JPS5895143U - Open phase detection device for three-phase power supply - Google Patents

Open phase detection device for three-phase power supply

Info

Publication number
JPS5895143U
JPS5895143U JP19218181U JP19218181U JPS5895143U JP S5895143 U JPS5895143 U JP S5895143U JP 19218181 U JP19218181 U JP 19218181U JP 19218181 U JP19218181 U JP 19218181U JP S5895143 U JPS5895143 U JP S5895143U
Authority
JP
Japan
Prior art keywords
power supply
phase
detection device
open
phase power
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
JP19218181U
Other languages
Japanese (ja)
Inventor
内園　茂
Original Assignee
デンゲン株式会社
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 デンゲン株式会社 filed Critical デンゲン株式会社
Priority to JP19218181U priority Critical patent/JPS5895143U/en
Publication of JPS5895143U publication Critical patent/JPS5895143U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の三相電源の欠相検出装置のブロック
図、第２図は三相整流と単相整流との出力波形を比較し
て示す図表、第３図は第１図に示す三相電源の欠相検出
装置の電気回路図である。Figure 1 is a block diagram of the open phase detection device for a three-phase power supply of this invention, Figure 2 is a chart comparing the output waveforms of three-phase rectification and single-phase rectification, and Figure 3 is shown in Figure 1. FIG. 2 is an electrical circuit diagram of an open phase detection device for a three-phase power supply.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 三相電源に整流回路を接続し、こ゛の整流回路に平均直
流電圧に変換するためのフィルターを介して電圧比較器
を接続し、これによって三相電源の欠相を検出するよう
にしたことを特徴とする三相電源の欠相検出装置。A rectifier circuit is connected to a three-phase power supply, and a voltage comparator is connected to this rectifier circuit via a filter to convert it to an average DC voltage, thereby detecting an open phase in the three-phase power supply. Features: Open phase detection device for three-phase power supply.
JP19218181U 1981-12-22 1981-12-22 Open phase detection device for three-phase power supply Pending JPS5895143U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19218181U JPS5895143U (en) 1981-12-22 1981-12-22 Open phase detection device for three-phase power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19218181U JPS5895143U (en) 1981-12-22 1981-12-22 Open phase detection device for three-phase power supply

Publications (1)

Publication Number Publication Date
JPS5895143U true JPS5895143U (en) 1983-06-28

Family

ID=33307662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19218181U Pending JPS5895143U (en) 1981-12-22 1981-12-22 Open phase detection device for three-phase power supply

Country Status (1)

Country Link
JP (1) JPS5895143U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009207329A (en) * 2008-02-29 2009-09-10 Daikin Ind Ltd Overvoltage protective circuit
JP2009213185A (en) * 2008-02-29 2009-09-17 Daikin Ind Ltd Overvoltage protection circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55136819A (en) * 1979-04-10 1980-10-25 Fuji Electric Co Ltd Power voltage malfunction detecting circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55136819A (en) * 1979-04-10 1980-10-25 Fuji Electric Co Ltd Power voltage malfunction detecting circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009207329A (en) * 2008-02-29 2009-09-10 Daikin Ind Ltd Overvoltage protective circuit
JP2009213185A (en) * 2008-02-29 2009-09-17 Daikin Ind Ltd Overvoltage protection circuit

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