Mr. Kortajarena received his M. S. Degree in Electrical Engineering from the University of the Basque Country in Spain. He has been leading the onsite testing activities since 2002, mainly including diagnosis of large rotating machines at power plants and commissioning tests of high voltage cables. Since 2004, he manages the Electrical Labs from TECNALIA (formerly LABEIN) offering third-party accredited testing services for LV, MV and HV products for T&D networks.
Standards determine testing to validate ratings of a cable and compliance with operating conditions based on network parameters. The need for accessories to lay extended lengths of cables and connect them to the grid is another key factor to guarantee reliability. But even when compliance of cables and accessories to standards is proven, activities such as storage, transport, laying and assembly risk causing failures and must be identified before commissioning. After-installation tests are critical to guarantee safe cable operation under rated operating conditions. This presentation reviews years of experience testing high voltage insulated cables and explains key lessons learned when performing and interpreting commissioning tests.