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Residual DC charge leakage mechanism of a transmission line under fine and dry weather conditions.

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Title: Residual DC charge leakage mechanism of a transmission line under fine and dry weather conditions.
Authors: Murase, Hiroshi1, Yoda, Masayuki1, Sawa, Goro1, Kaneko, Eiji2
Source: Electrical Engineering in Japan. Nov2008, Vol. 165 Issue 2, p45-52. 8p. 4 Diagrams, 8 Graphs.
Subjects: Electric charge, Electricity experiments, Electrical engineering, Humidity, Weather, Electric lines
Abstract: The decay time of residual DC charge in 500-kV transmission line was measured during five fine and dry days of winter. The results showed a large scattering not dependent on the simultaneously observed weather conditions, such as temperature or relative humidity. The authors performed an additional experiment in a laboratory to discuss the factors that affect the residual DC charge leakage in dry conditions focusing on the moisture in the air and the dust floating in the atmosphere. It is shown that absolute humidity alone decides the decay time without scattering under clean and calm condition. The floating dust blown up by the wind, however, reduces the decay time and brings a large scattering. The dust should be a charge carrier moving freely in the atmosphere. © 2008 Wiley Periodicals, Inc. Electr Eng Jpn, 165(2): 45–52, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20417 [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:The decay time of residual DC charge in 500-kV transmission line was measured during five fine and dry days of winter. The results showed a large scattering not dependent on the simultaneously observed weather conditions, such as temperature or relative humidity. The authors performed an additional experiment in a laboratory to discuss the factors that affect the residual DC charge leakage in dry conditions focusing on the moisture in the air and the dust floating in the atmosphere. It is shown that absolute humidity alone decides the decay time without scattering under clean and calm condition. The floating dust blown up by the wind, however, reduces the decay time and brings a large scattering. The dust should be a charge carrier moving freely in the atmosphere. © 2008 Wiley Periodicals, Inc. Electr Eng Jpn, 165(2): 45–52, 2008; Published online in Wiley InterScience (<URL>www.interscience.wiley.com</URL>). DOI 10.1002/eej.20417 [ABSTRACT FROM AUTHOR]
ISSN:04247760
DOI:10.1002/eej.20417