Power transmission products, systems, and solutions

Our power transmission portfolio - strengthen your transmission grid

Power transmission products, systems and solutions play a vital role in an energy landscape that is characterized by increasing energy demand, decentralization, decarbonization, and digitalization. With our innovative portfolio we provide: Highest performance (efficiency, reliability, safety); Increasing sustainability and a minimal carbon footprint; Digital connectivity for optimized asset management and operation; and customer proximity via our global factory network.

Blue high-voltage products 

The Blue portfolio combines vacuum switching technology with clean air insulation technology.

Bushings

Condenser-graded bushings for all applications for rated voltages from 24 kV to 1,200 kV.

Circuit breakers

As a world market leader, Siemens Energy provides circuit breakers which meet the environmental, technological and economic conditions in the various countries worldwide.

Coils

With more than 50 years of successful field experience, Trench is the recognized world leader in the design and manufacture of air-core, dry-type, power reactors for all utility and industrial applications.

Disconnectors and earthing switches

High-voltage disconnectors and earthing switches for applications from 72.5 kV to 800 kV.

Flexible AC transmission systems (FACTS)

Discover how Flexible AC Transmission Systems (FACTS) help optimizing the quality and profitability of AC grids and industrial plants.

Gas-insulated switchgear

Gas-insulated switchgear for rated voltages from 72.5 kV to 550 kV.

HVDC (High Voltage Direct Current)

Siemens High Voltage Direct Current systems (HVDC) provide the most efficient way of energy transmission over long distances and to support the improvement of the grid stability. An HVDC system with low losses consist of e.g. highvoltage-cables, circuit-breakers, converters with thyristors or IGBTS and capacitors.

High voltage solutions refurbishment

Better performance, adaptation to new market conditions, and protection of existing investments thanks to targeted refurbishment measures.

High-voltage systems for substations

Discover the advantages of AIS, GIS, and mixed technology substations.

Instrument Transformers

Electrical instrument transformers transform high currents and voltages to standardized low and easily measurable values that are isolated from the high voltage.

MVDC PLUS

DC connection technology for medium-voltage power transmission increases power transfer capability while minimizing losses.

Offshore Grid Connections

Grid connection for your offshore platform: join forces with Siemens for success. Based on standard solutions for DC and AC technology.

Sensproducts

Sensproducts is merging all features of Sensgear and Sensformer and their digital twin. Conventional transmission products become digital information hubs.

SOLUTIONS FOR OVERHEAD LINES

Siemens Energy is the only supplier which offers insulators and arresters for overhead lines as complete solutions. 

Surge arresters

High-voltage and medium-voltage surge arresters with system voltages up to 1,200 kV.

Transformers

Siemens offers transformers for all outputs and voltages, every type of cooling and every mode of operation.

Services

Siemens Energy is the holistic service provider for the Transmission elements through the entire energy value chain.

Transmission Digital - Key Visual
Hannover Messe 2021, 12 Apr - 16 Apr

Take the lead in the transition to intelligent, safe and efficient power grids

Join us virtually at the Hanover Fair from April 12-16. Learn how to seize the digital opportunity and leverage the power of digitalization from our experts at Siemens Energy. Already planning on joining? Make sure to stop by and say hello at our digital booth.

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For your convenience, we have assembled relevant downloads as well as details of support contacts below.

Brochures

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Energy Customer Support 

  • +49 180 524 24-71

You can contact us 24/7. We are looking forward for your call or online request.

Testing laboratories at Schaltwerk Berlin

We test components at our accredited testing laboratories.

Testing laboratories at Schaltwerk Berlin

Testing laboratories at Schaltwerk Berlin

Numerical simulation and analytical calculation methods for efficient product development.

Technical simulations
News & Media

Stay up to date

Our success stories, upcoming industry events and trade shows - get the latest news here!
Success story, Nov 2020

Mobile SF6 gauge now available on your smartphone

Operating high-voltage equipment in particular with SF6 insulation requires an accurate and continous monitoring of gas density. Near real time access to gas density monitors and push notifications are now possible via mobile devices, anytime and anywhere.
Success story, Nov 2020

New clamping concept for shunt reactors

Siemens Energy employees developed a new-to-the-world clamping concept to simplify shunt reactor design – offering tremendous benefits for production and end customers. The new concept has now been rolled out to the global shunt reactor factory network.
Sensproducts Showroom
Virtual event, July 2020

Product launch Born connected 3.0

Watch our Born connected 3.0 product launch on demand to learn more about Sensproducts and Sensgear advanced.
Wind farm
Press release, June 2020

Siemens to supply high-voltage equipment for major offshore wind project in the U.S.

