651.00 GBX -9.00 ABOUT CUSTOMERS INVESTORS SUSTAINABILITY CAREERS NEWS About Home | About | Our technology | Enabling technologies | Electrical systems Electrical systems Mechanical systems across the company are being enhanced or replaced with electrical systems, which are more flexible in terms of installation, operation, maintenance and management. Examples of these changes are: More Electric Aircraft – Electric Wing de-icing reduced the bleed air needed from the engine and the heaters are more controllable. Unmanned Aircraft – Electrical systems are only switched on when they are needed, hence the whole systems saves on energy. Electrically Powered Ship – Electrical power propulsion systems can be installed in the hull in a more flexible arrangement than a conventional engine and prop-shaft. The technologies described above may seem very different, but the basic technologies for the Electrical System used in these applications are very similar, with a number of key characteristics. Multiple generators and motors: Usually connected to a number of prime-movers. Distribution Networks with high levels of power electronics: These are used for converting AC current to DC current of visa versa, motor drives. High dynamic loads: These can be unpredictable and can have difficult characteristics. Loads can be switched ON/OFF or run continuously, e.g. electrical motors. Autonomous/Intelligent Networks/Distribution Network: There is no back up so these have to be intelligent and respond quickly to faults or changes in the network. Civil READ MORE Marine READ MORE Defence READ MORE Our strategy Who we are Where we operate Our technology Vision Gas turbine technology Enabling technologies Electrical systems Engine health management Design systems and tools High performance computing Manufacturing technology Nuclear technology Materials technology Research Our story Would you like to Work for us? Download annual report Learn about Innovation Speak to Investor relations Speak to a press officer Find out about the AGM 2015 Recent press releases 29 September 2015 Rolls-Royce and American Airlines to dissolve Texas Aero Engine Services LLC partnership 21 September 2015 Rolls-Royce supplies eight gensets to power largest steel factory in Bangladesh 17 September 2015 Rolls-Royce and Sunseeker agree general contract for supply of MTU engines Connect with us Follow us on Twitter View our latest videos Visit our Facebook page Follow us on LinkedIn Visit our Flickr Stay in touch Sign up to get the latest news CONTACT US  Site map Use of cookies Legal information © Rolls-Royce plc 2015 All rights reserved