Title :
Study on corona-resistance of polyimide-nano inorganic composites
Author :
Peihong, Zhang ; Zhang Weiguo ; Yan, Liu ; Yong, Fan ; Qingquan, Lei
Author_Institution :
Coll. of Electr. & Electron. Eng., Harbin Univ. of Sci. & Technol., China
Abstract :
A testing apparatus for voltage endurance of film materials subjected to partial discharges on its surface was developed according to IEC-343 and ASTM-2275. It consists of electrode unit, power supply unit and control unit, and has the function of testing simultaneously six group samples. The single chip computer is used to time and to switch off the circuit in which the sample is breakdown. The EEPROM is used to record the results. The corona-resistance of polyimide film before and after compound with nano-inorganic oxide is tested and the influence of the component and content on corona-resistance of material is researched. The Cp- ω and tg δ - ω of samples both before and after corona aging are first studied by HP 4294 A and the surface morphology characterized by AFM.
Keywords :
ageing; atomic force microscopy; corona; inorganic polymers; nanocomposites; partial discharges; polymer films; surface morphology; AFM; ASTM-2275; EEPROM; HP 4294 A; IEC-343; SiO2; control unit; corona aging; corona resistance; electrode unit; partial discharge; polyimide film; polyimide nanoinorganic oxide composite; power supply unit; single chip computer; surface morphology; Circuit testing; Electrodes; Materials testing; Partial discharges; Power supplies; Surface discharges; Surface morphology; Switches; Switching circuits; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on
Print_ISBN :
0-7803-7725-7
DOI :
10.1109/ICPADM.2003.1218624
