误差分析表明，偏置电容法在三相电压不平衡度较小时可以满足测量精度的要求。
Error analysis result shows that biased capacitor method can meet the need of measurement accuracy while the unbalance of three phase voltages is relatively small.
它涵盖五个方面：供电电压允许偏差、公用电网谐波、三相电压不平衡度、电力系统频率允许偏差、电压允许波动和闪变。
It covers five aspects: supply voltage tolerance, utility harmonic, three-phase voltage unbalance, power system frequency tolerance, voltage fluctuation and flicker.
在此基础上研究了电能质量监测理论，详细介绍了电压电流有效值、功率、三相不平衡度、谐波和闪变的数字测量方法。
Based on this requirement, this paper introduced the theory of power quality monitoring, include RMS of voltage and current, power, three-phase unbalance, harmonic and flicker.
在此基础上研究了电能质量监测理论，详细介绍了电压电流有效值、功率、三相不平衡度、谐波和闪变的数字测量方法。
Based on this requirement, this paper introduced the theory of power quality monitoring, include RMS of voltage and current, power, three-phase unbalance, harmonic and flicker.
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