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在过去几年里,对光纤电压、电流互感器的研究与开发进展得比较快。它们同电力工业中所用的常规电压、电流互感器相比,具有绝缘性能好、抗电磁干扰等优点,有很好的应用前景。一些研究人员和公司都报道过有关光纤电压、电流互感器的研究状况。象ABB电气公司Cook的磁光电流互感器的开发,日本Sumiatomo电气工业公司的利用Bi_(12)SiO_(20)单晶泡克斯效应的电感传感器和利用ZnSe多晶与Bi_(12)SiO_(20)单晶法拉第效应的磁场传感器,这些传感器都用光纤来传输传感头的入射光和出射光。
In the past few years, research and development on optical fiber voltage and current transformers have progressed rapidly. Compared with the conventional voltage and current transformers used in the power industry, they have the advantages of good insulation performance, anti-electromagnetic interference and the like, and have good application prospects. Some researchers and companies have reported on the research status of fiber voltage and current transformers. The development of magneto-optic current transformers, such as ABB’s Cook’s magneto-optical current transformer, the inductive sensor using the Bi 12 SiO 20 single-crystal Sike effect by Sumitomo Electric Industries of Japan, and the use of ZnSe polycrystal with Bi 12 SiO 3 20) Single-crystal Faraday-effect magnetic field sensors that use optical fibers to transmit incident and outgoing light from the sensor head.