The invention provides a Sagnac interferometer fiber optical current transformer, which comprises a Sagnac interferometer light path, from 110kV ~ 500kV ~ 1000kV high voltage parts to the power station control room ground potential transmission fiber and suitable composite insulators, signal processing circuit, and the electronics unit interface circuit module and the optical fiber current transformer based on Faraday magneto optic effect, transplanted the basic optical and signal processing technology of all fiber Sagnac interferometer, especially in high voltage 110kV ~ 220kV, ultra high voltage and extra high voltage 500kV, 750kV + 800kV, 1000kV power current measurement and relay protection in optical fiber itself current isolation and power inherent insulation, The closed sensing fiber coil surrounding the current conductor has the advantage of accurate differential measurement for stray magnetic fields with the ability to resist interference.
【技术实现步骤摘要】
【技术保护点】
一种萨格奈克干涉仪式全光纤电流互感器,它包括萨格奈克干涉仪的光路、从110kV~500kV~1000kV高电压部位至电站控制室地电位的传输光纤、合适的复合绝缘子、信号处理电子学电路、以及与合并单元的接口电路等模块。
【技术特征摘要】
【专利技术属性】
技术研发人员:卫炎,李佳程,薛靓,康伟,李荣翔,赵洪山,王正海,王洪兴,
申请(专利权)人:上海新跃仪表厂,山东富澳电力设备有限公司,
类型:发明
国别省市:31[中国|上海]
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