Trafag AG - Your specialist for sensors

Trafag stands for precise, reliable and maintenance-free instruments developed for the monitoring of sf 6 and other gases in the field of high- and medium-voltage switchgear.Get price

sf 6 Gas Density Sensors | TRAFAG

The Gas Density Sensor uses a quarz tuning fork to sense gas density directly – a unique technology patented by Trafag. With the delivery of continuous output signals (analogue or digital) from this electronically operating sensor, Trafag opens new paths for the energy distribution industry. Utilizing the analogue or digital signal, comprehensive sf 6 gas monitoring or gaz sf6 gas trend analysis of switchgear components is implemented easily.Get price

Gas density of gaz sf6 and other gases - Trafag AG

Gas density. Trafag gas density sensors are monitoring the insulation gas (e.g. sulfurhexafluoride SF 6) and thus ensure the safe operation of countless power plants and high voltage switching installations.Get price

8775 - Trafag AG

Density Sensor for insulating gas and other gases The Trafag gas density sensor type 8774 was specifically designed for monitoring insulation gases. The gas density is measured with an oscillating quartz with excellent long term stability. The constant resonant frequency of a quartz oscillator under vacuum is compared with the resonant frequency of an identical quartz situated in the sample gas.Get price

gaz sf6 Gas density monitors and Sulfr hexafluoride Gas density sensors - TRAFAG

Trafag’s product range of gas density measuring devices splits into three different product groups: The mechanically acting gaz sf6 Gas Density Monitors (87x6, 87x7, 87x8) The electronic sf6 gas Gas Density Sensors (8774; 8775) The sf 6 Hybrid Gas Density Monitors (878x, 879x)Get price

87x6 - trafag.com

High voltage switchgear. CE EU declaration of conformity insulating gas Gas Density Monitor 87x6 87x8. en. pdf 51.2KB. Trafag is where you areGet price

sf6 gas Gas Density Monitoring | TRAFAG

Trafag gas monitoring devices measure the gas density directly, i.e. Sulfr hexafluoride Gas Density Monitor s, with the unique gas density reference principle or the patented quartz tuning fork technology, i.e. insulating gas Gas Density Sensor s, or by combining both principles, i.e. sf6 gas Hybrid Gas Density Monitors. They thus offer the most reliable solution on the market by directly measuring the gaz sf6 gas density.Get price

SWITCHGEAR AND sf6 gas GAS - Gob

Total sf 6 banked in switchgear in service 27.500 t. Emission world-wide related to switchgear about 2.700 t. The atmospheric measurement carried out in 1995 showed a worldwide total emission of 6200 t of sf 6 that year [8]. Based on the above data, and the available information about theGet price

TechTopics No. 111 | TechTopics | Siemens USA

TechTopics No. 111. sf6 gas gas and U.S. greenhouse gas emissions. The use of sulfur-hexafluoride (SF 6) gas globally has been the subject of a large amount of discussion for many years, both in the U.S., and worldwide. 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.Get price

878x - trafag.com

Gas Density Monitor for insulating gas and other gases with output signal for continuous monitoring Output signal Mechanical monitoring: floating change-over contact Electronic monitoring/Sensor: analogue: 6.5...20 mA current loop Output signal 6.5...20 mA current loop 0...0.85MPa absolute insulating gas @ 20°C 0...56.1 kg Sulfr hexafluoride /m3Get price

Limiting Sulfr hexafluoride Gas Emissions by Optimization of Design and

6 Gas Emissions by Optimization of Design and Handling over the Life Cycle of HV Switchgear. J.L. Bessede, A. Buescher, R. Marshall, G.F. Montillet , A. Stelter AREVA TD Abstract SF 6 gas is widely used in the high-voltage electrical industry because it is an excellent dielectric and has a very good electrical arc switching characteristic.Get price

insulating gas Free HV GIS and Breakers

hermetically sealed gas insulated switchgear (GIS) CARB • Report annually by June 1 • Resubmit report within 45 days (plus an additional 30 days if requested) of substantive errors being discovered [adopted 40 CFR Part 98.3(h) by reference] • Report calculated annual Sulfr hexafluoride emissions (lbs) and calculated insulating gas emission rate for onlyGet price

Reducing Sulfur Hexafluoride (Sulfr hexafluoride) Emissions from Gas

Jan 01, 2015 · Reducing Sulfur Hexafluoride (Sulfr hexafluoride) Emissions from Gas-Insulated Switchgear (310 CMR 7.72) gaz sf6 is a strong greenhouse gas (GHG), with a global warming effect nearly 24,000 times greater than carbon dioxide. sf6 gas also lasts in the atmosphere for more than 3,000 years after it is released. As an excellent insulator, Sulfr hexafluoride is often found in gas-insulated switchgear (GIS), equipment used in high-voltage electrical systems to control the flow of electrical current.Get price

sf6 gas gas in medium-voltage switchgear | TD Guardian Articles

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 sf 6 gas in the load interrupting switch and switch-disconnector in SIMOSEC metal-enclosed load interrupter switchgear rated up to 27.6 kV.Get price

gaz sf6 Management and Handling by Switchgear Manufacturers and

world switchgear related emission in 1995 was some 2,700 tons, representing approx. 43% of the total SF 6 emitted in 1995. Main data for the emission figures originate from Japan /1/, Europe /2/, and USA /4/. Figures for the Middle East, the Far East and the Southern Hemisphere are estimated, based on amountsGet price

