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发明公开
CN108680888A 一种低温断线故障下全光纤电流互感器准确度的方法及系统 无效 - 驳回

一种低温断线故障下全光纤电流互感器准确度的方法及系统
摘要：
本发明公开了一种低温断线故障下全光纤电流互感器准确度测试方法及系统，所述方法包括：将全光纤电流互感器放置在特定环境下，将所述特定环境的温度在预设时间段内由M度下降至N度；在所述预设时间内向全光纤电流互感器以及标准电流互感器输入相同的预设参数的标准电流；实时对所述全光纤电流互感器的全光纤输出电流以及标准电流互感器的标准输出电流进行采集；将所述实时采集的全光纤输出电流与其对应的实时标准输出电流进行对比，输出实时的准确度；在预设时间段内对所述全光纤电流互感器进行断线操作，并确认实时的准确度变化情况；所述断线操作用于模拟全光纤电流互感器光纤断裂的情况。
摘要（英）：

The invention discloses a method and a system for all-fiber current transformer accuracy on condition of a low-temperature wire breakage fault. The method comprises the steps of placing an all-fiber current transformer in a specific environment, and reducing the temperature of the specific environment from M DEG C to N DEG C; inputting standard current with the same preset parameter into the all-fiber current transformer and a standard current transformer in the preset time period; acquiring the all-fiber output current of the all-fiber current transformer and the standard output current of the standard current transformer in real time; comparing the real-time acquired all-fiber output current with corresponding real-time standard output current, and outputting real-time accuracy; performing a wire breakage operation on the all-fiber current transformer in the preset time period, and confirming a real-time accuracy change condition. The wire breakage operation is used for simulating afiber breakage condition of the all-fiber current transformer.

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