JPS61101436U - - Google Patents

Info

Publication number
JPS61101436U
JPS61101436U JP18638184U JP18638184U JPS61101436U JP S61101436 U JPS61101436 U JP S61101436U JP 18638184 U JP18638184 U JP 18638184U JP 18638184 U JP18638184 U JP 18638184U JP S61101436 U JPS61101436 U JP S61101436U
Authority
JP
Japan
Prior art keywords
voltage
current
computing unit
phase
converters
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.)
Pending
Application number
JP18638184U
Other languages
English (en)
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
Priority to JP18638184U priority Critical patent/JPS61101436U/ja
Publication of JPS61101436U publication Critical patent/JPS61101436U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示す回路図、第２
図は従来回路の構成図である。 １，３…変流器、１０〜１２…演算器、２２…
比較器、２３…設定器、２４，２５…抵抗器、２
６…演算器、２７〜２９…交流―直流変換器、３
０…演算器。

Claims (1)

    【実用新案登録請求の範囲】
  1. ３相のうち２つの相に流れる電流を検出する２
    つの変流器と、これらの変流器の各検出電流を電
    圧値に変換して加算し、残りの１相の電流に対応
    した電圧値を求める第１の演算器と、この第１の
    演算器の出力電圧および変換された電圧値をそれ
    ぞれ直流電圧に変換する３つの交流―直流変換器
    と、この３つの交流―直流変換器の出力電圧を加
    算し、３相平均値電圧を求める第２の演算器と、
    この第２の演算器出力電圧と前記交流―直流変換
    器の出力電圧との偏差をそれぞれ求める３つの第
    ３の演算器と、この第３の演算器の出力電圧と予
    め設定された基準電圧とをそれぞれ比較し、前者
    が後者を越えたとき３相不平衡電流が流れたこと
    を示す検出信号を出力する比較器とを備えた３相
    電流の不平衡検出回路。
JP18638184U 1984-12-07 1984-12-07 Pending JPS61101436U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18638184U JPS61101436U (ja) 1984-12-07 1984-12-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18638184U JPS61101436U (ja) 1984-12-07 1984-12-07

Publications (1)

Publication Number Publication Date
JPS61101436U true JPS61101436U (ja) 1986-06-28

Family

ID=30743848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18638184U Pending JPS61101436U (ja) 1984-12-07 1984-12-07

Country Status (1)

Country Link
JP (1) JPS61101436U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02184765A (ja) * 1989-01-10 1990-07-19 Mitsubishi Electric Corp 三相交流用電流検出器
JP2009055739A (ja) * 2007-08-28 2009-03-12 Aisin Seiki Co Ltd 電源装置及びその欠相判定方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51129643A (en) * 1975-05-06 1976-11-11 Kunimitsu Onoue Load-current/phase-lack detecting circuit for three-phase circuit
JPS5651437B2 (ja) * 1973-06-22 1981-12-05

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5651437B2 (ja) * 1973-06-22 1981-12-05
JPS51129643A (en) * 1975-05-06 1976-11-11 Kunimitsu Onoue Load-current/phase-lack detecting circuit for three-phase circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02184765A (ja) * 1989-01-10 1990-07-19 Mitsubishi Electric Corp 三相交流用電流検出器
JP2009055739A (ja) * 2007-08-28 2009-03-12 Aisin Seiki Co Ltd 電源装置及びその欠相判定方法

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