1.2 MV脉冲变压器设计及实验研究
Design and experimental research on 1.2 MV pulse transformer
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摘要: 介绍了1.2 MV脉冲变压器的设计方法，采用螺旋渐开式绕组逐渐增大绕组对磁芯的绝缘距离，用ANSYS程序模拟脉冲变压器中的场强分布情况，最大场强不超过18 kV/mm。通过实验研究有效解决了绕组对绝缘支撑的局部放电现象，得到了1.2 MV的高压脉冲输出，单次运行时间达到1 min，重复频率100 Hz，验证了所采用的设计方法的可行性。Abstract: This paper summarized the design method of a 1.2 MV pulse transformer, which adopted the helix-involute winding to enlarge the isolation distance between the winding and the magnetic core. The numerical simulation of ANSYS showed that the maximum electric field was less than 18 kV/mm in this transformer. The local-discharge phenomena of the winding to the insulator were solved through experimental research. The derived pulse transformer could meet the following design specifications:1.2 MV output voltage, 100 Hz repetition frequency and 1 min single runtime.
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Key words:
- pulse transformer /
- helix-involute winding /
- local-discharge /
- repetition frequency
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