| 講演抄録/キーワード |
| 講演名 |
2020-12-04 15:00
Sliding Current Characteristics brought about by Changes in the Silver Content of Silver Graphite Brushes. ○Naoki Fukuda・Ryosuke Kudo・Yuki Saito・Yuki Kawashima・Yusuke Takada・Koichiro Sawa・Takahiro Ueno(NIT) EMD2020-22 |
| 抄録 |
(和) |
(まだ登録されていません) |
| (英) |
Sliding contact is a mechanism for the transfer of electrical current between stationary and moving parts. To date, slip ring systems have mainly been used to provide the excitation mechanism required by turbine generators. However, more diverse systems are now needed in the current clean energy setting. For example, the slip ring systems used in wind power generators must operate at low temperatures. In contrast, automotive alternators operate at high temperatures. Moreover, slip ring systems are also used in applications that require the transmission of electrical signals, such as radar antennae and computed tomography. In such cases, silver (Ag)–graphite brushes and noble metal slip rings are often used, because they are regarded as effective at reducing contact voltage drop, even in harsh environments.
In this study previously, a 20-hour slide experiment to determine the contact voltage drop and amount of wear characteristics of Ag-graphite brushes and silver-gold (Ag-Au) slip rings was reported.
In the present paper, contact voltage drop-brush current (V-I) characteristic tests were conducted using Ag-graphite brushes (Ag content of the coating were 50, 70, and 90 wt%), and noble metal-coated slip rings (plated with silver and gold) to determine the electrical effects of contact voltage drop. The V-I characteristics revealed linearity in all the silver content brushes. |
| キーワード |
(和) |
/ / / / / / / |
| (英) |
Silver Graphite Brush / Noble Coated Slip Ring / V-I Characteristic / φ-θ Theory / Sliding Surface Temperature / / / |
| 文献情報 |
信学技報, vol. 120, no. 275, EMD2020-22, pp. 24-29, 2020年12月. |
| 資料番号 |
EMD2020-22 |
| 発行日 |
2020-11-27 (EMD) |
| ISSN |
Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
EMD2020-22 |
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