KR102115243B1 - 보호 릴레이 장치 - Google Patents

보호 릴레이 장치 Download PDF

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Publication number
KR102115243B1
KR102115243B1 KR1020190016655A KR20190016655A KR102115243B1 KR 102115243 B1 KR102115243 B1 KR 102115243B1 KR 1020190016655 A KR1020190016655 A KR 1020190016655A KR 20190016655 A KR20190016655 A KR 20190016655A KR 102115243 B1 KR102115243 B1 KR 102115243B1
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KR
South Korea
Prior art keywords
phase
current
failure
ground fault
differential
Prior art date
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KR1020190016655A
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English (en)
Korean (ko)
Other versions
KR20200038164A (ko
Inventor
시게토오 오다
Original Assignee
미쓰비시덴키 가부시키가이샤
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Publication of KR20200038164A publication Critical patent/KR20200038164A/ko
Application granted granted Critical
Publication of KR102115243B1 publication Critical patent/KR102115243B1/ko

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • H02H7/045—Differential protection of transformers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Transformers (AREA)
  • Protection Of Static Devices (AREA)
KR1020190016655A 2018-10-02 2019-02-13 보호 릴레이 장치 KR102115243B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018187338A JP7117963B2 (ja) 2018-10-02 2018-10-02 保護リレー装置
JPJP-P-2018-187338 2018-10-02

Publications (2)

Publication Number Publication Date
KR20200038164A KR20200038164A (ko) 2020-04-10
KR102115243B1 true KR102115243B1 (ko) 2020-05-27

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ID=70107863

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020190016655A KR102115243B1 (ko) 2018-10-02 2019-02-13 보호 릴레이 장치

Country Status (2)

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JP (1) JP7117963B2 (ja)
KR (1) KR102115243B1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7292193B2 (ja) * 2019-12-03 2023-06-16 三菱電機株式会社 保護リレー装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013055735A (ja) 2011-09-01 2013-03-21 Mitsubishi Electric Corp 変圧器保護継電器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149729A (ja) * 1983-02-15 1984-08-27 株式会社東芝 差動継電器
JPS62244218A (ja) 1986-04-14 1987-10-24 株式会社東芝 変圧器保護用差動継電装置
JPH01259720A (ja) * 1988-04-06 1989-10-17 Mitsubishi Electric Corp 変圧器保護リレー
JP2002186169A (ja) * 2000-12-11 2002-06-28 Toshiba Corp 変圧器保護継電装置
JP5068200B2 (ja) * 2008-02-29 2012-11-07 三菱電機株式会社 電流差動保護リレー
CN104218543B (zh) * 2013-05-30 2016-12-28 南京南瑞继保电气有限公司 电流源型变流器差动保护方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013055735A (ja) 2011-09-01 2013-03-21 Mitsubishi Electric Corp 変圧器保護継電器

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Publication number Publication date
JP7117963B2 (ja) 2022-08-15
KR20200038164A (ko) 2020-04-10
JP2020058142A (ja) 2020-04-09

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