Improvement of main insulation structure for 110kV electric power transformer based on electric field analysis

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 po...

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Bibliographic Details
Main Authors: Gao Youhua, Gao Dan, Li Yanbin, Gong Shuqiu, Wang Guogang
Format: Conference Proceeding
Language:English
Subjects:
Boundary conditions
Coils
Costs
Dielectrics and electrical insulation
Insulation testing
Manufacturing
Oil insulation
Permittivity
Power transformer insulation
Power transformers
Online Access:Request full text
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Summary: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.