IEICE TRANSACTIONS on Communications
Reduction of the Induction Field on Overhead Transmission Lines Caused by Resonance with an MF Broadcast Wave by Using the Method of Selecting Grounding Points
Summary :
A new method is proposed in this paper for reducing the MF broadcast wave induction field on overhead power transmission lines during maintenance and inspection work of the line. Power transmission usually has to be stopped in the circuit being worked on, and the conductors are grounded to the steel towers at both ends of the worked section of the line to prevent electric shocks that may be caused by the commercial frequency induction field induced by the current running through the transmission circuit. In these situations, a very strong RF induction field is sometimes observed in the circuit undergoing maintenance work when a high power MF broadcast antenna is located near the transmission line. It has been found that this strong RF induction is caused by the resonance of one or two wavelengths in the closed loop circuit consisting of the conductors and the steel towers (including the ground), and that the strong induction due to the MF field can be avoided by inserting induction coils of appropriate values between the conductors and the steel towers. In this paper, a simple alternative method for reducing the MF induction field by carefully selecting appropriate towers for the grounding is proposed. In this method, the two towers to be grounded are chosen from among the four towers adjacent to the towers that are being worked on. By selecting the correct two towers to be grounded we can ensure that the resonance frequency does not correspond with the frequency of the broadcast wave, and we demonstrate that the RF induction field can be considerably reduced.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E86-B No.9 pp.2745-2752
- Publication Date
- 2003/09/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Electromagnetic Compatibility(EMC)
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Takayuki SASAMORI, Teruo TOBANA, Kohshi ABE, Kunio SAWAYA, Saburo ADACHI, Kohji ARITA, "Reduction of the Induction Field on Overhead Transmission Lines Caused by Resonance with an MF Broadcast Wave by Using the Method of Selecting Grounding Points" in IEICE TRANSACTIONS on Communications,
vol. E86-B, no. 9, pp. 2745-2752, September 2003, doi: .
Abstract: A new method is proposed in this paper for reducing the MF broadcast wave induction field on overhead power transmission lines during maintenance and inspection work of the line. Power transmission usually has to be stopped in the circuit being worked on, and the conductors are grounded to the steel towers at both ends of the worked section of the line to prevent electric shocks that may be caused by the commercial frequency induction field induced by the current running through the transmission circuit. In these situations, a very strong RF induction field is sometimes observed in the circuit undergoing maintenance work when a high power MF broadcast antenna is located near the transmission line. It has been found that this strong RF induction is caused by the resonance of one or two wavelengths in the closed loop circuit consisting of the conductors and the steel towers (including the ground), and that the strong induction due to the MF field can be avoided by inserting induction coils of appropriate values between the conductors and the steel towers. In this paper, a simple alternative method for reducing the MF induction field by carefully selecting appropriate towers for the grounding is proposed. In this method, the two towers to be grounded are chosen from among the four towers adjacent to the towers that are being worked on. By selecting the correct two towers to be grounded we can ensure that the resonance frequency does not correspond with the frequency of the broadcast wave, and we demonstrate that the RF induction field can be considerably reduced.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e86-b_9_2745/_p
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@ARTICLE{e86-b_9_2745,
author={Takayuki SASAMORI, Teruo TOBANA, Kohshi ABE, Kunio SAWAYA, Saburo ADACHI, Kohji ARITA, },
journal={IEICE TRANSACTIONS on Communications},
title={Reduction of the Induction Field on Overhead Transmission Lines Caused by Resonance with an MF Broadcast Wave by Using the Method of Selecting Grounding Points},
year={2003},
volume={E86-B},
number={9},
pages={2745-2752},
abstract={A new method is proposed in this paper for reducing the MF broadcast wave induction field on overhead power transmission lines during maintenance and inspection work of the line. Power transmission usually has to be stopped in the circuit being worked on, and the conductors are grounded to the steel towers at both ends of the worked section of the line to prevent electric shocks that may be caused by the commercial frequency induction field induced by the current running through the transmission circuit. In these situations, a very strong RF induction field is sometimes observed in the circuit undergoing maintenance work when a high power MF broadcast antenna is located near the transmission line. It has been found that this strong RF induction is caused by the resonance of one or two wavelengths in the closed loop circuit consisting of the conductors and the steel towers (including the ground), and that the strong induction due to the MF field can be avoided by inserting induction coils of appropriate values between the conductors and the steel towers. In this paper, a simple alternative method for reducing the MF induction field by carefully selecting appropriate towers for the grounding is proposed. In this method, the two towers to be grounded are chosen from among the four towers adjacent to the towers that are being worked on. By selecting the correct two towers to be grounded we can ensure that the resonance frequency does not correspond with the frequency of the broadcast wave, and we demonstrate that the RF induction field can be considerably reduced.},
keywords={},
doi={},
ISSN={},
month={September},}
Copy
TY - JOUR
TI - Reduction of the Induction Field on Overhead Transmission Lines Caused by Resonance with an MF Broadcast Wave by Using the Method of Selecting Grounding Points
T2 - IEICE TRANSACTIONS on Communications
SP - 2745
EP - 2752
AU - Takayuki SASAMORI
AU - Teruo TOBANA
AU - Kohshi ABE
AU - Kunio SAWAYA
AU - Saburo ADACHI
AU - Kohji ARITA
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E86-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2003
AB - A new method is proposed in this paper for reducing the MF broadcast wave induction field on overhead power transmission lines during maintenance and inspection work of the line. Power transmission usually has to be stopped in the circuit being worked on, and the conductors are grounded to the steel towers at both ends of the worked section of the line to prevent electric shocks that may be caused by the commercial frequency induction field induced by the current running through the transmission circuit. In these situations, a very strong RF induction field is sometimes observed in the circuit undergoing maintenance work when a high power MF broadcast antenna is located near the transmission line. It has been found that this strong RF induction is caused by the resonance of one or two wavelengths in the closed loop circuit consisting of the conductors and the steel towers (including the ground), and that the strong induction due to the MF field can be avoided by inserting induction coils of appropriate values between the conductors and the steel towers. In this paper, a simple alternative method for reducing the MF induction field by carefully selecting appropriate towers for the grounding is proposed. In this method, the two towers to be grounded are chosen from among the four towers adjacent to the towers that are being worked on. By selecting the correct two towers to be grounded we can ensure that the resonance frequency does not correspond with the frequency of the broadcast wave, and we demonstrate that the RF induction field can be considerably reduced.
ER -
English
