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陈戈, Weigen Chen, Caixin Sun, Yang Yun, Zhengjun Xie
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-1年11月30日
This paper illustrates the methods of extracting instinct parameters and deformation recognition by using wavelet transform, which applied in low voltage impulse (LVI) method on the transformer inding deformation detection. The results shows that it is effective to eliminate the noises by using wavelet transform, meanwhile, it can also make measurement repetitive and has a property on model recognition on.
low voltage impulse method, wavelet transform, deformation, recognition
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陈戈
,-0001,():
-1年11月30日
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13浏览
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陈戈, 胡雨龙, 陈伟根, 孙才新
,-0001,():
-1年11月30日
采用一种高分子薄膜电容式湿度传感器做为测量系统的感湿元件实现SF6气体中微水含量的在线测量,并通过温度补偿、曲线拟合等方法提高测量的准确性。模拟试验结果表明:研究的在线监测系统能反映SF6气体中微水含量的变化,为在线监测系统的现场实施提供了良好的技术基础。
SF6气体 微水含量 在线监测
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【期刊论文】Study on Fault Diagnoses Method of Transformer DGA with Fuzzy Model Hiberarchy Classification
陈戈, Weigen Chen, Caixin Sun, Ruijin Liao, Junfeng Guo, Shuaijun Shi, Zelong Cai
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-1年11月30日
Because of being short of studing how to carve up the patterns of insulation faults in the field of transformer faults diagnoses, fuzzy classification theory was applied to the problem of dissolved gas analysis (DGA) in transformer oil. 183 fault samples were partitioned into a hiberarchy faults tree, and basing on which a new approach was presented for DGA, by which a insulation fault has to be diagnosed by stages. Through enhancing the veracity in every stages. a more accurate method was attained.
Transformer DGA, Fuzzy Model, Multi-layers Classification, Fault Diagnoses
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陈戈, 陈伟根①, 廖瑞金①, 杜林①, 孙才新①
,-0001,():
-1年11月30日
本文详细论述了变电站电气设备绝缘在线监测系统的原理,并详细介绍了油中溶解气体、介损、MOA阻性电流的监测方法。本文将在线监测到的油中溶解气体数据与离线预防性试验数据进行了比较,验证了在线监测装置的实用性,并成功预警了该变压器的一次内部热故障。变电站其他电气设备绝缘的长期监测数据稳定可靠,为绝缘维护奠定了基础,同时还对基于在线监测的绝缘维护技术进行了探讨。
变电站 在线监测 绝缘 维护
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