JPS6251925U - - Google Patents

Info

Publication number
JPS6251925U
JPS6251925U JP14181585U JP14181585U JPS6251925U JP S6251925 U JPS6251925 U JP S6251925U JP 14181585 U JP14181585 U JP 14181585U JP 14181585 U JP14181585 U JP 14181585U JP S6251925 U JPS6251925 U JP S6251925U
Authority
JP
Japan
Prior art keywords
phase
detection signal
circuit
output
rectified
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
JP14181585U
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 JP14181585U priority Critical patent/JPS6251925U/ja
Publication of JPS6251925U publication Critical patent/JPS6251925U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (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
図は従来例を示す回路図、第３図ａ，ｂは同上の
動作波形図である。 １…３相交流電源、２…負荷、３…接点、４…
変流器、５…整流回路、６…平滑回路、７…最大
値検出回路、８…過負荷処理回路、９…過負荷用
時限回路、１０…比較回路、１１…分圧回路、１
２…オア回路、１３…欠相用時限回路、１４…波
形整形回路、１５…相順判定回路またはＤ型フリ
ツプフロツプ、１６…反相用時限回路、１７…イ
ンバータ。

Claims (1)

    【実用新案登録請求の範囲】
  1. ３相交流の各相信号を独立に整流し、各整流出
    力を基準レベルと比較することにより欠相を検出
    する手段と、各整流出力のうちの２相の整流波形
    間の相順を判定することにより反相を検出する手
    段を備え、各検出信号によりそれぞれ時限回路を
    介して断路機構を制御するようにした構成におい
    て、欠相検出信号により反相検出信号の出力を抑
    止するようにして成る保護リレー回路。
JP14181585U 1985-09-17 1985-09-17 Pending JPS6251925U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14181585U JPS6251925U (ja) 1985-09-17 1985-09-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14181585U JPS6251925U (ja) 1985-09-17 1985-09-17

Publications (1)

Publication Number Publication Date
JPS6251925U true JPS6251925U (ja) 1987-03-31

Family

ID=31049951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14181585U Pending JPS6251925U (ja) 1985-09-17 1985-09-17

Country Status (1)

Country Link
JP (1) JPS6251925U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55139018A (en) * 1979-04-18 1980-10-30 Tokyo Shibaura Electric Co Stationary protective relay
JPS6046717A (ja) * 1983-08-22 1985-03-13 富士通株式会社 電源故障判別回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55139018A (en) * 1979-04-18 1980-10-30 Tokyo Shibaura Electric Co Stationary protective relay
JPS6046717A (ja) * 1983-08-22 1985-03-13 富士通株式会社 電源故障判別回路

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