Electrical Treeing Breakdown Properties for Polyimide Nanocomposite Film in Inverter-Fed Motors
Paper
Paper/Presentation Title | Electrical Treeing Breakdown Properties for Polyimide Nanocomposite Film in Inverter-Fed Motors |
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Presentation Type | Paper |
Authors | Cui, Yi (Author), Wu, Guangning (Author), Zhang, Yiqiang (Author) and Luo, Yang (Author) |
Journal or Proceedings Title | Advanced Materials Research |
Journal Citation | 455-456, pp. 553-558 |
Number of Pages | 6 |
Year | 2012 |
Place of Publication | Switzerland |
ISSN | 1022-6680 |
1662-8985 | |
ISBN | 9783037853009 |
Digital Object Identifier (DOI) | https://doi.org/10.4028/www.scientific.net/AMR.455-456.553 |
Web Address (URL) of Paper | https://www.scientific.net/AMR.455-456.553 |
Web Address (URL) of Conference Proceedings | https://www.scientific.net/AMR.455-456 |
Conference/Event | 2011 SSITE International Conference on Future Material Research and Industry Application (FMRIA 2011) |
Event Details | 2011 SSITE International Conference on Future Material Research and Industry Application (FMRIA 2011) Delivery In person Event Date 01 to end of 02 Dec 2011 Event Location Macau, China |
Abstract | The failure of magnet wires used in inter-turn insulation of inverter-fed motor winding is the main cause which leads to the motor insulation breakdown. This paper conducted electrical tree breakdown experiments on magnet wire insulating film (FCR 100) used in the inter-turn insulation of JD117 inverter-fed motor and meanwhile combining with energy spectrum analysis and scanning electrical microscope (SEM), by which type and content of elements, breakdown main body and electrical tree channel could be clearly observed, the corresponding failure mechanisms were analyzed. The experiment results reveal that all the breakdown main bodies are located at the pointedness and insulation joint of magnet wires, of which dielectric strength is relatively lower; they are the insulation 'weak point', which should be paid enough attention and strengthened at the manufacturing period. The electrical tree breakdown time is quite long and the life span of magnet wire is 11 hours. The electrical breakdown strength of envelope is very low when containing metal impurity. It is also found that the aluminum occupies the highest content tested by energy spectrum analysis. |
Keywords | Breakdown; Electrical tree; Inverter-fed motor; Magnet wire |
ANZSRC Field of Research 2020 | 400803. Electrical energy generation (incl. renewables, excl. photovoltaics) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Southwest Jiaotong University, China |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7w5y/electrical-treeing-breakdown-properties-for-polyimide-nanocomposite-film-in-inverter-fed-motors
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