JP4842275B2 - 電流測定のための検出回路 - Google Patents
電流測定のための検出回路 Download PDFInfo
- Publication number
- JP4842275B2 JP4842275B2 JP2007539458A JP2007539458A JP4842275B2 JP 4842275 B2 JP4842275 B2 JP 4842275B2 JP 2007539458 A JP2007539458 A JP 2007539458A JP 2007539458 A JP2007539458 A JP 2007539458A JP 4842275 B2 JP4842275 B2 JP 4842275B2
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- current
- auxiliary
- detection circuit
- main
- current transformer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
- G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
- Transformers For Measuring Instruments (AREA)
Description
2 補助変流器
3 補助変流器
Claims (3)
- 主変流器(1)および2個の同一の補助変流器(2、3)を含む電流測定のための検出回路において、主電流(I1)は、前記主変流器(1)の中で起磁力を誘起し、前記起磁力は、補償電流(i1)によって誘起された起磁力によって打ち消され、一方、2個の補助変流器(2、3)は、同時に変調信号により逆位相に磁化され、前記回路は、補償電流(i1)のための調整信号を発生させるための同期整流器を含む検出回路であって、
補償電流は、補助変流器(2、3)と同様に主変流器を囲む共通巻線(L3)の電流を測定するために使用され、一方、同時に、補助変流器(2、3)の間に発生する可能性のある誤差信号が、補償電流(i 1 )を調整するために使用され、また負帰還ループが備えられ、前記負帰還ループは、自動的に定常状態を達成しようとし、前記検出回路は、さらに、帰還ループの手段により交流電圧を補償できる、交流電圧を検出するための追加巻線(L5)を有することを特徴とする検出回路。 - 前記誤差信号は、補助変流器(2、3)の間に発生する可能性のある電圧差であることを特徴とする、請求項1に記載の検出回路。
- 前記主変流器(1)は、補助変流器(2、3)に隣接して配置されていることを特徴とする、請求項1または2に記載の検出回路。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA200401704 | 2004-11-05 | ||
DKPA200401704 | 2004-11-05 | ||
PCT/DK2005/000705 WO2006048020A1 (en) | 2004-11-05 | 2005-11-04 | Detector circuit for measuring current |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008519269A JP2008519269A (ja) | 2008-06-05 |
JP4842275B2 true JP4842275B2 (ja) | 2011-12-21 |
Family
ID=35423319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007539458A Active JP4842275B2 (ja) | 2004-11-05 | 2005-11-04 | 電流測定のための検出回路 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7667452B2 (ja) |
EP (1) | EP1807707B1 (ja) |
JP (1) | JP4842275B2 (ja) |
CN (1) | CN100520417C (ja) |
AT (1) | ATE482402T1 (ja) |
DE (1) | DE602005023760D1 (ja) |
WO (1) | WO2006048020A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106610442A (zh) * | 2015-10-26 | 2017-05-03 | 日置电机株式会社 | 电流传感器和测定装置 |
CN109581026A (zh) * | 2017-09-25 | 2019-04-05 | 矢崎总业株式会社 | 电流传感器 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1396322B1 (it) * | 2009-10-08 | 2012-11-16 | Acegas Aps S P A | Trasformatore di misura autoalimentato |
CN102360049B (zh) * | 2011-09-05 | 2013-06-19 | 华中科技大学 | 磁调制器虚零点检测器 |
KR101329240B1 (ko) * | 2012-10-31 | 2013-11-20 | 이상철 | 플럭스 게이트 방식의 비접촉 전류 계측기 |
JP6304647B2 (ja) | 2012-11-21 | 2018-04-04 | パナソニックIpマネジメント株式会社 | 電流検出装置 |
CN105067868B (zh) * | 2015-09-15 | 2018-06-26 | 深圳市信瑞达电力设备有限公司 | 电流测量方法及装置 |
CN106018912A (zh) * | 2016-05-23 | 2016-10-12 | 北京柏艾斯科技有限公司 | 一种高精度通用型交直流电流测量装置 |
US9964574B2 (en) | 2016-06-06 | 2018-05-08 | Aerovironment, Inc. | Residual current detecting (RCD) and ground impedance monitoring transformer and control methods |
JP6829139B2 (ja) * | 2017-04-11 | 2021-02-10 | 日置電機株式会社 | 電流センサおよび測定装置 |
CN111537779B (zh) * | 2020-04-29 | 2024-07-19 | 中国原子能科学研究院 | 用于回旋加速器偏转引出的暗电流监测装置与方法 |
JP2022189076A (ja) * | 2021-06-10 | 2022-12-22 | 日置電機株式会社 | 電流センサ |
CN113866477B (zh) * | 2021-08-30 | 2022-07-05 | 中国人民解放军海军工程大学 | 四磁芯六线圈磁调制高精度超大孔径电流检测方法及系统 |
CN114019218B (zh) * | 2021-11-04 | 2024-04-09 | 国网河北省电力有限公司电力科学研究院 | 一种双通道零磁通电流传感器 |
CN114284047B (zh) * | 2022-03-04 | 2022-06-14 | 山西省机电设计研究院有限公司 | 开合母线式高精度零磁通电流互感器及误差补偿方法 |
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JPS5210514A (en) * | 1975-07-16 | 1977-01-26 | Mitsubishi Electric Corp | Transformation device |
JPS54159251A (en) * | 1978-06-07 | 1979-12-15 | Toshiba Corp | Electric energy detector |
JPS5560859A (en) * | 1978-10-30 | 1980-05-08 | Hitachi Ltd | Direct current detector |
