Insulation structure analysis of high-frequency and high-voltage rectifier transformer

Author

Wang, Yanan ; Huang, Yibin ; Xiao, Dengming ; Qin, Songlin

Author_Institution

Sch. of Electron., Inf. & Electr. Eng., Shanghai Jiaotong Univ., Shanghai, China

fYear

2009

fDate

19-23 July 2009

Firstpage

154

Lastpage

157

Abstract

The rectifier transformer of high-frequency high power-rating switching power supplies has a drawback of low power density due to the rigorous requirements of high voltage insulation. With some tests of a model transformer, the potential distribution of the high power transformers was analyzed and the unfavorable factors affecting their potential distribution were investigated in this paper. Meanwhile, the distribution of the leakage magnetic field of the transformer is also investigated which shows that the insulation distance has a significant impact on leakage. Finally, some improvement measures are proposed based on the results above.

Keywords

high-frequency transformers; magnetic leakage; potential transformers; power transformer insulation; rectifying circuits; high power-rating switching power supplies; high voltage insulation; high-frequency rectifier transformer; high-voltage rectifier transformer; insulation structure analysis; low power density; magnetic field leakage distribution; Circuit faults; Magnetic cores; Magnetic flux; Oil insulation; Power transformer insulation; Power transformers; Rectifiers; Saturation magnetization; Topology; Transformer cores; high-frequency; high-voltage; insulation structure; power density; transformer;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2009. ICPADM 2009. IEEE 9th International Conference on the

Conference_Location

Harbin

Print_ISBN

978-1-4244-4367-3

Electronic_ISBN

978-1-4244-4368-0

Type

conf

DOI

10.1109/ICPADM.2009.5252484

Filename

5252484