220kV变电站10kV母线零序电压测量值异常情况分析  

An Analysis of Abnormal Zero-sequence Voltage Measured Value of the 10 kV Bus at the 220 kV Substation

作　　者：周文[1] 潘朝霞[2] 刘英[2] 赵文哲[2] 段晓波[1] 毛志芳[3] 

机构地区：[1]河北省电力公司电力科学研究院,河北石家庄050021 [2]沧州供电公司,河北沧州061001 [3]石家庄供电公司,河北石家庄050051

出　　处：《电气自动化》2014年第2期66-68,83,共4页Electrical Automation

摘　　要：对一220 kV变电站10 kV母线现场测量的3次谐波电压含量较大,造成10 kV母线零序电压测量值异常进行了详细介绍,通过对电容器投入后记录的波形进行分析,并与现场实测数据进行对比和研究,指出10 kV母线零序电压测量值异常原因,并且提出了相关的防范措施。This paper introduces in detail the abnormal zero-sequence voltage measured at 10 kV bus of a 220 kV substation,caused by high third-order harmonic voltage.Based on the analysis of the waveform recorded after capacitor started to work and through comparison with the data measured on site,it further points out the cause of the abnormal zero-sequence voltage measured at the 10 kV bus and proposes protective measures accordingly.

关 键 词：变电站 谐波电压 零序电压 电容器 

分 类 号：TM76[电气工程—电力系统及自动化]