2012 International Conference on High Voltage Engineering and Application最新文献_第2页

Multiscale nonlinear dynamic characteristics of leakage current for monitoring polymer insulators in salt-fog conditions 盐雾条件下聚合物绝缘子泄漏电流监测的多尺度非线性动态特性

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI: 10.1109/ICHVE.2012.6357111

Yong Liu, B. Du, Nan Chen, Z. Yin

引用次数: 0

Preparation and basic property of super hydrophobic coating based on semiconductor film 基于半导体薄膜的超疏水涂层的制备及其基本性能

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI: 10.1109/ICHVE.2012.6357139

Yiyu Gong, Jian Li, Xinzhu Yan

引用次数: 0

Prediction of v-t Characteristics of air at different pressures 预测不同压力下空气的v-t特性

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI: 10.1109/ICHVE.2012.6357006

S. Balaji, K. Latha Maheswari, S. Usa

引用次数: 1

Transient equivalent circuit of a horizontal grounding electrode 水平接地电极的瞬态等效电路

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI: 10.1109/ICHVE.2012.6357071

P. Yutthagowith, A. Kunakorn, S. Potivejkul, P. Chaisiri

引用次数: 6

Streamer development mechanism under non-uniform electric field in air 空气中非均匀电场作用下拖缆发展机理

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI: 10.1109/ICHVE.2012.6357036

K. Hotta, H. Kojima, N. Hayakawa, N. Yanagita, T. Kato, T. Rokunohe, H. Okubo

引用次数: 2

MnO2/C core-shell composite as electrode material in supercapacitors 二氧化锰/碳核壳复合材料在超级电容器中的电极应用

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI: 10.1109/ICHVE.2012.6357117

Zhuqing Fan, Jian Li

引用次数: 1

Sensitivity study on streaming electrification of transformer liquids by using rotating disc method 用旋转圆盘法研究变压器液流带电的敏感性

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI: 10.1109/ICHVE.2012.6357094

Z. Liu, Q. Liu, Z. Wang

{"title":"Sensitivity study on streaming electrification of transformer liquids by using rotating disc method","authors":"Z. Liu, Q. Liu, Z. Wang","doi":"10.1109/ICHVE.2012.6357094","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357094","url":null,"abstract":"Insulating liquids used in power transformers with forced liquid cooling systems could lead to the occurrence of streaming electrification phenomenon, which is a potential hazard to the operation of the equipment. In this study, a rotating disc system was built up in the laboratory so as to study the streaming electrification phenomenon occurred at different insulating liquid-pressboard interfaces under various conditions. The procedure for a single measurement was determined first based on the short-time characteristics of the current waveform. Then a 24-hour continuous measurement was carried out to investigate the long-time characteristics. The recorded waveforms indicated that a short-duration measurement is suitable for assessing the streaming electrification behaviour at a liquid-solid interface. The repeatability of measurements of the same sample in successive four days and the sensitivity of measurements to changing pressboard samples were also evaluated. Results indicated that changing pressboard samples leads to a relatively larger variation. The streaming electrification behaviours of a synthetic ester liquid and a mineral oil were compared. Preliminary results indicated that the synthetic ester liquid tends to generate higher streaming currents than the mineral oil.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"67 1","pages":"583-586"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73787936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A statistical aging model for paper oil insulation under repetitive transients 重复瞬变条件下纸油绝缘的统计老化模型

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI: 10.1109/ICHVE.2012.6357013

T. Koltunowicz, Q. Zhuang, D. Djairam, J. Smit

引用次数: 0

The measurement method research for leakage current based on LED optical fiber sensor 基于LED光纤传感器的泄漏电流测量方法研究

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI: 10.1109/ICHVE.2012.6357022

M. Zhang, Da Zhang, C. Yao, Y. Mi, Shoulong Dong

{"title":"The measurement method research for leakage current based on LED optical fiber sensor","authors":"M. Zhang, Da Zhang, C. Yao, Y. Mi, Shoulong Dong","doi":"10.1109/ICHVE.2012.6357022","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357022","url":null,"abstract":"The leakage current is a main characteristic quantity of contamination level of transmission lines insulator surfaces, measuring insulator leakage current is currently the principal means to monitor the contamination level, but because the environment of transmission lines is very complex, electromagnetic interference will must produce much noise at the time of collecting and testing leakage current, sometime we also get the full wave or half cycle, that means some ways to realize selective measurements, to improve the current sensor's abilities of anti-jamming, selectivity and accuracy when the sensors measure insulator leakage current, an optical fiber sensor was employed to measure leakage current of the insulator strings, which used LED as the photoelectric conversion and light signal stability to detect the current. Some tests in lab were operated that results approved that the optical fiber sensor could achieve selective measurement of leakage current waves, the positive half cycle or negative half cycle, and of cause the full cycle current could be monitored after the differential circuit was improved. It had a great degree of linearity fitting, its sensitivity reached 40mV/mA, and their pertinence coefficients of linear fitting are all more than 99.94%. Its frequency response was 1Hz~10 kHz, which can meet the basic requirements of the leakage current measurement.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"134 1","pages":"182-185"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85402173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Field measurement and simulation of electromagnetic interference in 500kV AC system switch operation 500kV交流系统开关运行电磁干扰的现场测量与仿真

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI: 10.1109/ICHVE.2012.6357114

Yao Zhong, Xiaojian Li

引用次数: 0