Abstract

The research on the rapid secondary reclosing technology proposed by Shandong Electric Power Grid (short delay primary reclosing + long delay secondary reclosing) and boundary switch reclosing and fixed value matching system within the framework of the grid is introduced in this paper. The different distribution network structure identifies the selection of relevant matching principle and secondary reclosing scheme, which changes the current mode which puts emphasis on the safe operation of the system side. The secondary reclosing shortens the user power outage time, achieves the reliability of the user's power supply, improves the quality of power, and provides a high quality distribution network for the users. By continuously optimizing the reclosing strategy and the corresponding protection configuration setting principles, the system to respond to the actual user needs is fully coordinated to improve the reliability of power supply of distribution network.

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