JP2013540334A - 2層分布定数回路を基盤にした炭素接地電極モジュールの長さ算定装置及び方法 - Google Patents
2層分布定数回路を基盤にした炭素接地電極モジュールの長さ算定装置及び方法 Download PDFInfo
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- JP2013540334A JP2013540334A JP2013531513A JP2013531513A JP2013540334A JP 2013540334 A JP2013540334 A JP 2013540334A JP 2013531513 A JP2013531513 A JP 2013531513A JP 2013531513 A JP2013531513 A JP 2013531513A JP 2013540334 A JP2013540334 A JP 2013540334A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/40—Connection to earth
Abstract
上記のような方法及び装置によれば、周波数の変動にも接地インピーダンスの変動の少ない接地電極モジュールを具現することで、雷撃電流などの高周波事故電流に対して安定した性能を有する接地システムを開発することができる。
【選択図】図2
Description
ρ1、ε1は、各々充填材の抵抗率及び比誘電率、
ρ2、ε2は、各々大地の抵抗率及び比誘電率、
ε0、μ0は、各々真空の誘電率と透磁率。
ρ1、ε1は、各々充填材の抵抗率及び比誘電率、
ρ2、ε2は、各々大地の抵抗率及び比誘電率、
ε0、μ0は、各々真空の誘電率と透磁率、
sは、埋設深さ。
d2は、同軸構造炭素接地電極モジュールの外部導体の直径、
ρ2は、大地の抵抗率、
ε2は、大地の比誘電率、
ε0、μ0は各々真空の誘電率と透磁率。
r2は、同軸構造炭素接地電極モジュールの外部導体の半径、
sは、埋設深さ。
d1は、同軸構造炭素接地電極モジュールの内部導体の直径、
ρ1は、同軸構造炭素接地電極モジュールの内部充填材の比抵抗、
ε1は、同軸構造炭素接地電極モジュールの内部充填材の比誘電率、
ε0、μ0は、各々真空の誘電率と透磁率。
r1は、同軸構造炭素接地電極モジュールの内部導体の半径、
sは、埋設深さ。
Claims (10)
- 同軸構造を有し、炭素含有充填材で内部が詰められる接地電極モジュールに対し、周波数の変動によって接地インピーダンスの変動が最も少なく表れる接地電極モジュールの長さ(以下、最適長さ)を求める炭素接地電極モジュールの長さ算定装置であって、
2つの分布定数回路を2層に構成して接地電極回路を構成する回路構成部と、
大地の抵抗率及び比誘電率、充填材の抵抗率及び比誘電率、接地電極モジュールの内部及び外部直径を模擬変数として入力を受ける変数入力部と、
周波数変動範囲内で多数の周波数を選定する周波数選定部と、
選定された各周波数に対し、前記模擬変数によって前記接地電極回路を模擬して、接地電極の長さに対応する接地インピーダンスを計算するシミュレーション部と、
前記各周波数の接地インピーダンスの間の差が最小となる接地電極の長さを求める接地長さ推定部と、
を含むことを特徴とする、炭素接地電極モジュールの長さ算定装置。 - 前記接地電極回路は、大地の抵抗率及び比誘電率を使用した下層分布定数回路と、充填材の抵抗率及び比誘電率を使用した上層分布定数回路から構成された2層分布定数回路であることを特徴とする、請求項1に記載の炭素接地電極モジュールの長さ算定装置。
- 前記2層分布定数回路の単位回路は、π型単位回路を2層に構成し、かつ前記π型単位回路は、コンダクタンス(G)とキャパシタンス(C)の並列回路を両側に構成し、両側の並列回路をインダクタンス(L)回路に連結することを特徴とする、請求項2に記載の炭素接地電極モジュールの長さ算定装置。
- 前記シミュレーション部は、EMTPプログラムを用いて模擬することを特徴とする、請求項1に記載の炭素接地電極モジュールの長さ算定装置。
- 接地長さ推定部は、接地電極モジュールの長さを単位長さ間隔に分けて、各接地電極モジュールの長さに該当する各周波数の接地インピーダンスの最大値と最小値の差(以下、長さ別インピーダンス変動範囲)を求めて、前記長さ別インピーダンス変動範囲が最も小さい接地電極モジュールの長さを接地電極モジュールの最適長さに定めることを特徴とする、請求項1に記載の炭素接地電極モジュールの長さ算定装置。
- 前記接地電極回路は、接地導線(引下げ導線)のインダクタンス回路を前記分布定数回路の前段に直列に追加することを特徴とする、請求項1に記載の炭素接地電極モジュールの長さ算定装置。
- 同軸構造を有し、炭素含有充填材で内部が詰められる接地電極モジュールに対し、周波数の変動によって接地インピーダンスの変動が最も少なく表れる接地電極モジュールの長さ(以下、最適長さ)を求める炭素接地電極モジュールの長さ算定方法であって、
(a)2つの分布定数回路を2層に構成して接地電極回路を構成するステップと、
(b)大地の抵抗率及び比誘電率、充填材の抵抗率及び比誘電率、接地電極モジュールの内部及び外部直径を模擬変数として入力を受けるステップと、
(c)周波数変動範囲内で多数の周波数を選定するステップと、
(d)選定された各周波数に対し、前記模擬変数によって前記接地電極回路を模擬して接地電極の長さに対応する接地インピーダンスを計算するステップと、
(e)前記各周波数の接地インピーダンスの間の差が最小となる接地電極の長さを求めるステップと、
を含むことを特徴とする、炭素接地電極モジュールの長さ算定方法。
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KR1020100098691A KR101114999B1 (ko) | 2010-10-11 | 2010-10-11 | 2층 분포정수회로를 기반으로 한 탄소접지전극모듈의 길이 산정 장치 및 방법 |
KR10-2010-0098691 | 2010-10-11 | ||
PCT/KR2011/007519 WO2012050338A2 (ko) | 2010-10-11 | 2011-10-11 | 2층 분포정수회로를 기반으로 한 탄소접지전극모듈의 길이 산정 장치 및 방법 |
