Title :
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
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;
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
DOI :
10.1109/ICPADM.2009.5252484
