南方电网技术2016，Vol.10Issue(9)：69-76,82,9.DOI:10.13648/j.cnki.issn1674-0629.2016.09.011
空气开关柜局部放电特征分解组分实验与仿真
Experiment and Simulation on Characteristic Decomposition Components Under Partial Discharge in Air Switchgears
陈林聪 1张晓星 2裘吟君 1桂银刚 2周磊2
作者信息
- 1. 海南电力技术研究院，海口570125
- 2. 武汉大学电气工程学院，武汉430072
- 折叠
摘要
Abstract
Based on the needle-plate model,the decomposition products and production mechanism under different humidity and par-tial discharge voltage are analyzed by experiment and theoretical calculation. The Materials Studio is used to study the possible compo-nents,and the components production pathway is studied. Through analyzing the reaction heat and the reaction barrier the components involved in,the reason why the CO and NO2 components is chosen as the characteristic products to characterize the insulation status of switchgear is fundamentally explained. The theory foundation is established for monitoring the insulation status of the switchgear by de-tecting the air decomposition components. The air decomposition components:detected in the experiment process are CO and NO2.When the humility keeps unchanged and partial voltage increases from 6 kV to 7.5 kV with 0.5 kV increment,the concentration of CO and NO2 increased with the increase of discharge voltage. On the other hand,keeping the discharge voltage still and adjusting the rela-tive humidity to 50%,70% and 90% respectively,the concentration of CO increased with the increase of humility,and the concentra-tion of NO2 obviously decreased with the increase of humidity. Under a certain voltage and humidity,the concentration of CO shows a linear increasing trend over time,while the increasing rate of NO2 gradually reduces over time and tends to saturate ultimately.关键词
开关柜/局部放电/特征组分/仿真计算/产生途径Key words
switchgear/partial discharge/characteristic components/simulation computation/production pathway分类
信息技术与安全科学引用本文复制引用
陈林聪,张晓星,裘吟君,桂银刚,周磊..空气开关柜局部放电特征分解组分实验与仿真[J].南方电网技术,2016,10(9):69-76,82,9.