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JP5617041B2 JP5617041B2 (ja) | 2014-10-29 |
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US (1) | US20130197840A1 (ja) |
EP (1) | EP2629372A4 (ja) |
JP (1) | JP5617041B2 (ja) |
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US20140117022A1 (en) * | 2012-10-30 | 2014-05-01 | The Boeing Company | Composite Structures Having Bondlines with Matched Electrical Conductivity |
CN104698340A (zh) * | 2015-02-28 | 2015-06-10 | 武汉大学 | 一种测试铜覆钢接地网设计合理性的方法 |
CN104834819B (zh) * | 2015-05-07 | 2017-07-04 | 河海大学 | 一种确定引外地网最优位置的方法 |
CN112595938B (zh) * | 2020-12-03 | 2023-08-22 | 河南四达电力设备股份有限公司 | 架空输电线路杆塔石墨基柔性接地装置适应性的评估方法 |
CN113094889B (zh) * | 2021-04-01 | 2022-08-12 | 湖南经研电力设计有限公司 | 基于钢筒桩基础的输电线路接地方法 |
CN113219001B (zh) * | 2021-04-28 | 2022-06-17 | 国网天津市电力公司 | 一种基于数值算法的接地选型方法及装置 |
Citations (4)
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JPH0837076A (ja) * | 1994-07-26 | 1996-02-06 | Central Japan Railway Co | 遠制深埋設接地法 |
JP2008066205A (ja) * | 2006-09-09 | 2008-03-21 | Chugoku Electric Power Co Inc:The | 建物の接地方法 |
JP2008166104A (ja) * | 2006-12-28 | 2008-07-17 | Nippon Steel Corp | 接地電極、接地電極群及び雷サージ電圧の低減方法 |
JP2008267930A (ja) * | 2007-04-19 | 2008-11-06 | Hitachi-Ge Nuclear Energy Ltd | 原子力発電所の電線管ルート設計用解析評価システム |
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US3909298A (en) * | 1971-11-18 | 1975-09-30 | Energy Dev Ass | Batteries comprising vented electrodes and method of using same |
KR100249992B1 (ko) * | 1998-02-19 | 2000-03-15 | 김규삼 | 접지시스템 |
KR100561179B1 (ko) * | 2003-10-15 | 2006-03-15 | 주식회사 그라운드 | 접지장치 및 이를 이용한 접지공법 |
US8114541B2 (en) * | 2007-01-16 | 2012-02-14 | Primus Power Corporation | Electrochemical energy generation system |
CN101647138B (zh) * | 2007-03-28 | 2012-11-14 | 红流私人有限公司 | 用于流动电解质电池的电池组 |
KR100875504B1 (ko) | 2008-07-25 | 2008-12-26 | (주)의제전기설비연구원 | 퍼라이트 탄소 접지 모듈 |
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- 2011-10-11 JP JP2013531513A patent/JP5617041B2/ja active Active
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0837076A (ja) * | 1994-07-26 | 1996-02-06 | Central Japan Railway Co | 遠制深埋設接地法 |
JP2008066205A (ja) * | 2006-09-09 | 2008-03-21 | Chugoku Electric Power Co Inc:The | 建物の接地方法 |
JP2008166104A (ja) * | 2006-12-28 | 2008-07-17 | Nippon Steel Corp | 接地電極、接地電極群及び雷サージ電圧の低減方法 |
JP2008267930A (ja) * | 2007-04-19 | 2008-11-06 | Hitachi-Ge Nuclear Energy Ltd | 原子力発電所の電線管ルート設計用解析評価システム |
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JP5617041B2 (ja) | 2014-10-29 |
EP2629372A4 (en) | 2014-11-12 |
US20130197840A1 (en) | 2013-08-01 |
WO2012050338A3 (ko) | 2012-06-07 |
KR101114999B1 (ko) | 2012-03-06 |
EP2629372A2 (en) | 2013-08-21 |
WO2012050338A2 (ko) | 2012-04-19 |
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