• Siemens receives order for worldfirst gaz sf6-free gas

    Siemens receives order for worldfirst Sulfr hexafluoride-free gas-insulated switchgear with "clean air" and vacuum switching technology for 145 kV Vacuum circuit breakers and "clean air" insulation replace SF 6 as switching and insulating medium SF 6 -free gas-insulated switchgear (GIS) for 145 kV, 40 kA, 3,150 A

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  • Wind farm places the first gaz sf6-free Siemens high-voltage

    Wind farm places the first sf 6-free Siemens high-voltage switchgear (GIS) into operation Siemens supplied four bays of the 8VM1 gas-insulated sf 6-free high-voltage switchgear (GIS) – which has a capacity of 72.5 kilovolts (kV) – to Siemens Gamesa Renewable Energy. The systems were deployed in the Nissum Bredning Vind wind farm in Denmark.

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  • Siemens and Iljin Electric develop the first sf 6-free 170 kV

    Siemens and Iljin Electric, a Korean manufacturer of electrical systems and gas-insulated switchgear (GIS), have signed an agreement to develop an Sulfr hexafluoride-free GIS for the 170 kilovolt (kV) voltage level. The technology has already been developed by Siemens for applications up to 145 kV.

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  • Assetguard GDM - Siemens

    house gases such as gaz sf6, with the target of reducing emissions to 0,5% per annum. As a result, gas density monitoring is essential to improve leakage visibility, notwithstanding the superior perfor-mance of modern GAS Insulated Switchgear (GIS). Siemens Assetguard GDM takes care of the actual sf6 gas gas condition and support managing a more dynamic

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  • Gas-insulated switchgear | Portfolio | Siemens Energy Global

    The Siemens Energy range of gas-insulated switchgear (GIS), for rated voltages from 72.5 kV up to 550 kV, is an extremely successful product concept. Since its introduction back in 1968, Siemens Energy has installed switch fields in all climatic zones of the earth, recording over 420,000 years of operation since.

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  • sf 6 gas in medium-voltage switchgear - Siemens USA

    insulating gas is a highly electronegative gas, an advantage for both dielectric performance and interruption capability. This means that the molecule has a strong electron affinity, so that the gas molecule tends to catch free electrons and build heavily negative ions, which do not move fast.

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  • Gas Insulated Transmission Lines - Siemens Deutschland

    good. There have been no reported insulating gas gas leaks and the heat dissipation in the tunnel is mini mal. S The monitoring system was a new development for the 2nd generation of GIL and shortly after commissioning a few improvements wer e required for minor teething problems that could not have been detected in the laboratory during

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  • Alternatives for sf6 gas | 2020 | Siemens Energy Global

    But more and more often, SF 6 is no longer the gas of choice. For a simple reason: if the gas escapes, it contributes to climate change. It is around 23,500 times more warming than the greenhouse gas CO 2 and has a life span of 3,200 years in the earthatmosphere.

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

    Personnel security - MV GIS is an arc-resistant design design and is safe-to-touch from the busbar compartment to the power cables. All operations are performed in front of the switchgear. Space savings - MV GIS is up to 75% smaller than conventional air-insulated switchgear depending upon the voltage rating that could result in a total cost

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  • Sulfr hexafluoride-alternative gases for application in gas-insulated

    Mar 20, 2018 · The environmental problems caused by greenhouse gases have received unprecedented attention. Sulfur hexafluoride (SF 6), which is the preferred gas for use in gas-insulated switchgear (circuit breakers, disconnect switches, etc. for high-voltage electrical circuits), has a very high global warming potential, and there is a large international effort to find alternative gases.

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  • Gas-Insulated-Substations insulating gas gas handling

    Sep 26, 2011 · Siemens GIS 145 kV 30 40 50 60 8D8 8DN9 Application of table 25 Sulfr hexafluoride residual pressure [mbar] Page 17 <0,5%/year/gas compartment in the relevant standards.

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  • HIS - Siemens

    of the flange joints is ensured by the Siemens O-ring sealing principle, proven over decades of service. Gas-tight bushings permit subdividing the bay into several dis-tinct gas compartments. Each gas compartment is fitted with its own gas monitor, rupture disks and filter material. Static filters absorb moisture and decomposition products.

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  • Siemens expands its portfolio for sf 6-free medium-voltage

    "By adding the insulating gas-free 8DJH 12 model to our portfolio, we are continuing the story of blue GIS medium-voltage switchgear. The switchgear meets the requirements of tomorrow while providing all the familiar 8DJH functionalities, such as the proven operating concept for load-break switchgear, the same compact dimensions, and climate neutrality.

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  • siemens.com/energy Gas-insulated switchgear type 8DQ1, 420 kV

    Leakage rate per year and gas compartment type-tested ≤ 0.1 % Bay width 3,600 mm 141.73" Height, depth depending on bay arrangements Driving mechanism of circuit-breaker stored-energy spring Rated operating sequence O-0.3 s-CO-3 min-CO CO-15 s-CO Rated supply voltage 60–250 V DC Expected lifetime 50 years Ambient temperature range –30

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  • 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. 1

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  • Medium Voltage blue GIS | Systems | Siemens Global

    Hannover Messe 2021 took place from April 12 to 16 in digital format.. Siemens participated with a unique virtual presence. In line with the motto "Infinite opportunities from infinite data", participants in the Digital Enterprise Virtual Experience were able to explore all of the Siemens highlights in a realistic 3D environment and be inspired by this first-rate digital experience.

