JP7005824B1 - 漏電センサおよび電路保護システム - Google Patents

漏電センサおよび電路保護システム Download PDF

Info

Publication number
JP7005824B1
JP7005824B1 JP2021564252A JP2021564252A JP7005824B1 JP 7005824 B1 JP7005824 B1 JP 7005824B1 JP 2021564252 A JP2021564252 A JP 2021564252A JP 2021564252 A JP2021564252 A JP 2021564252A JP 7005824 B1 JP7005824 B1 JP 7005824B1
Authority
JP
Japan
Prior art keywords
exciting
circuit
output
current
magnetic field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2021564252A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023281696A1 (https=
Inventor
俊彦 宮内
泰行 岡田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of JP7005824B1 publication Critical patent/JP7005824B1/ja
Publication of JPWO2023281696A1 publication Critical patent/JPWO2023281696A1/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
JP2021564252A 2021-07-08 2021-07-08 漏電センサおよび電路保護システム Active JP7005824B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/025779 WO2023281696A1 (ja) 2021-07-08 2021-07-08 漏電センサおよび電路保護システム

Publications (2)

Publication Number Publication Date
JP7005824B1 true JP7005824B1 (ja) 2022-01-24
JPWO2023281696A1 JPWO2023281696A1 (https=) 2023-01-12

Family

ID=80624123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021564252A Active JP7005824B1 (ja) 2021-07-08 2021-07-08 漏電センサおよび電路保護システム

Country Status (5)

Country Link
JP (1) JP7005824B1 (https=)
KR (1) KR102794213B1 (https=)
CN (1) CN117501139A (https=)
DE (1) DE112021007937T5 (https=)
WO (1) WO2023281696A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117970177B (zh) * 2024-01-04 2025-04-18 四川英杰新能源有限公司 一种基于半饱和磁感应强度的漏电检测装置及方法
JP7622894B1 (ja) 2024-07-04 2025-01-28 富士電機株式会社 電流検出装置、漏電遮断器及び漏電リレー

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06201731A (ja) * 1992-12-25 1994-07-22 Nippondenso Co Ltd 磁気平衡型電流測定装置
JP2013061322A (ja) * 2011-08-25 2013-04-04 Mitsubishi Electric Corp 直流電流検出装置
JP2014235086A (ja) * 2013-06-03 2014-12-15 三菱電機株式会社 電流検出装置
JP2015068725A (ja) * 2013-09-30 2015-04-13 東日本旅客鉄道株式会社 電流検出装置及びこれを備えた変電設備
JP2015194508A (ja) * 2010-08-24 2015-11-05 レム アンテレクチュアル プロペルティ エスアー トロイダルフラックスゲート電流変換器
JP2018091626A (ja) * 2015-04-16 2018-06-14 パナソニックＩｐマネジメント株式会社 漏電検出装置
JP2019012004A (ja) * 2017-06-30 2019-01-24 日置電機株式会社 電流検出装置および測定装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5992532U (ja) 1982-12-10 1984-06-23 東北金属工業株式会社 漏電検出器
WO2003107017A1 (ja) * 2002-06-01 2003-12-24 株式会社エルポート 磁気ブリッジ型電流センサー及び磁気ブリッジ型電流検出方法、並びに、前記センサーと検出方法に用いる磁気ブリッジ
CN119742151A (zh) * 2024-12-23 2025-04-01 广东电网有限责任公司广州供电局 基于磁平衡的双分裂并联电缆电流不平衡度调节系统和方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06201731A (ja) * 1992-12-25 1994-07-22 Nippondenso Co Ltd 磁気平衡型電流測定装置
JP2015194508A (ja) * 2010-08-24 2015-11-05 レム アンテレクチュアル プロペルティ エスアー トロイダルフラックスゲート電流変換器
JP2013061322A (ja) * 2011-08-25 2013-04-04 Mitsubishi Electric Corp 直流電流検出装置
JP2014235086A (ja) * 2013-06-03 2014-12-15 三菱電機株式会社 電流検出装置
JP2015068725A (ja) * 2013-09-30 2015-04-13 東日本旅客鉄道株式会社 電流検出装置及びこれを備えた変電設備
JP2018091626A (ja) * 2015-04-16 2018-06-14 パナソニックＩｐマネジメント株式会社 漏電検出装置
JP2019012004A (ja) * 2017-06-30 2019-01-24 日置電機株式会社 電流検出装置および測定装置

Also Published As

Publication number Publication date
CN117501139A (zh) 2024-02-02
KR20230174255A (ko) 2023-12-27
JPWO2023281696A1 (https=) 2023-01-12
KR102794213B1 (ko) 2025-04-11
DE112021007937T5 (de) 2024-04-25
WO2023281696A1 (ja) 2023-01-12

Similar Documents

Publication Publication Date Title
CN102985838B (zh) 用于检测磁芯中的磁特征参量的方法和装置
JP7005824B1 (ja) 漏電センサおよび電路保護システム
RU2583346C2 (ru) Обнаружение скрытого металлического или магнитного объекта
US20110006753A1 (en) Electric current sensor
JP6060278B2 (ja) 鋼板の内部欠陥検出装置及び方法
EP2787363B1 (en) Geomagnetic sensor
JP6200445B2 (ja) 電流検出器
CN113557436B (zh) 短路探测装置以及短路探测方法
US20200200838A1 (en) Magnetic field detection device and method of detecting magnetic field
JP2014150598A (ja) 電力変換装置及び変圧器の偏磁判定方法
CN110456142A (zh) 磁调制式直流漏电流传感器
CN113678007B (zh) 短路检测装置以及短路检测方法
JP6388672B2 (ja) 硬貨検出システム
WO2016170588A1 (ja) 磁界測定システムおよびこれを用いた故障診断システム
JP6597076B2 (ja) 漏電検出器
JP4006816B2 (ja) 渦流探傷装置
KR102298348B1 (ko) 직류 전류측정 방법 및 그 장치
US10884076B2 (en) MI magnetic field sensor
JP6320770B2 (ja) 零磁束制御型電流センサおよび零磁束制御型電流センサに対する零調整方法
JP2017204973A (ja) 欠相検知システム、欠相検知装置および欠相検知方法
JP4701389B2 (ja) 燃料電池の電極面の欠陥検査装置
JP2008292334A (ja) 渦流探傷装置
Djamal et al. Displacement Sensor based on Fluxgate Magnetometer
JP2024144126A (ja) 電流センサ及び測定装置
WO2024203288A1 (ja) 電流センサ及び測定装置

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20211028

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20211028

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20211028

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20211207

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20220105

R151 Written notification of patent or utility model registration

Ref document number: 7005824

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250