EP0261707A1 (en) * | 1986-08-22 | 1988-03-30 | Holec Systemen En Componenten B.V. | Measuring circuit for continuous, accurate measurement of direct and alternating current |
JPS643568A (en) * | 1987-06-26 | 1989-01-09 | Fujitsu Ltd | Current detector |
JPS6416967A (en) * | 1987-06-05 | 1989-01-20 | Vacuumschmelze Gmbh | Current sensor by compensation theory |
JPH10332745A (ja) * | 1997-05-29 | 1998-12-18 | Sumitomo Special Metals Co Ltd | 電流センサー |
JPH11337591A (ja) * | 1998-05-28 | 1999-12-10 | Tempearl Ind Co Ltd | 直流電流検出装置 |
JP2004523909A (ja) * | 2001-03-05 | 2004-08-05 | バクームシュメルツェ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニ コマンディートゲゼルシャフト | 電流検出器用変成器 |
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US4482862A (en) * | 1982-06-10 | 1984-11-13 | The Charles Stark Draper Laboratory, Inc. | Current sensor |
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JP2002318250A (ja) * | 2001-02-16 | 2002-10-31 | Fuji Electric Co Ltd | 電流検出装置およびこれを用いた過負荷電流保安装置 |
CN1219302C (zh) * | 2002-12-18 | 2005-09-14 | 国电南京自动化股份有限公司 | 零磁通微电流传感器 |
DK176607B1 (da) | 2003-11-27 | 2008-11-10 | Danfysik As | Detektorkredslöb til brug ved strömmåling |
DK200500029A (da) * | 2005-01-07 | 2006-07-08 | Danfysik As | Detektorkredslöb til brug ved strömmåling |
-
2005
- 2005-11-04 EP EP05799505A patent/EP1807707B1/en active Active
- 2005-11-04 AT AT05799505T patent/ATE482402T1/de not_active IP Right Cessation
- 2005-11-04 JP JP2007539458A patent/JP4842275B2/ja active Active
- 2005-11-04 US US11/666,865 patent/US7667452B2/en active Active
- 2005-11-04 WO PCT/DK2005/000705 patent/WO2006048020A1/en active Application Filing
- 2005-11-04 CN CNB2005800376466A patent/CN100520417C/zh active Active
- 2005-11-04 DE DE602005023760T patent/DE602005023760D1/de active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5210514A (en) * | 1975-07-16 | 1977-01-26 | Mitsubishi Electric Corp | Transformation device |
JPS54159251A (en) * | 1978-06-07 | 1979-12-15 | Toshiba Corp | Electric energy detector |
JPS5560859A (en) * | 1978-10-30 | 1980-05-08 | Hitachi Ltd | Direct current detector |
EP0261707A1 (en) * | 1986-08-22 | 1988-03-30 | Holec Systemen En Componenten B.V. | Measuring circuit for continuous, accurate measurement of direct and alternating current |
JPS6416967A (en) * | 1987-06-05 | 1989-01-20 | Vacuumschmelze Gmbh | Current sensor by compensation theory |
JPS643568A (en) * | 1987-06-26 | 1989-01-09 | Fujitsu Ltd | Current detector |
JPH10332745A (ja) * | 1997-05-29 | 1998-12-18 | Sumitomo Special Metals Co Ltd | 電流センサー |
JPH11337591A (ja) * | 1998-05-28 | 1999-12-10 | Tempearl Ind Co Ltd | 直流電流検出装置 |
JP2004523909A (ja) * | 2001-03-05 | 2004-08-05 | バクームシュメルツェ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニ コマンディートゲゼルシャフト | 電流検出器用変成器 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106610442A (zh) * | 2015-10-26 | 2017-05-03 | 日置电机株式会社 | 电流传感器和测定装置 |
JP2017083220A (ja) * | 2015-10-26 | 2017-05-18 | 日置電機株式会社 | 電流センサおよび測定装置 |
US10288649B2 (en) | 2015-10-26 | 2019-05-14 | Hioki Denki Kabushiki Kaisha | Current sensor and measuring apparatus |
CN109581026A (zh) * | 2017-09-25 | 2019-04-05 | 矢崎总业株式会社 | 电流传感器 |
Also Published As
Publication number | Publication date |
---|---|
JP2008519269A (ja) | 2008-06-05 |
EP1807707A1 (en) | 2007-07-18 |
CN101052883A (zh) | 2007-10-10 |
WO2006048020A1 (en) | 2006-05-11 |
US7667452B2 (en) | 2010-02-23 |
ATE482402T1 (de) | 2010-10-15 |
US20080122430A1 (en) | 2008-05-29 |
CN100520417C (zh) | 2009-07-29 |
EP1807707B1 (en) | 2010-09-22 |
DE602005023760D1 (de) | 2010-11-04 |
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