电子式互感器在数字变电站的校验技术应用

Calibration Technology Application of Electronic Transformer at Digital Substation

电子式互感器的诞生是互感器准确化、传输光纤化和输出数字化发展趋势的必然结果。电子式互感器是数字变电站的关键装备之一。传感方法对电子式互感器的结构体系有很大影响。光学原理的电子式互感器结构体系简单,是无源的电子式互感器。电磁测量原理的电子式互感器是有源电子式互感器。光纤传感技术、光纤通信在变电站建设运营过程中,对于电子式互感器数字技术的应用已提上日程,文章以数字化校验技术在数字变电站中的应用原理、系统结构以及核心技术做阐述分析,为变电站的正常运营提供技术保障。

Electronic transformer birth is inevitable outcome of transformer accuracy,optical fiber transmission and output digitization development trend.Electronic transformer is one key instrument for digital substation.Sensing method has impact on structure system of electronic transformer.Electronic transformer with optical principle has simple structure is passive while electronic transformer with electromagnetic principle is active.Optical fibre sensing technology and optical fibre communication at substation construction and operation process is dependent on electronic transformer application and is on the agenda.The article introduces application theory,system structure,core principle of digital calibration technology at substation to provide technical support for its normal operation.