Study on Electrical Characteristics of Metal-Oxide Surge Arresters in Medium Voltage Power System

Li Zhang; Kun Yang; Li Mei He

doi:10.4028/www.scientific.net/AMR.960-961.1073

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 960-961Study on Electrical Characteristics of Metal-Oxide...

Study on Electrical Characteristics of Metal-Oxide Surge Arresters in Medium Voltage Power System

Abstract:

The index system for electrical characteristics of metal-oxide surge arresters is proposed and established, which is based on rated voltage (U_r), continuous operating voltage (U_c), nominal discharge current (I_n), overvoltage protection and insulation coordination including lightning overvoltage protection level, operating overvoltage protection level and coordination coefficient (K_s). The study considers both selection and application of overvoltage protection devices for the electrical equipments in 3-35kV medium voltage power system, and comparatively calculates and analyzes the main parameters between two types metal-oxide surge arresters (without gaps and containing series gapped structures), and illustrates their technical features and puts forward suggestions on how to improve the effective utilization. The results of 10kV power distribution system are simulated to show that the conclusions are feasible and available in the practical engineering application.

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Periodical:

Advanced Materials Research (Volumes 960-961)

Pages:

1073-1076

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.960-961.1073

Citation:

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Online since:

June 2014

Authors:

Li Zhang*, Kun Yang, Li Mei He

Keywords:

Application, Electrical Characteristics, Medium Voltage Power System, Metal-Oxide Surge Arresters, Selection

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* - Corresponding Author

References

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