Enhancing the performance of electricity networks using Smart Neutral Treatment
Smarter grids are increasingly becoming a reality. However, one aspect of the smarter operation of electricity grids that rarely gains the headlines is neutral treatment. Over the past few years, I’ve been working with colleagues in ESB Networks to investigate alternative neutral treatments to optimise the performance of the 20kV networks.
ESB’s 20kV system has historically been resistance earthed. This means that the level of current that flows during an earth fault is restricted, and the faulted circuit is tripped, resulting in a loss of supply to customers. To improve security of supply, ESB Networks has been investigating two different neutral treatments, namely:
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