2013 Fiscal Year Final Research Report
Fundamental research of the polymer dissolved ultrapure water applied to composite insulation
| Project/Area Number |
25630109
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Nagoya University |
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Principal Investigator |
HANAI Masahiro 名古屋大学, エコトピア科学研究所, 教授 (00587446)
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| Co-Investigator(Kenkyū-buntansha) |
HAYAKAWA Naoki 名古屋大学, エコトピア科学研究所, 教授 (20228555)
OKUBO Hitoshi 愛知工業大学, 工学部電気学科, 教授 (90213660)
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| Co-Investigator(Renkei-kenkyūsha) |
KATO Katsumi 新居浜工業高等専門学校, 電気情報工学科, 准教授 (20293665)
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| Project Period (FY) |
2013-04-01 – 2014-03-31
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| Keywords | 超純水 / 高分子 / 複合絶縁 / 絶縁破壊 / 比誘電率 |
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| Research Abstract |
In ultrapure water of 0.055 micro S / cm, we found that dielectric electric field is nearly constant at 14 kVrms / mm. Dielectric breakdown field of pure water was found to tend to decrease with increasing conductivity. Suppress the increase in conductivity of the water by adding (methylcellulose 25) polymer. Dielectric breakdown field of the water by adding polymer (methylcellulose 25) was substantially the same with ultrapure water. We performed the dielectric breakdown test with a composite insulating structure using a PFA coated electrode. We found that it is necessary to use a coating material having a high breakdown electric field, or it is necessary to use a relatively thick coating material.
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Research Products
(1 results)
