Study on Quality Assessment of Insulators Subjected to DC Voltages

作     者：V. Muralidhara B. Ramachandra N. Vasudev P.V. Vasudevan Nambudiri Sriramulu K.N. Ravi 

作者机构：High Voltage Dvivsion Central Power Research Institute PB No8066 New Bel Road Bangalore 560080 India 

出 版 物：《高电压技术》 (High Voltage Engineering)

年 卷 期：2008年第34卷第12期

页      面：2602-2608页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：直流电压 绝缘子 质量评估 温度 

摘      要：The failure of insulators under DC voltages is due to various factors like thermal runaway,ion migration,anode growth,surface erosion,cement growth etc..However,the rate of failure is higher in polluted zones where surface erosion and puncturing of insulators due to ion migration can ***,insulators have to be subjected to accelerated aging tests to simulate ion migration and to check their capability to withstand the *** runaway is also an important *** carrying out Thermal runaway test at higher temperature,it may be possible to identify the good *** paper presents the work carried out in order to asses the quality of DC insulators by Thermal runaway tests,Ion-migration tests and the measurement of the body resistance of the *** voltage and temperature were varied during these tests in order to clearly identify the good *** result will be useful for the design of insulators for the HVDC transmission system.