Abstract
After a distributed power supply is connected to a distribution network, the distribution network changes from a single-supply radiant network to a network. When a fault occurs in the distribution network, the size and direction of the short - circuit current will change, giving rise to conventional relay protection. Normal operation brings a series of problems. This paper proposes the configuration principles and requirements for distributed protection relay protection and safety automatic devices with distributed power supply, which can provide reference for the safe and reliable operation of distribution networks with high-permeability distributed power supply.
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