高电压技术2008，Vol.34Issue(11)：2305-2310,6.
Two Types of Compact UHF Antennas for Partial Discharge Measurement
摘要
Abstract
To investigate the partial discharge (PD) online monitoring of transformers by ultra-high-frequency (UHF) approaches, high-qualified UHF antennas are focused on as one key technique. The size of UHF sensor used for PD UHF online monitoring in transformer is excessively large, therefore, it is not convenient for internal installation of transformer. Two types of compact UHF antennas with small sizes, a Hilbert fractal antenna and a small loop antenna are presented. PD experiments of three typically artificial insulation defects are executed and both antennas are used for PD measurement. The spectra of power via frequency of detected PD signals are analyzed and compared. The experimental results show that the Hilbert fractal antenna and small loop antenna are qualified for PD online UHF monitoring.关键词
transformer/partial discharge/ultra-high-frequency/online monitoring/fractal antenna/small loop an-tenna/artificial insulation defectsKey words
transformer/partial discharge/ultra-high-frequency/online monitoring/fractal antenna/small loop an-tenna/artificial insulation defects分类
信息技术与安全科学引用本文复制引用
JIN Zhuo-rui,SUN Cai-xin,CHENG Chang-kui,LI Jian..Two Types of Compact UHF Antennas for Partial Discharge Measurement[J].高电压技术,2008,34(11):2305-2310,6.基金项目
Project Supported by New Century ExcellentTalents of the Ministry of Education (NCET-06-0763), the Founda-tion of the Key Project of the Science and Technology Department in Chongqing (CSTC2005AA6003). （NCET-06-0763）
