一起20kV变压器核相试验结果异常原因分析  

Causes Aanlysis on Abnormal Results of Checking Phase Test for a 20 kV Transformer

作　　者：陈健[1] 张震[1] 

机构地区：[1]淮安供电公司,江苏淮安223002

出　　处：《江苏电机工程》2009年第4期39-41,共3页Jiangsu Electrical Engineering

摘　　要：介绍了一起20 kV变压器核相试验结果的异常情况,并用向量图法详细分析了变压器不同的接线组别和电源相序对核相试验结果的影响,提出了核相试验出现异常时应按照先定相、后核相,先核相序、后核相位,先画图、后判别的原则进行分析和处理的方法。The abnormal results of checking phase test for a 20kV transformer are introduced. The effects of different wiring group and power phase of transformer on the results of checking phase test are analyzed in vector diagram mode. The principles for analyzing and treating with this abnormal problem are given, which are checking phase following phasing, checking phase following checking phase sequence and judging following drawing.

关 键 词：变压器 核相试验 异常 

分 类 号：TM41[电气工程—电器]