Title :
Assessment of degradation of transformer insulation paper by SEM and X-RD techniques
Author :
Verma, P. ; Roy, M. ; Verma, A. ; Bhanot, V. ; Pandey, O.P.
Author_Institution :
Thapar Inst. of Eng. & Technol., Patiala, India
Abstract :
Cellulose paper used as insulating material in transformer degrades under thermal and electrical stresses. In order to understand the cause of degradation, paper was exposed to varied thermal and electrical stresses in an indigenously designed and fabricated test cell for different duration. The present paper describes different structural features of these aged papers.
Keywords :
X-ray diffraction; ageing; crystal microstructure; insulation testing; paper; scanning electron microscopy; thermal insulating materials; thermal stresses; transformer insulation; SEM; XRD; ageing; cellulose paper; electrical stresses; insulating material; insulation testing; test cell; thermal stresses; transformer degradation; transformer insulation paper; Aging; Dielectrics and electrical insulation; Oil insulation; Petroleum; Polymers; Power transformer insulation; Temperature; Testing; Thermal degradation; Thermal stresses;
Conference_Titel :
Solid Dielectrics, 2004. ICSD 2004. Proceedings of the 2004 IEEE International Conference on
Print_ISBN :
0-7803-8348-6
DOI :
10.1109/ICSD.2004.1350516
