電子式電流互感器的技術研究進展
王鐵鋼，辛守喬
（國網吉林省電力有限公司檢修公司，吉林 長春 130022）
摘 要：電子式電流互感器(ECT) 具有低功耗、高絕緣性和智能化等優點。介紹了各種ECT 工作原理和采用的技術，并指出各自的優點及存在的問題，展望了ECT 的發展趨勢，指出今后將是有源ECT、無源ECT 共同發展的局面，無源ECT 會在發電廠、變電站等重要電力場所推廣使用，而中低壓小電流的測量將是有源ECT 的發展空間。
關鍵詞：電子式電流互感器；變電站；智能電網；工作原理；發展趨勢
中圖分類號：TM452 文獻標識碼：A 文章編號：1007-3175(2017)02-0007-06
Technology Research Progress of Electronic Current Transformer
WANG Tie-gang, XIN Shou-qiao
（State Grid Jilisheng Electric Power Supply Company Maintenance Company, Changchun 130022, China）
Abstract: The electronic current transformer (ECT) possesses low power consumption, high insulativity and intelligentization etc advantages. Introduction was made to various kinds of ECT working principle and the adopted technology. The concrete advantages and existing problems were pointed out. This paper expected the development tendency of ECT and presented the joint development situation of active and passive ECT in the future. The passive ECT would be generalized in power station and substation etc important power place, while the measurement of low median voltage and small current would be the development space of active ECT.
Key words: electronic current transformer; power substation; smart grid; working principle; development tendency
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