Title :
Thermal aging behavior of the oil-impregnated paper at 160°C
Author :
Dianchun, Zheng ; Baomin, Lu ; Li, Yuan ; Dianwang, Zheng
Author_Institution :
Harbin Univ. of Sci. & Technol., China
Abstract :
The load change of locomotive transformer used in the electric rail road is not smooth and regular. Its overload coefficient is also changeable, sometimes might be either zero or up to 3.0. The situation could cause the partial temperature rising in the transformer, extremely, the temperature, in short time, can be higher than 140°C, even might reach 160°C. It brings about new problems to the insulation of the transformer. Despite of having enough experience standard in the IEC which has been admitting, yet the thermal aging behavior of higher than 140°C about oil-impregnated paper has not substantial experiment law to be abided by the designer and manufacturer. In this paper, some information is published about thermal aging characteristic of the oil-impregnated paper at 160°C
Keywords :
ageing; composite insulating materials; paper; transformer oil; 160 C; electric rail road; locomotive transformer; oil-impregnated paper; overload coefficient; thermal aging; Aging; Containers; IEC standards; Oil insulation; Optical fiber devices; Petroleum; Power transformer insulation; Power transformers; Temperature; Testing;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-2651-2
DOI :
10.1109/ICPADM.1997.617576
