2007 IEEE Conference on the History of Electric Power最新文献

Weston was the icon of meters in Japan 韦斯顿是日本米的象征

2007 IEEE Conference on the History of Electric Power Pub Date : 2007-01-22 DOI: 10.1109/HEP.2007.4510264

E. Matsumoto

{"title":"Weston was the icon of meters in Japan","authors":"E. Matsumoto","doi":"10.1109/HEP.2007.4510264","DOIUrl":"https://doi.org/10.1109/HEP.2007.4510264","url":null,"abstract":"Weston Electrical Instrument Corporation was founded in 1888 and began to manufacture portable direct-current meters. At that time, the electricity power industry emerged in Japan, and in 1888, the Institute of Electrical Engineers of Japan (IEEJ) was also established. Many Weston meters were imported to Japan and used by government institutions and universities. Japanese meter manufacturers were established around 1900 and began to manufacture meters similar to Weston's meters. It took a while for them to become able to make meters that were comparable to Weston's. On the other hand, it took a long time for Japanese users to acknowledge that the performance of domestic meters achieved the level of Weston's. In other words, Weston's meters were the icon of meters for Japanese users and maintained their superiority status for a long time in Japan. The following meters were Weston's specialties: 1) Laboratory Standard Instrument (accuracy of 0.1%) 2) Portable Precision Instrument (accuracy of 0.25%) 3) Photographic Exposure Meter. Weston's superiority status in Japan continued until around 1950, after World War II. The arrival of digital instruments, however, changed the situation radically. Although the company had excellent patents, such as one for the dual-slope A/D converter, Weston Corporation passed on the opportunity to survive the competition in the meter industry.","PeriodicalId":202728,"journal":{"name":"2007 IEEE Conference on the History of Electric Power","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116965824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Underground secondary AC networks, a brief history 地下二级交流网络，简史

2007 IEEE Conference on the History of Electric Power Pub Date : 2007-01-22 DOI: 10.1109/HEP.2007.4510262

R. Landman

{"title":"Underground secondary AC networks, a brief history","authors":"R. Landman","doi":"10.1109/HEP.2007.4510262","DOIUrl":"https://doi.org/10.1109/HEP.2007.4510262","url":null,"abstract":"The first low-voltage AC network system is reported to have been installed in Memphis, Tennessee, c. 1907. The network transformers were supplied by primary feeders through distribution cutouts and were connected to a solid grid of low voltage cables that were protected with fuses. In 1921, improvements were made to the basic system in Seattle, Washington by Puget Sound Power & Light Co. This involved connecting the secondary terminals of the network transformers to the solid cable grid through network protectors. These protectors would trip automatically upon reverse power flow and were reset manually. In 1922, the first AC network system, in which network protectors were automatically tripped and closed by relays, was placed in service in New York City by the United Electric Light and Power Company. The cable grid was a three-phase/four- wire system which operated at a nominal voltage of 208Y/120V. By 1925, this type of system became an accepted method of supplying combined power and lighting load and there were six networks with a total load of 27.5MVA (over 100 transformers) in operation. By 1952, 82 companies operated 414 networks using this system. In 1974, 315 US companies had installed the low-voltage network system. Today's 208Y/120V network grid systems are very similar in configuration and basic operation to the first systems.","PeriodicalId":202728,"journal":{"name":"2007 IEEE Conference on the History of Electric Power","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121060697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Understanding the history of fuel cells 了解燃料电池的历史

2007 IEEE Conference on the History of Electric Power Pub Date : 2007-01-22 DOI: 10.1109/HEP.2007.4510259

E. Ortiz-Rivera, A. Reyes-Hernández, R. Febo

引用次数: 29

The power innovation process: Electric technology effects on policy and electricity policy effects on technology 电力创新过程:电力技术对政策的影响和电力政策对技术的影响

2007 IEEE Conference on the History of Electric Power Pub Date : 2007-01-22 DOI: 10.1109/HEP.2007.4510260

W. Hederman

引用次数: 1

“Electric power in Nepal: History, experiences & possibilities.” 尼泊尔的电力:历史、经验和可能性。

2007 IEEE Conference on the History of Electric Power Pub Date : 2007-01-22 DOI: 10.1109/HEP.2007.4510261

M. R. Kafle

引用次数: 2

Early history of Korean electric light and power development 韩国电灯和电力发展的早期历史

2007 IEEE Conference on the History of Electric Power Pub Date : 2007-01-22 DOI: 10.1109/HEP.2007.4510266

M. Nam

引用次数: 2

History of power systems development in Japan 日本电力系统发展史

2007 IEEE Conference on the History of Electric Power Pub Date : 2007-01-22 DOI: 10.1109/HEP.2007.4510255

A. Fumio

{"title":"History of power systems development in Japan","authors":"A. Fumio","doi":"10.1109/HEP.2007.4510255","DOIUrl":"https://doi.org/10.1109/HEP.2007.4510255","url":null,"abstract":"There are similarities and differences between the study of history in general and that of the history of engineering in particular. Since the study of engineering seeks for the practical use, the productivity of the study will be essentially estimated, if it will meet with the need of human life and society, just like \"Innovation,\" for instance, will be. This paper tries to find some keys for the successful innovation through the history of engineering. It suggests what can be called as \"The Repeat Model.\" Taking the case of power systems engineering development in Japan, the author finds in the Model the repetition of such sub-stages as \"introduction,\" \"application,\" \"innovation\" and \"turbulence\" in each stage of history. Since power system planning is one of essential know-how in power systems engineering, it will be critically important to improve the know-how through the use of \"The Repeat Model\" for the welfare of society in the future under such condition as human needs, deregulation and social contradiction. The author also discusses that the study of history is important and effective to establish public literacy and ethics on engineering and to develop the engineering in the right direction for the welfare of society.","PeriodicalId":202728,"journal":{"name":"2007 IEEE Conference on the History of Electric Power","volume":"93 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127980373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

History of electric power in India (1890 – 1990) 印度电力历史(1890 - 1990)

2007 IEEE Conference on the History of Electric Power Pub Date : 2007-01-22 DOI: 10.1109/HEP.2007.4510263

S. Madan, S. Manimuthu, S. Thiruvengadam

引用次数: 4

Fiftieth anniversary of modern power electronics: The Silicon Controlled Rectifier 现代电力电子学五十周年纪念:可控硅整流器

2007 IEEE Conference on the History of Electric Power Pub Date : 2007-01-22 DOI: 10.1109/HEP.2007.4510267

E. Owen

引用次数: 5

The slot in the road: Manhattan's forgotten underground electric trolley system 道路上的缝隙:曼哈顿被遗忘的地下电车系统

2007 IEEE Conference on the History of Electric Power Pub Date : 2007-01-22 DOI: 10.1109/HEP.2007.4530742

G. Cooke

引用次数: 1