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Gasinsulatedsubstation (GIS)havebeenusedinawiderangeofvoltagelevelfrom 12 3kVto765kVorabove .Asvoltagelevelsexceed 30 0kV ,failurescausedbyelectromagnetictransientphenom enabegintoappear .Theseelectromagnetictran sientsarecausedbydisconnectswitchingintheGIS .This… 相似文献
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