Electromechanical Design of Angra 3

Period: November 2022 — March 2024 Professional THEMAG GitHub →

My work on the Angra 3 Nuclear Power Plant was carried out at THEMAG, a legendary Brazilian engineering consultancy, as part of a consortium with IDOM. The project's objective was to deliver a fully coordinated 3D representation of the plant to support construction of one of the most complex and regulated infrastructure projects in Brazil.

I led a multidisciplinary team responsible for the modeling and integration of civil structures, including reinforced concrete, steel structures, and anchor plates, as well as electrical systems within the electromechanical scope. This role made me responsible for overall design coordination, managing interfaces and resolving conflicts across civil, mechanical, electrical, and electromechanical disciplines.

Angra 2 power plant
Angra 2 power plant, the first reference facility developed under the Brazil–Germany nuclear cooperation program. Angra dos Reis, 2023.

In parallel, I contributed to planning and project management activities, supporting the definition of coordination methodologies, validation workflows, and quality-control procedures aligned with nuclear engineering requirements and the client's standards.

To manage complexity at this scale, I developed custom software tools focused on information integration and traceability.

One of them, ServerEm3, was a relational database created to explicitly connect piping systems to their respective supports. Together with two junior engineers under my supervision, I structured data extracted from more than 60,000 original files (PDFs, DWGs, spreadsheets), enabling clear traceability across relationships such as:

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Building → System → Isometric drawing → Support drawing → Stress analysis

In addition, I developed pipe-translator, a Python utility designed to support the piping stress analysis team by translating pipe layout files from CAESAR II (.NTXT) format to PIPESTRESS (.FRE) format. The tool reduced manual rework and improved consistency between layout and analysis models.

I also created a direct integration with Eletronuclear's (the client) SharePoint through REST APIs, which streamlined access to reference documentation and reduced friction in version-controlled workflows.

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A lasting insight from this experience is that large-scale projects are, above all, systems of interdependent decisions. Structure, documentation, and information flow are as critical as any calculation—and recognizing this early shaped how I approach every project since.