1 0 0 0 OA ヒステリシスループによる鉄損の測定法
- 著者
- 岡田 粂ニ
- 出版者
- 富山大学工学部
- 雑誌
- 富山大学工学部紀要 (ISSN:03871339)
- 巻号頁・発行日
- vol.21, pp.1-9, 1970-03
The hysteresis loops are drawn by using the sampling converter and X-Y recorder,and the iron losses are measured from their areas. The author drew the several hysteresis loops as regards of the several kinds of frequency,and measured the iron losses of them from their areas. Using the results,the author attempted to separate the hysteresis losses and eddy current losses from the above-mentioned iron losses. On the other hand,the hysteresis loops are drawn by using the synchronizing switch method under the same condition as the above-mentioned experiments,and are compared with the results of above-mentioned experimental results. In these experiments,the areas of hysteresis loops are measured by planimeter,and as material the silicon steel plate (JIS-SIOF,1.918kg) is used.
1 0 0 0 OA SCRを用いたインバータについて
- 著者
- 森 光三 岡田 粂ニ
- 出版者
- 富山大学工学部
- 雑誌
- 富山大学工学部紀要 (ISSN:03871339)
- 巻号頁・発行日
- vol.16, no.1/2, pp.1-4, 1965-03
The mechanism of the inverter commutation is studied. The circuit is composed of two resistances instead of a transformer. Gate voltage is 2 V, and gate current 3 mA. Capacity of the commutation condenser is 20μF. The voltage of the commutation condenser is calculated and it is shown that the anode voltage of SCR becomes negative, then it cuts the anode current of SCR. When we use as a inverter, a transformer is used instead of two resistances. The transformer has three windings whose number of tums is 300 respectively. The range of the output altemating current is 0--4 A, and the maximum efficiency of the inverter, which converts DC energy to AC energy, reaches 75%. The range of the frequency of AC could bechanged from 20 to 300 c/s in our experiments.