Transformers

Sensformer®: Transformers meet connectivity

Transformers play a crucial role to achieve a successful energy transition. The energy landscape is changing rapidly, and grid operators need to respond felxibly to power fluctuations due to renewable power generation. We started early to develop technologies that are actively shaping the path to a climate-friendly future. Discover our eco-friendly transformers, our grid stabilizing equipment, as well as our innovative ester solutions, our Pretact resiliency concept and our Sensformer technology.

Success Story, July 2021

History made in Dresden as the 3,000th transformer leaves the transformer plant

Since its foundation in 1904, the Dresden transformer factory has gained more than one hundred years of experience in the design and manufacture of medium power and industrial transformers. Today, the technical expertise of Siemens Energy for this transformer type with power ratings up to 330 MVA and voltage ranges up to 420 kV is pooled in Dresden. The factory’s 3,000th transformer was delivered to SachsenEnergie, a long-time customer, at the end of June, and will be put into operation by July 2021.

Please click here to read our latest success story
Fields of operation

Find out why Siemens Energy makes a difference

In more than 100 countries and for more than 100 years, transformers made by Siemens Energy have been synonymous with top quality. The extreme high reliability (mean time between failures) is only one example of this quality. To ensure things stay this way, we are constantly working with high level experts on research and new developments. Furthermore, we are always close to our customers – thanks to our global manufacturing and service network. See for yourself, why our transformers make a difference!

Sensformer® and Sensformer® Advanced - digitally enhanced transformers

Transformers are a vital and decisive part of power grids – no matter if conventional or digital. Sensformer® enables you to digitize this important keystone of your grid. Now your transformers are connective!

A Sensformer® contains the necessary sensors for entering the most important operating parameters – such as oil-level, temperature, LV winding current and GPS-positioning. To step into the world of digitalized transformers, you simply add a GSM-card. Data submission can be done via GSM as well as Ethernet-connection without the need of a secondary IT infrastructure.  

A Sensformer® Advanced is equipped with a digital twin, which simulates the behavior of the physical asset in real time and thus creates a completely new type of experience and value-add applications: An active overload manager allows Sensformer® Advanced operators to manage temporary overloads without compromising on lifetime. With a full temperature view, the current heat status can always be checked, a life consumption view gives indications on the residual lifetime of the asset. Furthermore, based on the digital twin, for highly developed applications, additional advanced sensors can be used on the asset, e.g. bushing, partial discharge or DGA sensors.

Esters - alternative insulation fluids

Alternative fluids are an effective lever to increase sustainability and safety of transmission and distribution products. Our extensive and in-depth research in our own labs allows us to fill transformers for all kinds of applications and even HVDC transformers with natural and synthetic ester insulation instead of mineral oil.

Ester insulation offers considerable benefits to grid operators. They are not only readily biodegradable but have additional advantages due to their specific technical characteristics.

Pretact® EcoSafeT – our comprehensive resilience concept

Our Pretact® concept was introduced to maximize the resilience of modern power grids. It comprises a comprehensive set of modular features to prevent and protect transformers and high-voltage products better from operational issues as well as against natural disasters or forced outages.

Ecodesign Directive, efficiency, amortization:

Our multifunction calculator checks your ideal transformer

You decided to invest in a new transformer? Using our multifunction calculator, you can check multiple basic parameters simultaneously. Does your ideal transformer meet the requirements of the European Commission’s Ecodesign Directive that has been in place since 2015*? How efficiently does it operate and how long will it take to amortize the higher investment if you decide for a more efficient variant? Take advantage of this valuable opportunity to decide and plan, step by step. Please note: Based on information on the Peak Efficiency Index, this calculator is usable only for power transformers.
To share the efficiency calculator use this direct link

www.siemens-energy.com/efficiencycalculator

Service

Always get the most out of your products

Make use of our services

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

Stay up to date with our transformers

Our transformers, upcoming industry events and tradeshows – get the latest news here!