Stedin is the regional gas and electricity grid operator in the Randstad and the Rotterdam Port Area. They have offices in Rotterdam, Utrecht, and Delft. As grid operator, Stedin is also responsible for the construction, expansion, and maintenance of the transmission network.

For the installation of a new 150/50 kV transformer, a new transformer cubicle was needed in Stedin's transformer yard. Tebulo Engineering was responsible for the complete detailed engineering of all building-related installations for the installed transformer cubicle of the 150/50 kV transformer in Merwedehaven, Dordrecht.

This project was carried out in collaboration with Advin, which handled the construction and project management. Tebulo Engineering was responsible for the engineering of the building-related installations. The new transformer compartment for the 150/50 kV transformer is a standalone building. The low-voltage power supply and secondary installations are located in a separate secondary room. The engineering for the new transformer compartment for the 150/50 kV transformer included the grounding and lightning protection system, the electrical installation, and the evacuation plan. This was determined by applying various calculations. Upon completion of the project, following the FAT and SAT tests, all amended data was incorporated into the documents.