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hgis hvdc Vacuum Charging enervac

China voltage Standards,GB standards,english version ... specifications of high-voltage direct current circuit-breakers for high-voltage direct current transmission using voltage sourced converters(VSC-HVDC) voltage China National Standards: GB/T 26218.4-2019: Selection and dimensioning of high-voltage insulators intended for use in polluted conditions—Part 4: Insulators for d.c. systems ...

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