Abstract
In recent years, primary and secondary integration of distribution switchgear has been widely used in the distribution network. In the future, primary and secondary integration will become the mainstream development trend of power distribution switchgear, especially in 2021, the State Grid Corporation of China will issue a new type of primary and secondary integration standardization. The typical design plan of power distribution switchgear have added two configuration methods: electronic transformer and digital transformer. So the traditional independent test method of power distribution automation terminal or power distribution switchgear are no longer applicable to the current new-type primary and secondary fusion standardized power distribution switchgear. At the same time, there is no standard basis for direct reference. This article mainly analyzes the key test items for performance verification of primary and secondary fusion power distribution switchgear, and propose corresponding test detection methods.
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