Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Tatsuo Kawamura"'
Autor:
Yoshihiko Matsui, Yutaka Goda, Masatoshi Nakajima, Kietsu Kudo, Toshiro Matsumura, Tatsuo Kawamura, Hiromi Ishii, Kunio Kikuchi, Junzo Kida
Publikováno v:
Electrical Engineering in Japan. 197:23-32
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cf948a0411861ab2ad9989ddac62401
https://doi.org/10.1002/eej.22864
https://doi.org/10.1002/eej.22864
Publikováno v:
IEEJ Transactions on Power and Energy. 130:833-838
The application of externally gapped line surge arresters (EGLAs), which have been developed and established in Japan, is now expanding into many countries. Therefore, the maintenance team 4 (MT4) in the international electrotechnical commission (IEC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30946640e63beeb53bc8250e23c24de0
https://doi.org/10.1541/ieejpes.130.833
https://doi.org/10.1541/ieejpes.130.833
Autor:
Y. Matsushita, Masaru Ishii, H. Hirano, T. Nakamura, S. Watahiki, Takayuki Kobayashi, Y. Ozaki, Yoshihiro Ishizaki, K. Tsuge, Shingo Shirakawa, H. Fukumitsu, Y. Kawaguchi, Seisuke Nishimura, Tatsuo Kawamura, Shinji Ishibe, H. Watanabe, Hiroyuki Kado, H. Fukui, M. Kobayashi, Y. Shinohara
Publikováno v:
IEEJ Transactions on Electrical and Electronic Engineering. 5:46-55
It is essential to prove that the technology of metal (zinc) oxide surge arresters born in Japan is very creative, originative, and useful to insulation coordination for power systems. Surge arresters investigating R&D Committee of Japan have summari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8518aa130226a7daeaa48d0f9b215c2e
https://doi.org/10.1002/tee.20492
https://doi.org/10.1002/tee.20492
Publikováno v:
IEEJ Transactions on Power and Energy. 129:809-814
Overshoot magnitude is defined by the difference between the extreme value of the recorded voltage curve and the maximum value of the base curve. And relative overshoot magnitude is defined by the ratio of the overshoot magnitude to the maximum value
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa053eb8a9fbd81c2962416c53d03f90
https://doi.org/10.1541/ieejpes.129.809
https://doi.org/10.1541/ieejpes.129.809
Autor:
Satoshi Matsumoto, Tatsuo Kawamura
Publikováno v:
IEEJ Transactions on Electrical and Electronic Engineering. 4:97-101
As the higher impulse testing voltage, residual inductance of the test circuit or the stray capacitance of the test object increases with size. This means that the overshoot superposed on standard lightning impulse voltage would not be neglected beca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22e08c028b3e0d3c9896f7215cd26392
https://doi.org/10.1002/tee.20381
https://doi.org/10.1002/tee.20381
Publikováno v:
IEEJ Transactions on Electrical and Electronic Engineering. 2:516-522
The Short-circuit Testing Liaison (STL) is the organization that consists of high power testing laboratories of the world. Member laboratories perform short-circuit tests under uniform interpretations of the IEC standards agreed through technical dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6c7404b46684b976ef62927b6d6f26d
https://doi.org/10.1002/tee.20203
https://doi.org/10.1002/tee.20203
Autor:
Tatsuo Kawamura, Tetsuya Nakamoto
Publikováno v:
The Journal of The Institute of Electrical Engineers of Japan. 127:522-525
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfd9c234b6838ea7b164ee7e30a3bf0a
https://doi.org/10.1541/ieejjournal.127.522
https://doi.org/10.1541/ieejjournal.127.522
Publikováno v:
Japanese Journal of Applied Physics. 45:933-939
Some characteristics and statistics of the electromagnetic fields produced by stepped-leaders just before cloud-to-ground lightning return strokes are described. A transient data acquisition system was used together with electric and magnetic field m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::366f7d71f3e28b6583315da14049ab53
https://doi.org/10.1143/jjap.45.933
https://doi.org/10.1143/jjap.45.933
Autor:
Akihiro Ametani, Tatsuo Kawamura
Publikováno v:
IEEE Transactions on Power Delivery. 20:867-875
EMTP has been widely used in Japan to analyze switching and lightning overvoltages to design power stations and substations from the viewpoint of insulation coordination. The Japanese standard of high voltage testing, JEC-0102-1994, and the insulatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80b284d27149c5a8a855d2624a692ab2
https://doi.org/10.1109/tpwrd.2004.839183
https://doi.org/10.1109/tpwrd.2004.839183
Publikováno v:
Japanese Journal of Applied Physics. 42:1568-1574
In this study, we developed a device for monitoring resistive leakage current and a technique for the diagnosis of the deterioration of zinc oxide (ZnO) surge arresters. The resistive leakage current that increases with time results in a thermally un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfb15428bae0ec3909e23466ac1bc8df
https://doi.org/10.1143/jjap.42.1568
https://doi.org/10.1143/jjap.42.1568