Study on the influence of low temperature FOCT state parameters

Haiqing Xu; Junchang Huang; Feng Zhou; Gangjie Lou; Wei Zhou; Li Xia

doi:10.1117/12.2644091

19 December 2022 Study on the influence of low temperature FOCT state parameters

Haiqing Xu, Junchang Huang, Feng Zhou, Gangjie Lou, Wei Zhou, Li Xia

Proceedings Volume 12321, Advanced Sensor Systems and Applications XII; 123210G (2022) https://doi.org/10.1117/12.2644091
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

Fiber-optic current transformer (FOCT) is widely used in DC power transmission and transformation system of power grid. Power grid users pay attention not only to its measured output value, but also to its state quantity. They expect to find equipment failure in advance by monitoring the internal state parameters of optical path and reduce the risk of abnormal shutdown. This work mainly analyzes the modulation and demodulation process of FOCT based on PZT modulation, and extracts the condition monitoring parameters for fault diagnosis. And the influence of typical low-temperature fault process on outdoor modulation circuit devices is analyzed, and the data of performance deterioration process of modulation tank is collected through accelerated aging test, which explains the influence of performance deterioration of low-temperature devices on state parameters.

Conference Presentation

Citation Download Citation

Haiqing Xu, Junchang Huang, Feng Zhou, Gangjie Lou, Wei Zhou, and Li Xia "Study on the influence of low temperature FOCT state parameters", Proc. SPIE 12321, Advanced Sensor Systems and Applications XII, 123210G (19 December 2022); https://doi.org/10.1117/12.2644091

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