摘要
介绍了应用频率响应分析法检测变压器绕组变形的两个实例。指出在检测中通过对前后频谱曲线的分析,能准确有效地发现变压器内部电气及机械事故隐患,对于变压器及电网的安全运行,有着重要意义。但频率响应分析法不一定能够有效反映出变压器绕组变性发生单一扭动变形这类故障,绕组变形的诊断仍需使用多种试验手段综合分析和判断。
The two examples of the fault diagnosis of transformer winding deformation applying frequency response analysis are introduced. The electric and mechanical hidden trouble in the power transformer can be detected based on analysis of the old and current frequency chart curve. This technique places a significant role in the securely running of the transfermer and electricity net. However,the frequency response analysis can not reflect the errors about the winding just happen twist deformation. Then the diagnoses of the winding deformation need more experimentation and make a fight judgement.
出处
《电气传动自动化》
2006年第3期53-56,共4页
Electric Drive Automation
关键词
变压器
频率响应分析法
绕组变形
频率响应曲线
扭动变彤
power transformer
frequency response analysis
winding deformation
frequency response curve
twist deformation
