EP3109884A4 - Leakage current detection unit and leakage current breaker - Google Patents

Leakage current detection unit and leakage current breaker Download PDF

Info

Publication number: EP3109884A4
Authority: EP; European Patent Office
Prior art keywords: leakage current; detection unit; breaker; current detection; current breaker
Prior art date: 2014-02-17
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.): Granted

Application number

EP14882559.9A

Other languages

German (de)

French (fr)

Other versions

EP3109884A1 (en

EP3109884B1 (en

Inventor

Yutaka Sato

Yasuhiro Takahashi

Takashi Hashimoto

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.)

Fuji Electric FA Components and Systems Co Ltd

Original Assignee

Fuji Electric FA Components and Systems Co Ltd

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.)

2014-02-17

Filing date

2014-12-12

Publication date

2017-11-08

2014-12-12 Application filed by Fuji Electric FA Components and Systems Co Ltd filed Critical Fuji Electric FA Components and Systems Co Ltd

2016-12-28 Publication of EP3109884A1 publication Critical patent/EP3109884A1/en

2017-11-08 Publication of EP3109884A4 publication Critical patent/EP3109884A4/en

2019-03-27 Application granted granted Critical

2019-03-27 Publication of EP3109884B1 publication Critical patent/EP3109884B1/en

Status Active legal-status Critical Current

2034-12-12 Anticipated expiration legal-status Critical

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
- H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
- H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
- H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
- H01H2083/148—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer with primary windings formed of rigid copper conductors

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Transformers For Measuring Instruments (AREA)
Breakers (AREA)

EP14882559.9A 2014-02-17 2014-12-12 Leakage current detection unit and leakage current breaker Active EP3109884B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2014027858		2014-02-17
PCT/JP2014/006202 WO2015121908A1 (en)	2014-02-17	2014-12-12	Leakage current detection unit and leakage current breaker

Publications (3)

Publication Number	Publication Date
EP3109884A1 EP3109884A1 (en)	2016-12-28
EP3109884A4 true EP3109884A4 (en)	2017-11-08
EP3109884B1 EP3109884B1 (en)	2019-03-27

Family

ID=53799680

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP14882559.9A Active EP3109884B1 (en)	2014-02-17	2014-12-12	Leakage current detection unit and leakage current breaker

Country Status (4)

Country	Link
EP (1)	EP3109884B1 (en)
JP (1)	JP6065128B2 (en)
CN (1)	CN105474347B (en)
WO (1)	WO2015121908A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN107907714B (en) *	2017-07-14	2019-12-24	国网浙江省电力公司湖州供电公司	A multifunctional electric leakage detection device
CN108574160B (en) *	2018-06-01	2024-09-10	浙江中凯科技股份有限公司	Conductive device for controlling and protecting switch electric appliance
CN108766846A (en) *	2018-07-09	2018-11-06	中国电力科学研究院有限公司	A kind of intelligence with creepage protection function, which take, controls current limiting circuit breaker device and guard method
JP7289100B2 (en) *	2019-07-22	2023-06-09	パナソニックＩｐマネジメント株式会社	Earth leakage protector and distribution board

Citations (3)

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US20010022713A1 (en) *	2000-03-17	2001-09-20	Gimenez Miguel Ortiz	Earth leakage detection device
JP2005347090A (en) *	2004-06-02	2005-12-15	Kawamura Electric Inc	Earth leakage breaker
JP4736949B2 (en) *	2006-05-23	2011-07-27	富士電機機器制御株式会社	Earth leakage breaker

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JPS4873717U (en) *	1971-12-18	1973-09-13
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JP2988062B2 (en) *	1991-10-22	1999-12-06	富士電機株式会社	Insulation structure of primary conductor of zero-phase current transformer
FR2711838B1 (en) *	1993-10-25	1996-01-05	Legrand Sa	Toroid housing, and wound toroid comprising such a housing.
JP3704885B2 (en) *	1997-05-19	2005-10-12	富士電機機器制御株式会社	Leakage current detection structure of earth leakage breaker
FR2772979B1 (en) *	1997-12-18	2002-09-20	Schneider Electric Sa	DEVICE FOR ELECTRICALLY CONNECTING A DIFFERENTIAL BLOCK ON A CIRCUIT BREAKER OR THE LIKE AND DIFFERENTIAL BLOCK EQUIPPED WITH SUCH A DEVICE
CN2473740Y (en) *	2001-04-29	2002-01-23	锡山市宏泰电器有限责任公司	Mutual induction mechanism in residual current breaker
CN202905448U (en) *	2012-11-12	2013-04-24	常熟开关制造有限公司(原常熟开关厂）	Master loop fixing structure for zero sequence current transformers

2014
- 2014-12-12 EP EP14882559.9A patent/EP3109884B1/en active Active
- 2014-12-12 JP JP2015562574A patent/JP6065128B2/en active Active
- 2014-12-12 CN CN201480043766.6A patent/CN105474347B/en active Active
- 2014-12-12 WO PCT/JP2014/006202 patent/WO2015121908A1/en active Application Filing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20010022713A1 (en) *	2000-03-17	2001-09-20	Gimenez Miguel Ortiz	Earth leakage detection device
JP2005347090A (en) *	2004-06-02	2005-12-15	Kawamura Electric Inc	Earth leakage breaker
JP4736949B2 (en) *	2006-05-23	2011-07-27	富士電機機器制御株式会社	Earth leakage breaker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2015121908A1 *

Also Published As

Publication number	Publication date
JP6065128B2 (en)	2017-01-25
CN105474347B (en)	2017-12-12
JPWO2015121908A1 (en)	2017-03-30
EP3109884A1 (en)	2016-12-28
EP3109884B1 (en)	2019-03-27
CN105474347A (en)	2016-04-06
WO2015121908A1 (en)	2015-08-20

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EP3176546A4 (en)	2017-12-13	Physical-quantity detection device
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EP3282263A4 (en)	2018-12-05	Current detection device
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EP3191840A4 (en)	2018-04-11	Metal-antibody tagging and plasma-based detection
EP3163997A4 (en)	2018-02-28	Detection device
EP3364197A4 (en)	2019-07-17	Current detection device

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