DE112021007937T5 - Leckstromsensor und schutzsystem für einen elektrischen pfad - Google Patents

Leckstromsensor und schutzsystem für einen elektrischen pfad Download PDF

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Publication number
DE112021007937T5
DE112021007937T5 DE112021007937.9T DE112021007937T DE112021007937T5 DE 112021007937 T5 DE112021007937 T5 DE 112021007937T5 DE 112021007937 T DE112021007937 T DE 112021007937T DE 112021007937 T5 DE112021007937 T5 DE 112021007937T5
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DE
Germany
Prior art keywords
excitation
output
circuit
leakage current
current
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.)
Pending
Application number
DE112021007937.9T
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German (de)
English (en)
Inventor
Toshihiko Miyauchi
Yasuyuki Okada
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
Publication of DE112021007937T5 publication Critical patent/DE112021007937T5/de
Pending legal-status Critical Current

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    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Measuring Magnetic Variables (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
DE112021007937.9T 2021-07-08 2021-07-08 Leckstromsensor und schutzsystem für einen elektrischen pfad Pending DE112021007937T5 (de)

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 (1)

Publication Number Publication Date
DE112021007937T5 true DE112021007937T5 (de) 2024-04-25

Family

ID=80624123

Family Applications (1)

Application Number Title Priority Date Filing Date
DE112021007937.9T Pending DE112021007937T5 (de) 2021-07-08 2021-07-08 Leckstromsensor und schutzsystem für einen elektrischen pfad

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 (1)

* 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

Family Cites Families (9)

* 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
EP1542025A4 (en) * 2002-06-18 2005-09-14 Loyal Port Company Ltd MAGNETIC BRIDGE TYPE CURRENT DETECTOR, MAGNETIC BRIDGE TYPE CURRENT DETECTION METHOD, AND MAGNETIC BRIDGE FOR USE WITH THIS SENSOR AND DETECTION METHOD
EP2423693B1 (en) * 2010-08-24 2020-02-26 LEM International SA Toroidal current transducer
JP5943768B2 (ja) * 2011-08-25 2016-07-05 三菱電機株式会社 直流電流検出装置
JP6188430B2 (ja) 2013-06-03 2017-08-30 三菱電機株式会社 電流検出装置
JP6298581B2 (ja) * 2013-09-30 2018-03-20 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
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 (1)

* 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

Also Published As

Publication number Publication date
CN117501139A (zh) 2024-02-02
JP7005824B1 (ja) 2022-01-24
KR20230174255A (ko) 2023-12-27
KR102794213B1 (ko) 2025-04-11
JPWO2023281696A1 (https=) 2023-01-12
WO2023281696A1 (ja) 2023-01-12

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