Siemens Energy has been awarded to equip one of the first and the largest offshore wind farm to be built in the U.S.. The plant for the Mayflower Wind project will be located approximately 25 miles south of Nantucket, Massachusetts and will supply up to half a million U.S. households with renewable energy. Customer is the Danish engineering and contracting company Semco Maritime.
8VN1 blue GIS
Success story, April 2020

The first order of an 8VN1 switchgear in Denmark

The total order intake of the 8VN1 switchgear reached more than 100 bays. Cerius is the first customer in Denmark to order this Clean Air insulated switchgear with vacuum switching technology for a substat
8VM1 blue GIS 72,5 kV
Success story, April 2020

8VM1 blue GIS® successfully seismic tested

The successful seismic test of the 8VM1 blue GIS® once more proves Siemens’ sustainable, reliable and resilient design. The approach of Clean Air insulation combined with vacuum interruption technology underlines the environmental aspect of renewable energy.
3AV1 circuit-breaker
Success story, March 2020

Worlds first Sensgear® circuit-breaker

Siemens energized the world’s first blue Sensgear® circuit-breaker with Clean Air insulation and vacuum switching technology.
Generator step-up transformer from Factory Weiz
Success Story, January 2020

Pretact®: resilience for U.S. power plants

Grid resilience for a power generating utility in the U.S.: Siemens delivers a set of mobile resilience generator-step-up transformers to Southern Power.
Burladingen Substation
Success Story, December 2019

Siemens delivers substation of the future

Substation of the future: Siemens has received a second contract from Netze BW for a new climate-neutral and digitalized substation.
Press release, November 2019

Siemens to retrofit one of the largest substations in Germany

German transmission grid operator TransnetBW has commissioned Siemens to build new switchgear in the 380 kilovolt (kV) Daxlanden substation in Karlsruhe, Baden-Württemberg. Two new gas-insulated indoor switchgear, initially with 26 panels, will boost the substation's transmission capacity and cover the increased transport demand in the German high-voltage grid as a result of the transition to a new energy mix.
Success Story, September 2019

Sensformer recognized in NASSCOM awards

The Sensformer project has been awarded second place in the IOT category of NASSCOM’s disruptive technologies award. 
Success Story, August 2019

Successful short-circuit test of one of the world’s largest autotransformer

One of the world’s largest short-circuit tested autotransformer on its journey from China to the Netherlands and back.
Success Story, July 2019

Powering Vineyard Wind in Massachusetts, U.S.

First offshore project in the U.S.: Siemens Transmission Products is to equip the Vineyard Wind project with 18 gas-insulated switchgear bays, 2 shunt reactors, 2 generation-step-up-transformers and 2 earthing / auxiliary transformers along with digital control and protection equipment (SCADA).
Success story, May 2019

SF6-free 420 kV voltage transformer

Siemens has been awarded its first order to deliver 420 kV blue voltage transformers in Germany.
Products launch, April 2019

Born connected 2.0 – Sensgear™ & Sensformer® advanced

The connectivity of assets is the first step into digitalization. With Sensformer® we entered this field in 2018. This year, we expand the successful concept to the complete transmission products portfolio.
Success story, Mar 2019

Ester-Transformer: High performance with increased sustainability

What a milestone: the world’s first 345-kV generator-step-up transformer with natural ester insulation has passed the short-circuit test at KEMA instute.
Success story, Feb 2019

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

Earthquake test successfully passed: The blue 8VN1 gas-insulated switchgear is not only sustainable and high-performing, it also adds to the resilience of grids. It has now passed a seismic test acc. IEEE.
Success story, Jan 2019

High performance even at low temperatures

Siemens will deliver yet another power transformer for the 400 kV level to TransnetBW. Read more about this new order in our latest success story.
Sensformer
Success story, Jan 2019

Sensformer® and cyber security

The Sensformer® IoT device allows key transformer data such as oil temperature, oil level and inductor current to be securely sent to a cloud service with the help of automatic registration and cryptographically secured communication between the device and the cloud service.
Mobile substation
Success story, Dec 2018

China: Eco-friendly mobile substation solution for emergencies

Siemens Transmission Products now offers its Chinese customers a mobile substation with an ester-filled transformer. The best part: there is no asset investment or maintenance for customers.
Success story, Nov 2018

World’s first GIC-tested shunt reactor in operation

Coping with impact by Northern Lights. Beautiful, but also highly dangerous: solar storms not only generate fascinating auroras, they can also cause large-scale outages triggered by geomagnetically induced currents (GIC). This is where the world’s first GIC-tested variable shunt reactor (VSR) comes in, which is now in operation for the Norwegian TSO Statnett.
Testing with digital twin
Success story, Nov 2018

Testing with the digital twin

A complex step of the production process is being digitalized in the Siemens Transformers factory in Nuremberg – this cuts costs, is more precise and shortens the production lead time.. In the past, a new active part had to be placed into its tank in a complex and time-consuming process in order to test if it fitted. The Siemens Transformers factory in Nuremberg has now made this process more efficient with the help of a digital twin.

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