Potent GHG Sulfr hexafluoride rapidly accumulating in atmosphere, driven by

Jul 06, 2020 · In an open-access study in the EGU journal Atmospheric Chemistry and Physics, an international team of researchers reports that the greenhouse gas sulfur hexafluoride (Sulfr hexafluoride) is rapidly accumulating in the atmosphere, driven by the demand for sf6 gas-insulated switchgear in developing countries.Get price

1st International Conference on sf 6 and the Environment

Strategy to Reduce and Replace Emissions of sf 6 in Magnesium, Darryl Albright, Director of Market Development, the Americas and Pacific Rim, Hydro Light Metals Update on sf 6 Use and Emissions from Japan’s Magnesium Casting Industry, Kiyoshi Hara, Secretary General, Japan Industrial Conference for Ozone Layer ProtectionGet price

sf 6 GAS DENSITY MONITOR - TRAFAG

Trafag Gas Density Monitor 87X7 Unique SF 6 monitoring with reference gas comparison The mechanical, self-acting device is based on the superior reference gas principle which does not need mechani-cal temperature compensation. It therefore not only covers all standard applications but also maintains highest accuracy over a very wide temperature range.Get price

Essentials of gaz sf6 monitoring | TD Guardian Articles

Jan 01, 2012 · 01/01/2012. Because Sulfr hexafluoride 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

Hybrid Sulfr hexafluoride Gas Density Monitors | TRAFAG

Unique sf 6 monitoring: Combined mechanical AND electronic monitoring The Hybrid Gas Density Monitor combines the advantages of both the mechanical gas density monitorand the electronic gas density sensor in a compact all-in-one apparatus: With its analogue or digital output it is the ideal gas density monitor for smart online sf 6 gas management systems.Get price

TD EUROPE Frequently asked Questions (FAQ) and Answers on SF

rate is less than 0.1 % per year, or the switchgear containment (individual gas filled compartment) includes less than 6 kg sf6 gas, or the switchgear is equipped with a permanent leakage detection system (manometer, pressure switch or gas density monitor), there is no need for periodic leakage checks. In practical medium- andGet price

HB3 | GCB | Siemens Global

Siemens HB3 is world’s first and unique generator switchgear taking advantage from vacuum switching technology for application up to 12,700 A and short circuit ratings up to 110 kA. With its single-phase encapsulated design, the HB3 fulfills all requirements for its integration between the generator and the generator step-up transformer (GSUTGet price

AC traction power supply | Rail Electrification | Siemens

The Sitras ASG25® air-insulated switchgear is intended for use in 1- and 2-pole AC traction power supply systems. It is a type-tested, metal-enclosed switchgear for indoor installation. The general concept of the Sitras ASG25 is based on a proven technology offering high reliability and availability.Get price

EU-F-Gas-regulation and its impact on manufacturers and users

please refer to IEC 62271-303: High-voltage switchgear and control gear – Part 303 Use and handling of sulphur hexafluoride (SF. 6)” Instruction Manual . European F-Gas-regulation 842/2006, article 7 „Labelling“ together with regulation 1494/2007. Source: TD Europe, Guide for Manufacturers of HV Switchgear containing SF. 6 …Get price

Siemens to provide UK’s first sf6 gas free 145kV vacuum circuit

It is the first time that clean air has been used instead of Sulfr hexafluoride to insulate 145kV circuit breakers in the UK. It uses a gas mix similar to the air we breathe, made up of nitrogen (80%) and oxygen (20%), as a carbon free alternative to Sulfr hexafluoride which has traditionally been the method of insulation in high voltage switchgear since the 1960s.Get price

Applications for pressure transmitters, pressure - TRAFAG

Trafagproducts for shipbuilding, railway, engine, hydraulics, Ex-zones, water treatment, insulating gas gas density monitoring Applications for pressure transmitters, pressure switches, thermostats and Sulfr hexafluoride gas density devices | TRAFAGGet price

Gas Density Monitors | TRAFAG

The insulating gas Gas Density Monitor functions on the principle of reference gas comparison and therefore does not require temperature compensation. Trafag, Inc. 8848 RedGet price

TechTopics No. 53 | TechTopics | Siemens USA

The emissions of 13.1 T g CO 2 E g was about 0.2 percent of the total 6,956.8 T g CO 2 E g for all greenhouse gas emissions in the U.S. for 2008 (refer to pages 28-30, table ES-2).Get price

How to Minimize Emissions of Environment-Damaging gaz sf6 - WIKA blog

Oct 25, 2016 · Sulfur hexafluoride (gaz sf6) has been used for decades as an insulator in power plants and electrical transmission and distribution. This gas has excellent dielectric properties, almost three times better than air and nitrogen, and it works well as arc quencher in circuit breakers and electrical switchgear.Get price