Distribution Feeder reclosing has grown rapidly and more complex with the emergence of Distribution Automation (DA) as a method for improving customer reliability. With both substation circuit breakers utilizing reclosing, and standalone reclosers along the distribution circuits, a growing number of customers are fed from sources with auto-reclosing schemes. In the event of a loss of power on a utility feed, many customers with critical loads rely on automatic switching to restore power quickly and efficiently. There are instances where the DA scheme and the customer’s existing equipment’s Automatic Throw Over (ATO) do not coordinate, resulting in unnecessary switching operations. The analysis presented here aims to discuss the numerous ways to adjust either the customer’s or the utility’s equipment to regain proper coordination.
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