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KR830006694A - 전자식 무효전력량계 - Google Patents

전자식 무효전력량계 Download PDF

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Publication number
KR830006694A
KR830006694A KR1019810001694A KR810001694A KR830006694A KR 830006694 A KR830006694 A KR 830006694A KR 1019810001694 A KR1019810001694 A KR 1019810001694A KR 810001694 A KR810001694 A KR 810001694A KR 830006694 A KR830006694 A KR 830006694A
Authority
KR
South Korea
Prior art keywords
circuit
width modulation
pulse width
multiplier
voltage
Prior art date
Application number
KR1019810001694A
Other languages
English (en)
Other versions
KR840002377B1 (ko
Inventor
슌이찌 코바야시
Original Assignee
사바 쇼오이찌
도오쿄오 시바우라덴기 가부시기가이샤
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 사바 쇼오이찌, 도오쿄오 시바우라덴기 가부시기가이샤 filed Critical 사바 쇼오이찌
Publication of KR830006694A publication Critical patent/KR830006694A/ko
Application granted granted Critical
Publication of KR840002377B1 publication Critical patent/KR840002377B1/ko

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/127—Arrangements for measuring electric power or power factor by using pulse modulation
    • G01R21/1271—Measuring real or reactive component, measuring apparent energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

내용 없음

Description

전자식 무효전력량계
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 종래의 전자식 무효전력량계의 구성의 개략 블럭도.
제2도 내지 제5도는 본 발명의 1실시예에 관한 도면
제2도는 동 실시예의 구성의 개략 블록도.
제3도는 제2도에 표시한 PWM 회로의 상세한 회로도.
제4도(a),(b),(c)는 제3도에 표시한 PWM 회로의 동작을 설명하기 위한 파형도.
제5도는 시분할승 산회로의 승산처리를 설명하기 위한 파형도이다.

Claims (1)

  1. 전력급전선의 부하전압, 또는 소비전류에 비례한 전압신호에 의하여 펄스폭변조를 하는 펄스폭변조회로와, 이 펄스폭변조회로로 부터의 펄스신호를 소정의 시간 지연시키는 지연회로와, 이 지연회로에서 송출되는 펄스신호와 상기 급전선의 부하전압 또는 소비전류에 비례한 전압신호를 승산해서 무효전력을 얻는 승산호로와, 이 승산회로로 부터 송출되는 신호를 처리하여 무효적력량을 얻는 회로를 구비한 것을 특징으로 하는 전자식 무효전력량계.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019810001694A 1980-06-06 1981-05-16 전자식 무효 전략량계 KR840002377B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP76387 1980-06-06
JP7638780A JPS573049A (en) 1980-06-06 1980-06-06 Electronic type reactive power meter

Publications (2)

Publication Number Publication Date
KR830006694A true KR830006694A (ko) 1983-10-06
KR840002377B1 KR840002377B1 (ko) 1984-12-24

Family

ID=13603913

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810001694A KR840002377B1 (ko) 1980-06-06 1981-05-16 전자식 무효 전략량계

Country Status (2)

Country Link
JP (1) JPS573049A (ko)
KR (1) KR840002377B1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58149033A (ja) * 1982-03-02 1983-09-05 Minolta Camera Co Ltd 閃光発光装置
JPS5935154A (ja) * 1982-08-24 1984-02-25 Tokyo Electric Power Co Inc:The 電子式無効電力量計
JPS5935157A (ja) * 1982-08-24 1984-02-25 Tokyo Electric Power Co Inc:The 電力測定装置
JPS618680A (ja) * 1984-06-22 1986-01-16 Yokogawa Hokushin Electric Corp 無効電力・直流信号変換器
EP0524378B1 (de) * 1991-07-22 1995-08-16 Landis & Gyr Technology Innovation AG Anordnung zum Messen einer Blindleistung oder einer Blindenergie

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226257A (en) * 1975-08-22 1977-02-26 Mitsubishi Electric Corp Electric power system supervisory equipment

Also Published As

Publication number Publication date
KR840002377B1 (ko) 1984-12-24
JPS573049A (en) 1982-01-08

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