摘要
电子式电流互感器(ECT)具有低功耗、高绝缘性和智能化等优点。介绍了各种ECT工作原理和采用的技术,并指出各自的优点及存在的问题,展望了ECT的发展趋势,指出今后将是有源ECT、无源ECT共同发展的局面,无源ECT会在发电厂、变电站等重要电力场所推广使用,而中低压小电流的测量将是有源ECT的发展空间。
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.
作者
王铁钢
辛守乔
WANG Tie-gang;XIN Shou-qiao(State Grid Jilisheng Electric Power Supply Company Maintenance Company, Changchun 130022, China)
出处
《电工电气》
2017年第2期7-12,69,共7页
Electrotechnics Electric
关键词
电子式电流互感器
变电站
智能电网
工作原理
发展趋势
electronic current transformer
power substation
smart grid
working principle
development tendency
