An investigation of induced voltages to an underground gas pipeline from an overhead transmission line |
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Authors: | Hiroshi Isogai Akihiro Ametani Yuji Hosokawa |
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Affiliation: | 1. Doshisha University, Japan;2. Tokyo Gas Co., Japan |
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Abstract: | This paper investigates induced voltage characteristics from an overhead transmission line by applying a method of modeling of induced voltages proposed by the authors. EMTP simulation results obtained by the modeling method agree with analytical results obtained from a well‐known formula. The induced voltages are significantly dependent on the configuration of the overhead line. A horizontal line induces the largest voltage in a gas pipeline, and the voltage induced by a vertical twin‐circuit line is about 20% smaller than that induced by a vertical single‐circuit line. The method is applied to a real pipeline system and the simulation results show reasonable agreement with field test results. © 2008 Wiley Periodicals, Inc. Electr Eng Jpn, 164(1): 43–51, 2008; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20465 |
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Keywords: | induced voltage gas pipeline overhead line mutual impedance EMTP |
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