一種地鐵大分區(qū)保護(hù)介紹及測試
王彩麗,胡寶,胡明會,杜小磊,王占輝,朱獻(xiàn)周
(許繼電氣股份有限公司,河南 許昌 461000)
摘 要:地鐵中壓供電系統(tǒng)多采用大分區(qū)供電結(jié)構(gòu),系統(tǒng)發(fā)生故障時,各保護(hù)之間的配合較為重要。從地鐵保護(hù)裝置的測試角度出發(fā),對大分區(qū)供電系統(tǒng)保護(hù)配置及測試進(jìn)行了分析,并列出供電系統(tǒng)故障時保護(hù)配合方案、主要保護(hù)原理、測試項(xiàng)目及重要測試項(xiàng)目的測試方法,保證了地鐵系統(tǒng)保護(hù)配置的合理性及保護(hù)功能實(shí)現(xiàn)的正確性。
關(guān)鍵詞:地鐵供電系統(tǒng);保護(hù)配置;保護(hù)測試
中圖分類號:TM922;U231+.8 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2020)08-0052-05
Introduction and Test of a Kind of Metro Large District Protection
WANG Cai-li, HU Bao, HU Ming-hui, DU Xiao-lei, WANG Zhan-hui, ZHU Xian-zhou
(XJ Electric Co., Ltd, Xuchang 461000, China)
Abstract: Most metro medium-voltage power supply systems use large district power supply structures.When the system fails, the cooperation between the protections is rather important. From the perspective of the test of the subway protection device, the protection configuration and test of the large district power supply system are analyzed, and the protection cooperation plan, main protection principles, test items and test methods of important test items in the case of power supply system failure are listed, so as to ensure the rationality of the subway system protection configuration and the correctness of the protection function realization.
Key words: metro power supply system; protection configuration; protection test
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