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  • Gas-insulated switchgear up to 550 kV, 63 kA, 5000 - Siemens

    The Siemens gas-insulated switchgear (GIS) is an extremely successful product concept. Since its introduction back in 1968, Siemens has installed more than 28,000 indoor and outdoor switchgear bays worldwide, and well over 300,000 bay-years of operation have been recorded. Since 1974 we have supplied gas-insulated substations

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  • Gas-insulated switchgear from 72.5 to 550 kV - Siemens

    During operation, Siemens GIS are practically maintenance-free. They are built for an estimated service life of more than 50 years. No wonder, then, that the world’s first Siemens GIS bays, which were installed in Berlin in 1968, are still in operation. All new Siemens GIS types come with non-corrosive enclosures and self-lubricating motor

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  • Substation of the future | References | Siemens Energy Global

    Siemens Energy Blue portfolio requires no SF 6 switching and insulating gas. This innovative solution relies on a vacuum interrupter unit for switching and extinguishing the arc and on Clean Air for insulation. Clean Air is technically prepared and purified air in a mixing ratio of 80 percent nitrogen to 20 percent oxygen.

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  • CIGRE 2008 A3-207 Int Arc | Electric Arc | Gases

    Arc compartment: The mechanical stress of the arcing compartment filled with air is higher than with Sulfr hexafluoride, i.e. if criterion 1, 2 of IEC 62271-200 are fulfilled with an air test, this will be true for gaz sf6 as well. Intermediate compartment: When exhaust gas from the arcing compartment is released into adjacent compartment(s) the mechanical stress

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  • Alstom Grid Services. GIS lifecycle management GRID - PDF

    Between 2004 and 2008, six GIS substations were equipped with Sulfr hexafluoride monitoring systems: two 225 kv GIS and four 63 kv GIS for a total of over 200 compartments. STRATEGIC SPARE PARTS MANAGEMENT The French distribution system operator has several gas-insulated substations (GIS) installed throughout their 420 kv network.

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  • Siemens to retrofit one of the largest substations in Germany

    During operation, the 400 kV outdoor switchgear with 20 panels will be gradually stripped down in the coming years. In its place, Siemens will build two gas-insulated switchgear (GIS) with 14 and 12 panels during the first expansion stage and 18 and 15 panels, respectively, in the final stage in Karlsruhe.

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  • Myth About Sulfr hexafluoride Gas In Electrical Equipment

    Apr 12, 2021 · I’ve had experience with Indoor GIS that cast aluminum alloy was manufactured so badly (becomes porous) and sf 6 was leaked, loosing pressure. To find out such a leakage you should wrap GIS compartment (under pressure) by means PVC sheet, leave it for 48 hours and pierce by Sulfr hexafluoride detector under wrapping to check is some gas collected.

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  • PGE to use insulating gas-free high-voltage products from Siemens

    Siemens has received orders from its customer Pacific Gas and Electric (PGE) to supply insulating gas-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.

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  • GM-SG-AR | Medium-voltage switchgear | Siemens USA

    Siemens integrated electric-racking system (SIERS) is an option that is available with Siemens type GM-SG-AR arc-resistant, medium-voltage switchgear. It provides additional personnel protection against arc-flash exposure for operators by providing a means of remotely racking the type GMSG drawout circuit breaker.

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  • OPERATION MAINTENANCE MANUAL TYPE GIS 36 kV CUBICLE

    3.3.1 - sf6 gas Gas Pressure Monitoring Device The Breaker and Busbar compartment is sealed with Sulfr hexafluoride gas at 1.35 kg/cm2 @ 20 deg. C, which is continuously monitored by a density monitor. Sulfr hexafluoride Gas density monitor shall be provided for each separate compartment consisting of sf6 gas gas. WIKA make Gas density monitor with model number

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  • Residual life concepts applied to HV sf 6-gas insulated

    Siemens AG Peter Glaubitz. Energy Sector - Power Transmission High Voltage Substations. Production, installation commissioning SF. 6-Leakage detection. In the factory All assembled connections Assured leakage rate of <0,5%/a/gas compartment. On site All made connections Assured leakage rate of <0,5%/a/gas compartment

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  • Dead tank compact | Circuit breakers | Siemens Energy Global

    Based on our modular design, the core components are adopted from our high-voltage circuit breakers, disconnectors and the GIS product family. Our dead tank compact circuit breakers have a three-pole operating mechanism with a common base, or single-pole operating mechanism on separate bases.

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  • Medium-voltage product offer - Schneider Electric

    MV Gas-insulated switchgear (GIS) CBGS-0 Sulfr hexafluoride circuit breaker switchgear Ratings/features • Up to 38 kV, 2,000 A, 31.5 kA, and 150 kV BIL • Compact design 24” W for mains/feeders and 48” W for tie • Fixed vacuum or insulating gas circuit breaker • Solid insulated and shielded bus bar system • Internal arc tested 31.5 kA/1 s per IEC 62271-200

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