REG: Network Analyzer for Power System Impedance Measurements

北卡罗莱纳州立大学电子与计算机工程系将购买一台惠普3577B网络分析仪和一台苹果Quadra 950计算机。新设备将支持由北卡罗莱纳州立大学电力研究中心资助的正在进行的电力质量和效率研究。非线性负载产生的线电流和线电压畸变日益降低电能质量，并造成意想不到的高频损耗。其中一个项目是网络分析仪测量线路阻抗，找出线路电流畸变对线路电压畸变的影响。在第二个项目中，网络分析仪将测量变压器和电机阻抗，以发现由于电压和电流畸变造成的额外损耗。阻抗测量可以更好地了解具有非线性负载的电力系统的运行情况，并且对于在存在电流和电压畸变的情况下保持电力质量和效率至关重要。＊＊＊

9411567 Kelley The Department of Electrical and Computer Engineering at North Carolina State University will purchase a Hewlett-Packard 3577B Network Analyzer and an Apple Quadra 950 Computer. The new equipment will support ongoing power quality and efficiency research funded by the Electric Power Research Center of North Carolina State University. Increasingly, the line-current and line-voltage distortion produced by nonlinear loads reduces power quality and creates unexpected high-frequency loss. One project the network analyzer will measure line impedance to find the impact of line-current distortion on line-voltage distortion. In a second project the network analyzer will measure transformer and motor impedance to find excess loss due to voltage and current distortion. The impedance measurements provide a better understanding of power system operation with nonlinear loads and are essential to maintain power quality and efficiency in the presence of current and voltage distortion. ***