Digital twin of power transformers

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Digital Twin Overview

DNV worked with E.ON in a consortium with other partners such as SGB-SMIT, Maschinenfabrik Reinhausen and Westnetz to create a Digital Twin that monitors asset health and performance of 110 kV power transformers.

Opportunities & Challenges

E.ON’s portfolio of high power transformers all originate from different manufacturers and as distribution grids are all managed by different regional operators, asset condition data from the installed base of transformers was  not centrally available for analysis. In order to improve insights about asset health and performance, E.ON needed a central place where asset data, consisting of asset location, characteristics and real-time data could be stored and accessed for analysis. 

DNV worked with E.ON to gather operational data from the transformers and store it using DNV’s Veracity cloud platform. The data is then visualized on a user-friendly web-based dashboard where the location of the transformers is shown on a map. Users can select a transformer and see its asset characteristics as well as relevant time series data. Assessment functions can be added to evaluate failure modes per asset type. The resulting digital twin platform can be used to determine the remaining life of the equipment fleet and to prioritize capital replacement targets. 

This solution has allowed E.ON to make the shift from managing assets in a reactive, time-based manner, to a more preventive, predictive and risk-based manner. Digital twins like these, give grid operators a better insight into the condition and performance of critical assets and allow for more real-time decision support. This allows them to reduce operating costs and unplanned maintenance of their assets.

Key benefits:

Real-time insights about asset condition and performance
Reduced operational costs and risks
Smarter asset management through improved decision support

Summary of existing material

See the case study on the DT Hub: 

 

And the DNV website:https://www.dnv.com/cases/dnv-creates-digital-twin-for-e-on-198420