New technologies for low voltage distribution networks

This paper presents several emerging technologies for low voltage (LV) distribution networks that have the potential to enable carbon savings. The technologies include: active in-line voltage regulators; all-electronic power transformers; flywheel energy storage; solid-state fault current limiters; LV switching devices; and on-load tap changers for secondary substation transformers. An overview of each of the technologies is provided and reasons are suggested regarding the requirement for the technologies in future networks. An attempt has been made to assess the current status of deployment of the various technologies and to identify the key barriers to uptake of the technology in the UK.