Improving the Reliability of the Transmission and Distribution Network

The transmission and distribution network play a central role in the electricity system. According to this, their operational safety and reliability are highly important due to the continuous availability of electrical energy. Live Working (hereinafter referred to as LW) is a group of activities where line workers work on energized network elements, reducing the number of blackouts and interrupts on the network. However, in the last few years the electricity system has changed, so that new challenges have been appeared for system operators. One of the main goals is to increase the flexibility of the transmission and distribution network while maintaining the reliability level. As a result, new methods such as Dynamic Line Rating (hereinafter referred to as DLR) are being introduced to increase the capacity of transmission lines. In addition to the emergence of new methods, existing technologies also need to be reviewed. The main aim of this article is to present how live line maintenance (LLM) equipment test and technology education were revised, and how DLR method could improve the reliability of the distribution network.