摘要
与传统的脉冲电流法相比,宽带测量方法可以获取更多的局部放电信息,有助于提高测量的灵敏度和抗干扰能力。研究了基于宽带脉冲电流法的局部放电检测中的脉冲定量技术,介绍了脉冲校准器的设计原理,分析了校准脉冲的波形特征和频谱特征,实测了定量的准确性和线性度。同时在局部放电的实际测量中对两种方法进行了对比,证明了两种方法的等效性。
Compared with traditional IEC method, the wide bandwidth pulse current method could get more information about partial discharge, which will be helpful to improve the sensitivity as well as the ability of anti-interference. This paper study the pulse quantitative determination technology used by partial discharge detection based on wide bandwidth pulse current method. The design principle of pulse calibrator is introduced and the wave and spectrum characteristic of calibration pulse is analyzed. The accuracy and linearity are tested. The equivalence of two methods is proven by partial discharge practical partial discharge measurement.
出处
《高压电器》
CAS
CSCD
北大核心
2009年第5期80-82,共3页
High Voltage Apparatus
关键词
局部放电
宽带脉冲电流法
定量
校正脉冲
partial discharge
wide bandwidth pulse current
quantitative determination
calibration pulse
