Method for grading transformer station partial discharge live detection electromagnetic interference signals

The invention discloses a method for grading transformer station partial discharge live detection electromagnetic interference signals. The method performs classified statistic on various kinds of electromagnetic interference signals in various detection methods, uses the interference signal intensity and discrete degree thereof as the basis of interference grading, objectively and accurately grades the interference grades of the electromagnetic interference signals, quantitatively describes the electromagnetic interference signals, and provides a reference basis for a standardized interference test platform and establishment of a partial discharge detection device anti-interference performance evaluation system. 本发明公开了种变电站局部放电带电检测电磁干扰信号的分级方法，对各种检测方法下的各类电磁干扰信号的幅值进行分类统计，利用干扰信号强度及其离散程度作为干扰分级的基础，客观准确的对电磁干扰信号进行干扰等级划分，定量的描述了电磁干扰信号，为标准化干扰测试平台及建立局部放电检测装置抗干扰性能评价系统提供参考依据。