Abstract; A real-time lightning location network started to operate in Indonesia in mid 1995 and ... more Abstract; A real-time lightning location network started to operate in Indonesia in mid 1995 and began providing reliable data in the end of the same year. The network consists of 8 signal receiving stations and works using the Time-Of-Arrival (TOA) technique. Area ...
Abstract—Lightning surge characteristics of a transmission line comprising a tower, a shield wire... more Abstract—Lightning surge characteristics of a transmission line comprising a tower, a shield wire and phase conductors are studied with the help of NEC-2. A tower struck by a lightning stroke behaves as an antenna until a traveling wave makes several roundtrips in the tower. ...
IEEE Transactions on Electromagnetic Compatibility, 2003
Numerical Electromagnetics Code (NEC-2), which is a computer code to analyze the three-dimensiona... more Numerical Electromagnetics Code (NEC-2), which is a computer code to analyze the three-dimensional electromagnetic (EM) field around thin wires in the frequency domain, has been successfully used in lightning-related studies such as lightning surge analyses or lightning EM pulse calculations over a perfectly conducting ground. NEC-2 is still more useful in investigating lightning-induced effects over ground of finite conductivity. This
The national-standard-class measuring system for the impulse voltage measurements in Japan was de... more The national-standard-class measuring system for the impulse voltage measurements in Japan was developed in 1999, and its performance has been evaluated annually supported by Ministry of Economy, Trade and Industry (METI). The system has participated in the worldwide comparison tests and its good performance has been confirmed. The low voltage calibration system which is the part of the standard measuring system was compared among 4 countries in a different series of international comparison tests, and the domestically-evaluated low uncertainty of the Japanese system was proved to be reliable. In this paper, the details and the results of the international comparison tests on low voltage impulse carried out in 2004 and 2005 are reported.
Abstract; A real-time lightning location network started to operate in Indonesia in mid 1995 and ... more Abstract; A real-time lightning location network started to operate in Indonesia in mid 1995 and began providing reliable data in the end of the same year. The network consists of 8 signal receiving stations and works using the Time-Of-Arrival (TOA) technique. Area ...
Abstract—Lightning surge characteristics of a transmission line comprising a tower, a shield wire... more Abstract—Lightning surge characteristics of a transmission line comprising a tower, a shield wire and phase conductors are studied with the help of NEC-2. A tower struck by a lightning stroke behaves as an antenna until a traveling wave makes several roundtrips in the tower. ...
IEEE Transactions on Electromagnetic Compatibility, 2003
Numerical Electromagnetics Code (NEC-2), which is a computer code to analyze the three-dimensiona... more Numerical Electromagnetics Code (NEC-2), which is a computer code to analyze the three-dimensional electromagnetic (EM) field around thin wires in the frequency domain, has been successfully used in lightning-related studies such as lightning surge analyses or lightning EM pulse calculations over a perfectly conducting ground. NEC-2 is still more useful in investigating lightning-induced effects over ground of finite conductivity. This
The national-standard-class measuring system for the impulse voltage measurements in Japan was de... more The national-standard-class measuring system for the impulse voltage measurements in Japan was developed in 1999, and its performance has been evaluated annually supported by Ministry of Economy, Trade and Industry (METI). The system has participated in the worldwide comparison tests and its good performance has been confirmed. The low voltage calibration system which is the part of the standard measuring system was compared among 4 countries in a different series of international comparison tests, and the domestically-evaluated low uncertainty of the Japanese system was proved to be reliable. In this paper, the details and the results of the international comparison tests on low voltage impulse carried out in 2004 and 2005 are reported.
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Papers by Masaru Ishii