Title :
Improvement of main insulation structure for 110kV electric power transformer based on electric field analysis
Author :
Youhua, Gao ; Dan, Gao ; Yanbin, Li ; Shuqiu, Gong ; Guogang, Wang
Author_Institution :
Sch. of Electr. Eng., Shenyang Univ. of Technol., Shenyang
Abstract :
Main insulation structure for 110 kV electric power transformer is improved based on electric field Analysis. FEM is introduced to calculate the electric filed of primary and improved main insulation structure. The electric field distribution is shown, and maximum electric field intensity and its position are given. The advantage for improved main insulation structure is obtained from the cost comparison between primary and improved main insulation structure of transformer. The validity of main insulation structure has been proved by insulation test to electric power transformer.
Keywords :
finite element analysis; insulation testing; power transformer insulation; FEM; electric field distribution; electric field intensity; electric power transformer; insulation test; voltage 110 kV; Boundary conditions; Coils; Costs; Dielectrics and electrical insulation; Insulation testing; Manufacturing; Oil insulation; Permittivity; Power transformer insulation; Power transformers;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
