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- W4380030704 abstract "High voltage shunt reactor((referred to as HSR, the same below)) is an important equipment used to absorb reactive power and limit overvoltage level in power system. Its frequent fault is inter-turn short circuit of winding. The traditional inter-turn protection based on the principle of zero sequence component has been maloperation for many times on site. Based on the analysis of the structure and electrical characteristics of HSR, this paper defines the root cause of the maloperation of traditional inter-turn protection, and puts forward a new type inter-turn protection scheme for HSR, which composed of core saturation criterion, zero sequence power direction criterion and zero sequence impedance criterion. The experimental and operation results show that no matter whether the core of HSR is saturated or not, this scheme can ensure that not only not operate reliably when air-drop without fault, but also operate sensitively and reliably when there is more than 2% inter-turn short circuit fault, so as to solve the problem of maloperation of traditional inter-turn protection due to core saturation." @default.
- W4380030704 created "2023-06-10" @default.
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- W4380030704 date "2023-04-01" @default.
- W4380030704 modified "2023-09-27" @default.
- W4380030704 title "Research on the Influence of Core Saturation for HSR on its Inter-turn Protection" @default.
- W4380030704 doi "https://doi.org/10.1109/pandafpe57779.2023.10140998" @default.
- W4380030704 hasPublicationYear "2023" @default.
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