一种检测聚丙烯薄膜电气强度的方法及装置
By setting a through-hole structure between the upper electrode foil and the mask in the polypropylene film electrical strength testing device, the field strength distortion at the electrode edge is reduced. The breakdown position is recorded by using aluminum foil electrodes and a camera, which solves the problem of poor accuracy and consistency of test data in the prior art and achieves a more accurate electrical strength assessment.
CN116203357BActive Publication Date: 2026-07-17SHENZHEN POWER SUPPLY BUREAU +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN POWER SUPPLY BUREAU
- Filing Date
- 2022-11-04
- Publication Date
- 2026-07-17
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Figure CN116203357B_ABST
Abstract
本发明公开了一种检测聚丙烯薄膜电气强度的方法及装置，属于电气强度检测技术领域，其装置包括试验平台，在试验平台的顶部从下至上依次铺设有下极箔、试验薄膜以及上极箔，试验薄膜的顶部设置有掩膜，掩膜顶部贯穿开设有通孔；其方法包括对上极箔通电，使上极箔在静电力作用下嵌入掩膜通孔，随后继续升压，直至试验薄膜被击穿，记录击穿时电压以及击穿位置。本申请通过在试验薄膜的表面覆盖一层预先开设有通孔的掩膜，使上极箔在通电后在静电力作用下嵌入通孔，上极箔嵌入通孔的部分形成一个近似均匀场强的电极，从而解决了现有技术中电极通电后边缘场强畸变严重从而干扰试验薄膜击穿测试结果的技术问题，有效提高了击穿测试结果的准确性。
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