In order to supervise the system status and restrain harmonic disturbance, accurate harmonicmeasure has become a pivotal problem.
为了监测系统状态、抑制谐波干扰，对其进行准确测量成为一个关键性的问题。
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The system can measure the harmonic in HV power network, and avoid the problem of harmonicmeasure signal distortion caused by capacity type voltage transformer (CVT).
Harmonicmeasure method is the key of the measurement. In this paper, the harmonicmeasure method which based on the multiple frequency rotate transform theory is researched and analyzed.