1997 Fiscal Year Final Research Report Summary
Research on Diagnosis of Dielectric Material due to Partial Discharge by Multi Discharge Detection Method
| Project/Area Number |
08650348
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
電力工学・電気機器工学
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| Research Institution | Mushashi Institute of Technology |
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Principal Investigator |
ITO Tairo Musashi Institute of Technology, Fac.of Eng., Professor, 工学部, 教授 (80061505)
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| Co-Investigator(Kenkyū-buntansha) |
KISHIDA Haruo Musashi Institute of Technology, Fac.of Eng.Lecturer, 工学部, 講師 (40061527)
YUMOTO Motoshige Musashi Institute of Technology, Fac.of Eng.Professor, 工学部, 教授 (10120867)
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| Project Period (FY) |
1996 – 1997
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| Keywords | tree / diagnostic / discharge magnitude / dcterioration / prediction of breakdown / partial discharge |
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| Research Abstract |
The Partial discharge measuring system were constructed for analyzing treeing phenomena. The discharge magnitude and discharge luminescence were measured at same time. The experimental results as follows.
(1) The discharge magnitude were proportioned to the luminous quantity.
(2) The discharge magnitude and the luminous quantity are the maximum value at phase angle area of phi_7 (40ﾟ) and phi_<17> (220ﾟ).
(3) The tree propagation speed was more accelerated by the discharges at phi_7 and phi_<17> system.
(4) The discharge magnitude correlate closely the effective instantaneous voltage value multiply dv/dt.
(5) The discharge luminescence was observed at void at phi_3, phi_4, phi_5.
(6) The discharge path by single discharge were observed at single tree channel or multi tree channels.
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