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Siemens and Iljin Electric develop the first SF6-free 170 kV gas-insulated switchgear with vacuum switching technology

High-voltage circuit-breakers and gas-insulated switchgear with SF6 as the insulating, switching, and quenching gas remain in our product range. They form the basis for the new development, whose vacuum switching, and so-called clean air technologies allow them to work without any SF6 at all. A vacuum interrupter unit handles the switching and arc quenching functions, while industrially treated and purified air provides the insulation for the current-carrying conductors inside the housing. "We are very pleased to have the opportunity to work with Iljin on the development and production of an environmentally friendly 170 kV GIS in Korea," says Cedrik Neike, Member of the Managing Board of Siemens AG. "By developing these innovative products, we play our part in Koreas future environmentally friendly energy landscape." After the recent milestone of commissioning the first Vacuum-Clean-Air Circuit-breakers and Clean-Air Instrument Transformers in the German 110 kV high-voltage grid was reached in June 2018, the next step is the further development for the 170 kV level.
Jung-Suk Huh, CEO of Iljin, says, "By developing this modern GIS, based on the extensive technological experience and knowledge of the two companies, we will be able to meet Korea's demand for environmentally friendly products."

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Event: Siemens at CIGRE 2018: Unlock the potential of digitalization

Event: Siemens at CIGRE 2018: Unlock the potential of digitalization

Siemens AG(Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for 170 years. The company is active around the globe, focusing on the areas of electrification, automation and digitalization. One of the world's largest producers of energy-efficient, resource-saving technologies, Siemens is a leading supplier of efficient power generation and power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. With its publicly listed subsidiary Siemens Healthineers AG, the company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2017, which ended on September 30, 2017, Siemens generated revenue of €83.0 billion and net income of €6.2 billion. At the end of September 2017, the company had around 377,000 employees worldwide. Further information is available on the Internet at
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Felix Michelfeit

Siemens AG

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