Power and renewables

Enhanced Smart Cable Guard technology for medium voltage cable systems reduces operating costs and increases reliability for utilities and industrial asset owners

Enhanced smart cable guard technology

Smart Cable Guard solution continuously monitors and immediately detects the exact location of faults in medium voltage (MV) power cable systems.

Real-time cable condition information accelerates repair time, increases reliability of MV power cable systems and reduces overall service costs for utilities and industrial asset owners
DNV GL launches latest technology advancement of its Smart Cable Guard solution at CEPSI, October 26-30, Korea

ARNHEM, The Netherlands – 28 October 2016 – DNV GL, a leading global energy advisory and testing authority, today announced the latest advancement in its Smart Cable Guard solution. In addition to the existing capability that allows system operators and industrial asset managers to detect and locate partial discharges on-line, Smart Cable Guard now immediately pinpoints, within 1% accuracy, the exact location of a fault in a MV cable system and reduces the time to repair. With this real-time insight, operators and asset managers can drastically reduce the time customers are affected by faults – and under certain circumstances they can also decrease the frequency by which customers are affected – ultimately cutting overall system costs. 
The solution reduces maintenance costs, eliminates power interruption during daily use, mitigates negative publicity and claims, and enhances the operator’s reputation for innovative and reliable grid management. Integrated into one solution, Smart Cable Guard detects and locates any fault and issues an immediate warning, independent of the network grounding and short circuit current level - even if there is no short circuit current flowing. It is also provides the ability to immediately detect the location of intermittent and hidden faults.

“Smart Cable Guard has proved to be a very attractive solution for accurate and quick on-line detection of faults in our network. For this reason, we already guard our circuits using DNV GL’s solution, and there will be more to come,” said Denny Harmsen, Senior Innovation Consultant at Alliander, one of the main Distribution Network Utilities in the Netherlands.

Dr. Fred Steennis, Principal Consultant and Power Cable Expert at DNV GL said, “In urban environments where the cost of power outages is high, medium voltage power cables are the utility’s most important asset while a failure in an industrially-owned setting can cause severe disruption and financial loss. Offline monitoring of these cables is like a security camera that takes a picture once a year, while Smart Cable Guard’s new real-time insight offers operators continuous surveillance of the cable network, and equips them with the right information for immediate action.”

DNV GL invests 5% of its revenue in research and innovation, such as joint industry projects with partners in industry, of which Smart Cable Guard is one. Learn more about DNV GL’s Smart Cable Guard solution at www.dnvgl.com/SmartCableGuard.

About DNV GL
DNV GL is a global quality assurance and risk management company. Driven by our purpose of safeguarding life, property and the environment, we enable our customers to advance the safety and sustainability of their business. We provide classification, technical assurance, software and independent expert advisory services to the maritime, oil & gas, power and renewables industries. We also provide certification, supply chain and data management services to customers across a wide range of industries. Operating in more than 100 countries, our experts are dedicated to helping customers make the world safer, smarter and greener.

DNV GL delivers world-renowned testing, certification and advisory services to the energy value chain including renewables and energy management. Our expertise spans onshore and offshore wind power, solar, conventional generation, transmission and distribution, smart grids, and sustainable energy use, as well as energy markets and regulations. Our experts support customers around the globe in delivering a safe, reliable, efficient, and sustainable energy supply.

Learn more at www.dnvgl.com/power-renewables