电力互感器在线校准用数据采集装置的研制

Development of Data Acquisition Device Used for Power Transformer on-line Calibration

阐述了电力互感器在线校准用数据采集装置的设计原理和结构,介绍了系统的低功耗设计思想和流程,研制了低功耗、高速、高精度的数据采集装置样机,并进行了误差和温度特性试验。实验证明该采集装置可用于在线校准标准电压电流互感器输出信号的采集,并通过光纤将数字信号进行远距离传输,达到了互感器现场在线校准的目的。

The design principle and structure of the data acquisition devices used for power transformer on-line calibration was described in this paper, design ideas and processes of the low-power software were introduced. A prototype of the low-power and high-speed and high-precision data acquisition device was developed, and did error and temperature characteristics experiments. The experiments show that the data acquisition device can acquire the output signal of standard voltage and current transformer used for on-line calibration, then carry out the digital signal in long distance transmission through optical fiber, reaching the purposes of calibrate the transformer online.