J.M. Martinac Shipbuilding* in Tacoma, WA, has built ships since 1924. The company started with fishing vessels, and over the years has built more than 300 vessels of various types. Martinac’s latest project, the Northern Leader, is the largest longliner ever built in the US and one of the largest in the world. It is also eco-friendly.
VLT® AutomationDrive FC 302 and VLT® Soft Starter MCD 500 provide quick and accurate control of high- and low-pressure seawater pumps on the remotely operated trencher laying HVAC subsea cables.
By using VLT® AC drives to adapt the flow rate from seawater cooling pumps to the actual cooling demand, the company has significantly reduced its energy consumption.
VLT® AutomationDrives and VLT® HVAC Drives are used with pumps, compressors, thrusters and steering gear to help this modern fishing vessel save energy and secure the best price for its catch.
VLT® high power AC drives strengthen this new cable-laying vessel’s tunnel thrusters, and active harmonic filters provide high-voltage quality for its 3.2 MW generator.
VLT® AC drives control the fans to ensure a comfortable indoor climate and efficient machine room ventilation. They also control the compressors and pumps in the refrigeration and cargo systems.
VLT® AC drives efficiently control the water pumps and compressors as part of the retrofit of the vessel’s refrigeration system.