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Bakker Sliedrecht completes electrical work on Volvox Terranova

Equipment & Technology // March 14, 2017

While working on a project in Indonesia, trailing suction hopper dredger Volvox Terranova was heavily damaged by an old sea mine. Van Oord decided to repair and modernize their vessel at the same time. Bakker Sliedrecht was part of this great project and got the assignment to modify the suction tube configuration and restore the electrical installation.

To increase production, the configuration of the suction tube was changed. The two submersible motors in the suction tube were replaced by one motor that is more powerful. Also, two transformers were placed to work with the new submersible motor. In addition, a new electrical drive system was installed that powers both the jet pump as the dredging pump.

As the blast wave of the sea mine was very powerful, damage was caused throughout the ship. Therefore, Bakker Sliedrecht inspected the entire electrical system from power generation to power distribution. All damaged components were repaired to restore this system. A whole new main switchboard was assembled in the workshop of Bakker Sliedrecht and installed on board the ship. The cable ducts and cabling were also renewed.

The PLC Scada system was renewed to offer the dredging operators a clear visualization that allows them to monitor the dredging process efficiently. The existing BIMAC vessel management system was also upgraded with new software. Furthermore, I/O points were updated by removing old points and adding new ones.

While working on this project, additional work was added to the project scope multiple times. All work was completed on time.

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