绝缘子及套管篇电子教案.ppt

XJTUEE绝缘子及套管篇 Still waters run deep.流静水深流静水深,人静心深人静心深 Where there is life,there is hope。有生命必有希望。有生命必有希望XJTUEEXJTUEE550kV变压器套管变压器套管XJTUEEXJTUEE复合绝缘故障统计复合绝缘子引起闪络故障 XJTUEEXJTUEEXJTUEE支持瓷瓶支持瓷瓶 兰州供电局测试组兰州供电局测试组XJTUEE变压器变压器套管套管(户县电厂户县电厂)XJTUEE变压器变压器套管套管 假油位假油位西安南郊变2006.6.23 仪器：P65兰州宣家沟变XJTUEE紫外线成像紫外线成像通过观察设备的“电晕”及“电气放电”“电弧”来判断设备的故障所在位置断股，污染，裂纹等现象与红外互补XJTUEE紫外成像紫外成像工作原理工作原理所有的电晕及放电现象都会产生不同份量、比例的：可见光 比例非常小紫外光 -太阳盲区外 -太阳盲区内XJTUEE紫外成像紫外成像太阳盲区检测技术太阳盲区检测技术太阳盲区：指紫外光(UV)波段内一狭窄的、特定的光谱段(240 280nm)。一般认为此段内由太阳传来的紫外光份量极低，绝大部分被臭氧层吸收。紫外线成像仪就是采用了对于太阳盲区内紫外光极其敏感的紫外线探测器及吸收太阳盲区外紫外光的UV滤片，集中检测盲区内的紫外光,也就是所谓的太阳盲区检测技术。紫紫外外光光紫外图像信号紫外图像信号UV滤片滤片紫外线探测器紫外线探测器XJTUEE紫外成像紫外成像双光谱双光谱在白天、日光下检测 紫外光的放射现象太阳盲区滤片太阳盲区滤片+紫外光探测器紫外光探测器 检测电晕及电气放电检测电晕及电气放电用可见光图像用可见光图像 显示被测物体的实物形状显示被测物体的实物形状光源光源紫外图像紫外图像可见光图像可见光图像图像重叠图像重叠双光谱图像双光谱图像XJTUEE紫外成像紫外成像污染、破损绝缘子污染、破损绝缘子XJTUEE用紫外法监测带电水冲洗用紫外法监测带电水冲洗XJTUEEXJTUEEPollution Monitoring Interim SolutionPollution Severity Test Swab TestMeasurement of Non-soluble Material Deposit Density(NSDD)XJTUEEAn on-line disc surface condition monitoring system applied on 400kV overhead line system.A self-sustained solar power with battery supply system.Electric current flowing along the surface of the disc,temperature and relative humidity are measured periodically.Data acquisition and control by means of wireless modem.Current and trend analysis on disc pollution condition.Disc Pollution Supervisory SystemXJTUEEDisc pollution supervisory system set-upprimaryprotectionunitDisc Pollution Supervisory SystemData acquisition unitXJTUEESurface Hydrophobicity On-line Monitoring of Composite Insulator XJTUEEElectro-Controlled On-line WaterworksInfrared signal transmitting moduleInsulation action barInfrared signal-receiving&electric pump control moduleWater jet pumpXJTUEESoftware IdentificationXJTUEE110kV JiXie Line 54#Tower,Henan（HC5-6）