Rawi, Iryani Mohamed

Quality Evaluation of MV/HV Network Components: Experience with Failures & Lessons Learned

Dr. Rawi received a bachelor degree in Electrical Engineering from Universiti Teknologi and completed her doctorate focusing on protecting transmission lines against lightning. She has worked in the Engineering Department of the Transmission Division at Tenaga Nasional Berhad since 2002. Originally, she was responsible for design and innovation of transmission lines equipment with main interests in transmission line engineering & design, surge arresters and lightning protection on power systems. More recently, she has headed up the Quality Control & Certification of Components used on TNB’s extensive transmission and distribution networks.

It has become important for asset owners/service providers to assess their network equipment and components to ensure reliable performance over the course of their expected service life. In this regard, a quality evaluation report helps confirm good quality as well as identify possible deficiencies before any product is used in the system. This presentation reports on these activities at Tenaga Nasional Berhad – the main power utility in Malaysia. Quality evaluation activities have been adopted by TNB for the past two decades and proven highly successful in preventing major failures caused by faulty products.