GIS隔離開關(guān)開合母線轉(zhuǎn)換電流研究
劉小浩
(ABB電網(wǎng)投資(中國(guó))有限公司廈門分公司,福建 廈門 361000)
摘 要:介紹了雙母線變電站中隔離開關(guān)所需開合的母線轉(zhuǎn)換電流能力要求差異,計(jì)算了隔離開關(guān)所需開合的母線轉(zhuǎn)換電流和斷口電壓大小,給出了提高隔離開關(guān)母線轉(zhuǎn)換電流能力的措施,并以 252 kV GIS 隔離開關(guān)為例,證明了提高分合閘速度的設(shè)計(jì)對(duì)高參數(shù)母線轉(zhuǎn)換電流試驗(yàn)的有效性。
關(guān)鍵詞:雙母線變電站;隔離開關(guān);母線轉(zhuǎn)換電流
中圖分類號(hào):TM564.1 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2021)12-0027-04
Research on Bus-Transfer Current Switching of GIS Disconnector
LIU Xiao-hao
(ABB Power Grids Investment (China) Limited Xiamen Branch, Xiamen 361000, China)
Abstract: This article introduced the difference in the bus-transfer current switching requirements required by the disconnector in the double busbar substation. It calculated bus switching current and fracture voltage for the needs of the disconnector. It also provided suggestions for the current conversion capability of the disconnector.This work takes the 252 kV GIS disconnector as an example. It proves that the switch design for the speed improvement of the opening and closing is effective for the high-parameter bus-transfer current test.
Key words: double busbar substation; disconnector; bus-transfer current
參考文獻(xiàn)
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