三相不平衡运行附加线损的定量分析及降低

Quantitative Analysis and Reduction of Additional Loss of Wire Caused by Unbalanced Operation

在三相四线制供电线路中,三相不平衡运行是不可避免的;通过对三相不平衡运行附加线损进行的定量分析,推导出了其理论计算公式,指明了此附加线损与连接相序有关,提出了简单易行的降低附加线损的方法,并通过实例验证了这种方法的效果是明显的.

Based on the quantitative analysis,the calculation formulas of additional loss of wire caused by unbalanced operation are derived, and the close relationship of the additional loss of wire with the phase sequence of connection are pointed out;A simple method to reduce the additional loss of wire is presented;It is proved that the method is available and effective by practical examples.