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摘要
A method for calibration of conventional and electronic transformers is proposed.It is based on synchronization sampling and discrete foruier transformation (DFT) algorithm.According to the method, the calibration system has been founded.The factors that affect measurement accuracy of calibration system are thoroughly analyzed and the compensation method is adopted to improve the accuracy of the system.The calibration system has been tested in National Center for High Voltage Measurement.The tested results show that it fulfills the requirements for calibrating transformers with precision class up to 0.2.
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单位华南理工大学; 广东电网公司电力科学研究院
