Posted on July 10, 2017
By Larz Bourne, Maritime Journal
An Indar manufactured submersible motor such as will be installed on the Chinese newbuild dredger
Dutch marine electrical system integration specialists Bakker Sliedrecht will deliver two submersible motors for a new hopper dredger being built for China’s Chang Jiang Waterway Bureau (CWB).
Georgia USA based GIW Industries, which manufactures heavy duty dredge pumps, has ordered the two powerful submersible motors from Bakker Sliedrecht. They are destined for the newbuild dredger being built at Wenchong Shipyard in China for CWB. The large hopper dredger will work on dredging projects along the Yangtze River, the longest river in Asia.
The order consists of two oil-filled submersible motors, including a control system that communicates directly with the frequency converter and pump. Bakker Sliedrecht will also supply the pressure compensation system, a vital part of this critical equipment.
The submersible motors are to be installed in the suction tubes of the new hopper dredger. Bakker Sliedrecht will be responsible for the FAT tests, supervise the installation of the submersible motors on site, commission the equipment and participate in the sea trials. Bakker Sliedrecht will also have an advisory role for the routing of the high voltage cables. The submersible motors are going to be coupled directly to the pump to eliminate the need of a gearbox. The submersible motors, manufactured by Indar, are rated 1,700 kW at 275 rpm.
Bakker Sliedrecht will act as the linking pin between approximately ten companies that will be working on the suction tubes. Experts from Bakker Sliedrecht will be available at all times to assist with any challenges that may occur during the project. Moreover, Bakker Sliedrecht will make sure that EMC issues are prevented by keeping a close eye on the entire suction tube project.
Jonathan Samuel, vice president, sales and marketing at GIW Industries said: “Our experience with Bakker Sliedrecht, gained during earlier projects in the Chinese dredging market, strengthens our confidence in a great project execution. It is very pleasant to work with a company that has broad experience with submersible motors and has knowledge of the electrical challenges that you come across when building new suction tubes.”
The hopper dredger will be delivered to CWB in 2018.
Source: MJ
