JPWO2022239047A1 - - Google Patents

Info

Publication number
JPWO2022239047A1
JPWO2022239047A1 JP2023520571A JP2023520571A JPWO2022239047A1 JP WO2022239047 A1 JPWO2022239047 A1 JP WO2022239047A1 JP 2023520571 A JP2023520571 A JP 2023520571A JP 2023520571 A JP2023520571 A JP 2023520571A JP WO2022239047 A1 JPWO2022239047 A1 JP WO2022239047A1
Authority
JP
Japan
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
JP2023520571A
Other versions
JPWO2022239047A5 (ja
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 filed Critical
Publication of JPWO2022239047A1 publication Critical patent/JPWO2022239047A1/ja
Publication of JPWO2022239047A5 publication Critical patent/JPWO2022239047A5/ja
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency 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
    • H02H7/04Emergency 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00Details of emergency protective circuit arrangements
    • H02H1/04Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
    • H02H1/043Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks to inrush currents
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2506Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
    • G01R19/2509Details concerning sampling, digitizing or waveform capturing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/005Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing phase or frequency of 2 mutually independent oscillations in demodulators)
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16Spectrum analysis; Fourier analysis
    • G01R23/20Measurement of non-linear distortion
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/46Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to frequency deviations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Transformers (AREA)
JP2023520571A 2021-05-10 2021-05-10 Pending JPWO2022239047A1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/017623 WO2022239047A1 (ja) 2021-05-10 2021-05-10 保護継電器

Publications (2)

Publication Number Publication Date
JPWO2022239047A1 true JPWO2022239047A1 (ja) 2022-11-17
JPWO2022239047A5 JPWO2022239047A5 (ja) 2023-12-07

Family

ID=84028463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023520571A Pending JPWO2022239047A1 (ja) 2021-05-10 2021-05-10

Country Status (5)

Country Link
JP (1) JPWO2022239047A1 (ja)
KR (1) KR20230164719A (ja)
CN (1) CN117223183A (ja)
DE (1) DE112021007643T5 (ja)
WO (1) WO2022239047A1 (ja)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1080053A (ja) 1996-09-06 1998-03-24 Toshiba Transport Eng Kk 交流き電用距離リレー及びその不要動作抑止方法
JP5932477B2 (ja) * 2012-05-18 2016-06-08 株式会社東芝 保護継電装置及び電力供給回路
JP6599072B2 (ja) * 2017-09-01 2019-10-30 三菱電機株式会社 ディジタル保護継電器、及びディジタル保護継電器の閾値学習方法
KR20230034393A (ko) * 2020-08-28 2023-03-09 미쓰비시덴키 가부시키가이샤 디지털 보호 계전기 및 디지털 보호 계전기 감시 시스템

Also Published As

Publication number Publication date
CN117223183A (zh) 2023-12-12
WO2022239047A1 (ja) 2022-11-17
KR20230164719A (ko) 2023-12-04
DE112021007643T5 (de) 2024-02-29

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Legal Events

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Effective date: 20230911

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