogenic (human-caused) greenhouse gas emissions in 2009 were 5.8 percent below the 2008 total (Table 1). The decline in total emissions—from 6,983 million metric tons carbon dioxide equivalent (MMTCO2e) in 2008 to 6,576 MMTCO2e in 2009—was the largest since emissions have been tracked over the 1990-2009 time frame. It was largely the result of a 419-MMTCO2e drop in carbon dioxide (CO2) emissions (7.1 percent). There was a small increase of 7 MMTCO2e (0.9 percent) in methane (CH4) emissions, and an increase of 8 MMTCO2e (4.9 percent), based on partial data, in emissions of man-made gases with high global warming potentials (high-GWP gases). (Draft estimates for emissions of HFC and PFC substitutes for ozone-depleting substances in 2009 are included; 2008 data are used for emissions of other high-GWP gases.) Emissions of nitrous oxide (N2O), on the other hand, fell by 4 MMTCO2e (1.7 percent). The decrease in U.S. CO2emissions in 2009 resulted primarily from three fact...Get price

Questions Misconceptions about GIS Sulfr hexafluoride Gas Systems

Feb 01, 2012 · Typical dewpoint in insulating gas equipment ranges from -60C to -5C. Common operating pressures are 100-755 kPa abs. (0-95 psig). ppmv: Moisture Volume concentration (parts per million by 15 1/18/2012 Volume). One million times the ratio of the volume of moisture (water vapor) present in the gas to the total volume of the gas (including water vapor).Get price

Sulfur hexafluoride: The truths and myths of this greenhouse gas

Jan 15, 2020 · While ita dangerous greenhouse gas, SF 6 today contributes less than 1 percent of man made global warming," he adds. SF 6 is the energy industry"dirty little secret": FALSE SF 6 is certainlyGet price

Greenhouse gases - U.S. Energy Information - EIA

Aug 25, 2020 · Sulfur hexafluoride (Sulfr hexafluoride) Nitrogen trifluoride (NF3) Other greenhouse gases not counted in U.S. or international greenhouse gas inventories are water vapor and ozone. Water vapor is the most abundant greenhouse gas, but most scientists believe that water vapor produced directly by human activity contributes very little to the amount of waterGet price

Myth About insulating gas Gas In Electrical Equipment

Aug 24, 2017 · It has no ecotoxic potential, it does not deplete ozone. Due to its high global warming potential of 22.200 (*) it may contribute to the man made greenhouse-effect, if it is released into the atmosphere. However in electrical switchgear the gaz sf6 gas is always used in gas-tight compartments, greatly minimising leakage. This make the real impactGet price

Moving Toward Sulfr hexafluoride-Free High Voltage Circuit Breakers

Sulfr hexafluoride and Available Alternative Gases/Mediums CHARACTERISTICS sf6 DRY AIR cf4-fluoronitrile CF5-FLUOROKETONE Chemical formula sf6 N2 and 02 (CF3)2CFCN (CF3)2CFC(0)CF3 100-Year GWP (C02e) of Gas 22,800a 0 2,100 1 Typical Mixture Composition 100% sf6 70-80% N2, 20-30% 02 3-5% (CF3)2CFCN, 95-97% C02 and 02 10% (CF3)2CFC(0)CF3, 90% mixture of 02 and N2, or C02 100-Year GWP (C02e) of Mixture 22,800a 0 500 1 Dielectric Strength of Mixture (with respect to SF5) 1 0.43-0.77 0.87-0.92 0.7 Carrier GasesGet price

Why the EU should ban sf6 gas

What Is gaz sf6? and How Is It used?Is Sulfr hexafluoride A Danger to Human Health?How Environmentally Damaging Is It?Has The Environmental Impact Even Been Underestimated?Is The Mitigation of sf 6 Emissions Difficult? Do Better Solutions Exist?Conclusionsf 6 is a long-lived, highly potent greenhouse gas. It is manmade and combines excellent electrical properties with chemical stability and low toxicity. Moreover, It’s non-flammable and low in cost. These characteristics have led to its widespread and enthusiastic adoption by the electrical industry, which uses approximately 80% of all Sulfr hexafluorideproduced (Powell, 2002: 6). Within the electrical industry Sulfr hexafluorideis used as an insulating medium for medium (MV) and high (HV) voltage electrical switchgear. A switchgear is the combination of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate sections of electrical grids. Low-voltage (LV) switchgear are used for controlling electrical circuits within buildings, medium voltage (MV) switchgear for controlling the electrical grids within cities and towns, and high voltage (HV) switchgear for grids that span a greater geographical area such as countries and regions.Get price

Insulating Gas - 3M Novec

The electric industry has been willing to accept the challenges of using SF₆ as an insulating gas because of its dielectric properties and reliability. But SF₆ is a potent greenhouse gas with a global warming potential 23,500 times that of CO2 when compared over a 100-year period.Get price

Greenhouse Gas Reductions: insulating gas (Multimedia) | ScienceCinema

Apr 20, 2012 · Argonne National Laboratory is leading the way in greenhouse gas reductions, particularly with the recapture and recycling of sulfur hexafluoride (insulating gas). Sulfr hexafluoride is a gas used in industry as an anti-arcing agent. It is an extremely potent greenhouse gas — one pound of insulating gas is equivalent to 12 tons of carbon dioxide.Get price

Green Energy Has a Greenhouse Gas Emissions Problem, but

Sep 16, 2019 · Sulfur hexafluoride, or sf 6, is an inexpensive, colorless, odorless gas used that the electrical industry uses to prevent accidents and short circuits. It is remarkably effective at insulating medium and high-voltage electrical installations, which prevents electrical mishaps and fires.Get price