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ABB’s Revival Of DC Electricity Products

Posted on May 24, 2011

ABB, a power and automation technology company, has introduced a new direct current (dc) electrical system for marine applications. The new system is part of a revival of power products using dc electricity, and is designed to provide efficient power distribution and electric propulsion for a wide range of vessels, according to ABB.

The system is designed for ships with low-voltage onboard power systems, such as offshore support vessels, tug boats, ferries and yachts, and can reduce fuel consumption and emissions by up to 20%, the company said. In traditional electrical propulsion vessels, multiple dc connections are made from the ac circuit to thrusters and propulsion drives, which account for more than 80% of electrical power consumption. ABB’s onboard dc system connects all dc links and distributes the power through one main dc circuit.

The system is designed for ships with low-voltage onboard power systems, such as offshore support vessels, tug boats, ferries and yachts, and can reduce fuel consumption and emissions by up to 20%, the company said. In traditional electrical propulsion vessels, multiple dc connections are made from the ac circuit to thrusters and propulsion drives, which account for more than 80% of electrical power consumption. ABB’s onboard dc system connects all dc links and distributes the power through one main dc circuit.

In addition, ABB's onboard dc system enables supplementary dc energy sources – solar panels, fuel cells or batteries – to be plugged directly into the ship’s dc electrical system.

For more information: www.abb.com

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