DE68904743D1 - Verfahren zum nachweis elektrischer groessen. - Google Patents

Verfahren zum nachweis elektrischer groessen.

Info

Publication number
DE68904743D1
DE68904743D1 DE8989110589T DE68904743T DE68904743D1 DE 68904743 D1 DE68904743 D1 DE 68904743D1 DE 8989110589 T DE8989110589 T DE 8989110589T DE 68904743 T DE68904743 T DE 68904743T DE 68904743 D1 DE68904743 D1 DE 68904743D1
Authority
DE
Germany
Prior art keywords
detecting electric
sizes
electric sizes
detecting
electric
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.)
Expired - Fee Related
Application number
DE8989110589T
Other languages
English (en)
Other versions
DE68904743T2 (de
Inventor
Sunao Mitsubishi Denki Suzuki
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 DE68904743D1 publication Critical patent/DE68904743D1/de
Publication of DE68904743T2 publication Critical patent/DE68904743T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/255—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with counting of pulses during a period of time proportional to voltage or current, delivered by a pulse generator with fixed frequency
    • 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
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • 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
    • G01R19/02—Measuring effective values, i.e. root-mean-square values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
DE8989110589T 1988-11-16 1989-06-12 Verfahren zum nachweis elektrischer groessen. Expired - Fee Related DE68904743T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63290701A JPH0737998B2 (ja) 1988-11-16 1988-11-16 電気量検出器

Publications (2)

Publication Number Publication Date
DE68904743D1 true DE68904743D1 (de) 1993-03-18
DE68904743T2 DE68904743T2 (de) 1993-05-19

Family

ID=17759394

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8989110589T Expired - Fee Related DE68904743T2 (de) 1988-11-16 1989-06-12 Verfahren zum nachweis elektrischer groessen.

Country Status (6)

Country Link
US (1) US4943766A (de)
EP (1) EP0371192B1 (de)
JP (1) JPH0737998B2 (de)
KR (1) KR920005055B1 (de)
AU (1) AU606528B2 (de)
DE (1) DE68904743T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231673B (en) * 1989-04-18 1993-01-27 Standard Telephones Cables Ltd Direct current meter circuit
JP3119541B2 (ja) * 1993-03-25 2000-12-25 株式会社東芝 周波数検出方式
JPH0715865A (ja) * 1993-06-25 1995-01-17 Oki Electric Ind Co Ltd 電源回路の保護装置
DE69431778T2 (de) * 1993-08-12 2003-10-02 Rockwell International Corp Einrichtung zum Abschätzen der Amplitude und Frequenz eines verrauschten,vorgespannten Sinusoids aus kurzen Abtastblöcken
US5519560A (en) * 1994-03-01 1996-05-21 Eaton Corporation Unity gain filter for current transformer
US5652507A (en) * 1996-01-31 1997-07-29 Eaton Corporation Apparatus and method for measuring an AC current which saturates the core of a current transformer
WO2008014582A1 (en) * 2006-08-02 2008-02-07 Ziwen Yao Producing a phasor representation of an electrical entity in a multiphase ac electric power system
CN104635015B (zh) * 2010-10-12 2017-05-10 国网河南省电力公司南阳供电公司 超高压电网和电流带负荷检测装置
KR101774245B1 (ko) * 2013-02-18 2017-09-19 엘에스산전 주식회사 Ｒｍｓ 검출기 및 이를 적용한 차단기
KR102635868B1 (ko) * 2016-01-26 2024-02-14 삼성전자주식회사 전자 장치 및 그의 제어방법
US11092464B2 (en) 2019-01-14 2021-08-17 Hamilton Sundstrand Corporation High speed AC input sensor conversion

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2314870A1 (de) * 1973-03-26 1974-10-10 Siemens Ag Anordnung zur digitalen oder analogen messung von effektivwerten oder leistungen
JPS618675A (ja) * 1984-06-22 1986-01-16 Mitsubishi Electric Corp 電気量計測装置
US4672501A (en) * 1984-06-29 1987-06-09 General Electric Company Circuit breaker and protective relay unit
JPH0828934B2 (ja) * 1984-07-31 1996-03-21 株式会社東芝 保護制御装置
JPH06105266B2 (ja) * 1987-12-28 1994-12-21 三菱電機株式会社 デジタル保護継電器
JPH0737997B2 (ja) * 1988-10-31 1995-04-26 三菱電機株式会社 電気量検出器

Also Published As

Publication number Publication date
US4943766A (en) 1990-07-24
EP0371192B1 (de) 1993-02-03
KR900008284A (ko) 1990-06-04
AU3626689A (en) 1990-05-24
AU606528B2 (en) 1991-02-07
DE68904743T2 (de) 1993-05-19
JPH02136751A (ja) 1990-05-25
JPH0737998B2 (ja) 1995-04-26
EP0371192A1 (de) 1990-06-06
KR920005055B1 (ko) 1992-06-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee