Gas-insulated switchgear

With the energy sector having a greater carbon impact than every other industry combined, the urgent need for decarbonization to combat climate change cannot be overstated. Renewable energy sources are only part of the solution; at Siemens Energy we understand how essential it is to achieve Zero Global Warming Potential (GWP) in the transmission of power as well as in its generation. Most switchgear still uses SF6 for insulation – a gas 24,300 times more climate-hostile than CO2 and one which stays in the atmosphere for up to 3,200 years. Even the new F-gas alternatives are still harmful to the environment when released. That’s not sustainable, as recognized by the new EU-F-gas-regulation. And it’s why we’ve developed our Zero-harm Blue portfolio, including gas-insulated switchgear and gas-insulated busduct.

Enabling higher voltage levels for wind turbines. It is essential to live energy transition and increase resource efficiency. Wind power generation is making a major contribution for the growing power demand and a new generation of wind power plants require innovative technologies. Our compact, environmentally friendly, high-voltage gas-insulated 8VM1 Blue GIS for on- & offshore installations up to 72.5 kV is an optimal contribution to enlarged wind turbine power and reduced cable losses.

The 8VN1 Blue GIS maintains the highest standards of performance and reliability. It delivers high voltages with the highest switching performance without degradation, and is capable of operating in extreme environmental conditions across the globe. 8VN1 is compatible with all previously installed conventional GIS of the same voltage level and saves more than 80% CO2 equivalent over the entire product life cycle. The usage of the new Low Power Instrument Transformer (LPIT) reduces the bay length by 30% and weight by 25% which saves even more CO2.

Also in higher voltages from 245 – 420 kV an SF6 reduction is possible. A combined solution of a conventional GIS together with our Blue GIB saves between 30 – 65% SF6. At the same time, it maintains the highest standards of technical performance and reliability, together with low lifecycle costs. No specially trained personnel is needed for the transport, handling, or operation of the clean air GIB for 420 kV.

LPITs are innovative voltage and current transformers providing a safe, reliable and standardized solution for measurement and protection applications in GIS.

Combined: electronic voltage and current transformer
Redundant: two current sensors and one voltage sensor in each bay
Multi-purpose: one device for protection and measurement
Standardized: same device used for all rated currents
Flexible installation everywhere in the GIS

Blue GIS clean air animation

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We keep the world energized

While high-voltage equipment often outlasts its warranty periods, our team of over 2,000 Siemens Energy employees worldwide is ready to support your equipment throughout its entire lifespan.

We ensure optimal performance, high availability, and efficiency for your GIS, providing a secure and stable power supply for many years.

8VM1 Blue GIS successfully seismic tested

Technically advanced, environmentally friendly, earthquake-tested, Blue: gas-insulated switchgear

The first order of an 8VN1 switchgear in Denmark

Mr. Engel (Netze BW) walking besides a solar park

Siemens Energy delivers substation of the future

Environmentally friendly, robust and highly efficient products for OEMs of wind turbine generators

Siemens Energy has delivered more than 4000 units of sustainable transformers and gasinsulated switchgear for the installation in the nacelles and towers of offshore wind parks. This is an important contribution to the expansion of renewable energy sources, which is in line with the outcome of the latest world energy forum report. Besides, it supports the implementation of the United Nations Sustainable Development Goals.

For a greener Finland

GIS 8DN9-2 Westbay 1 and 2, Umm Salal, Qatar

Bringing Zero closer: Gas-insulated switchgear and busduct

Why we need to go for Zero. And why you need Blue.

When traditional technology is still needed

Zero SF6, Zero greenhouse gases - only clean air

8VM1 Blue GIS

8VN1 Blue GIS

8VQ3 Blue GIB

Low Power Instrument Transformer (LPIT) for compact and lightweight GIS design

Zero environmental impact

Zero impact on health and safety

Zero regulations

Zero compromise on performance and reliability

Blue gas-insulated switchgear: future-ready and future-proof

Services for gas-insulated switchgears

Further readings

8VM1 Blue GIS successfully seismic tested

Technically advanced, environmentally friendly, earthquake-tested, Blue: gas-insulated switchgear

The first order of an 8VN1 switchgear in Denmark

Siemens Energy delivers substation of the future

Environmentally friendly, robust and highly efficient products for OEMs of wind turbine generators

For a greener Finland

8D GIS products up to 550 kV

Our services for you

GIS from 72.5 - 550 kV (EN)

8VM1 Blue GIS up to 72.5 kV (EN)

8VM1 Blue GIS up to 72.5 kV (CN)

8VN1 Blue GIS up to 145 kV (EN)

8VN1 Blue GIS up to 145 kV (CN)

8VQ3 Blue GIB for 420 kV (EN)

LPIT (EN)

Sensgear (EN)

Technical data 8DN8

Technical data 8DN9

Technical data 8DQ1

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