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一、前言时间分割乘法器(TDM)功率表和电度表在最高精度、线性度和长期稳定性至关重要的用途方面有优越性,可用作国家实验室传递标准、校准实验室主基准、大量工业负荷计费仪表,并可用于工业60Hz 失真波形的测量。目前商用仪表在60Hz 工作时准确度为200×10~(-6)。然而,即使最精密的仪表、市电频率时在宽的输入范围和全部功率因数范围内,也存在低至
I. INTRODUCTION The Time Division Multiplier (TDM) Power Meter and Meter are superior in usage where the highest accuracy, linearity, and long-term stability are critical and can be used as a National Laboratory Transfer Standard, Primary Calibration Laboratory Calibration , A large number of industrial load billing instruments, and can be used for industrial 60Hz distortion waveform measurement. At present, the accuracy of the commercial instrument working at 60Hz is 200 × 10 -6. However, even for the most sophisticated meters, there is also a low to high mains frequency over a wide input range and full power factor range