When Displaying the Harmonic Content of Each Order on the WT Series Power Analyzer, What Value is Used for the Denominator?

The value depends on the model of the power analyzer.

For Precision Power Analyzer WT1000, WT2000, WT100, and WT200, it is fixed to the fundamental wave. For power analyzers with 7 segments LED, the relative harmonic content is fixed to the fundamental wave.
Relative harmonic content=（each harmonics x 100)/Fundamental Wave[%]
For WT1600, WT3000, and WT500, it is selectable.
1. When the denominator of the computing equation for distortion is a total value (Total),
Relative harmonic content = (each harmonics x 100)/Total Waves[%]
2. When the denominator of the computing equation for distortion is the fundamental wave (Fundamental),
Relative harmonic content = (each harmonics x 100)/Fundamental Wave[%]

中等量程的WT500小巧且便于使用。使用其彩色TFT显示器可以观测数值和波形测量。提供1到3个输入单元，基本功率精度为0.1%，带宽为100kHz。

WT3000高精度功率分析仪提供最高精度的测量。此产品已成为行业标准，用于变频器、电机驱动器、照明系统和电子镇流器、UPS系统、飞机电力系统、变压器测试和其它电力转换设备的研发。WT3000的基本功率精度达0.02%，带宽为1MHz。

功率计或称瓦特计，可以测量产生、转换或消耗电能的设备各项特征，包括设备的各项参数，如：功率（瓦特）、功率因数、谐波和效率等等。

YOKOGAWA数字功率分析仪，性能优越、测量可靠，支持各种应用，非常值得拥有。尤其是YOKOGAWA WT300E功率计，在全球功率计市场上口碑与地位日益跃升。