JPS58127822U - Phase loss relay - Google Patents

Phase loss relay

Info

Publication number
JPS58127822U
JPS58127822U JP2371582U JP2371582U JPS58127822U JP S58127822 U JPS58127822 U JP S58127822U JP 2371582 U JP2371582 U JP 2371582U JP 2371582 U JP2371582 U JP 2371582U JP S58127822 U JPS58127822 U JP S58127822U
Authority
JP
Japan
Prior art keywords
trip
occurred
detects
phase loss
open
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
JP2371582U
Other languages
Japanese (ja)
Inventor
正己 榊原
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2371582U priority Critical patent/JPS58127822U/en
Publication of JPS58127822U publication Critical patent/JPS58127822U/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図は従来の欠相リレーを示すブロック図、第１図は
本考案の一実施例による欠相リレーを示すブロック図で
ある。 図中、同一符号は同一または相当部分を示し、Ｓｌ・・
・変流器、Ｂ１・・・欠相検出回路、Ｒ１・・・出力回
路、Ａ２・・・起動検出回路、Ｈｌ・・・保持回路、Ｌ
ＥＤ・・・表示ランプ。FIG. 1 is a block diagram showing a conventional open-phase relay, and FIG. 1 is a block diagram showing an open-phase relay according to an embodiment of the present invention. In the figures, the same reference numerals indicate the same or corresponding parts, Sl...
・Current transformer, B1...Open phase detection circuit, R1...Output circuit, A2...Start detection circuit, Hl...Holding circuit, L
ED...Display lamp.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 負荷電流を検出する変流器と、この変流器の出力信号よ
り欠相を検出する欠相検出回路と、負荷電流が流れ始め
たことを検出する起動検出回路と、トリップ動作したこ
とを記憶する保持回路と、トリップ動作したことを表示
する表示ランプとを備えた欠相リレー。A current transformer that detects the load current, an open phase detection circuit that detects open phase from the output signal of this current transformer, a start detection circuit that detects when the load current has started flowing, and a memory that remembers when a trip has occurred. An open-phase relay equipped with a holding circuit to indicate that a trip has occurred, and an indicator lamp that indicates that a trip has occurred.
JP2371582U 1982-02-22 1982-02-22 Phase loss relay Pending JPS58127822U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2371582U JPS58127822U (en) 1982-02-22 1982-02-22 Phase loss relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2371582U JPS58127822U (en) 1982-02-22 1982-02-22 Phase loss relay

Publications (1)

Publication Number Publication Date
JPS58127822U true JPS58127822U (en) 1983-08-30

Family

ID=30035737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2371582U Pending JPS58127822U (en) 1982-02-22 1982-02-22 Phase loss relay

Country Status (1)

Country Link
JP (1) JPS58127822U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976919A (en) * 1975-06-04 1976-08-24 Borg-Warner Corporation Phase sequence detector for three-phase AC power system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976919A (en) * 1975-06-04 1976-08-24 Borg-Warner Corporation Phase sequence detector for three-phase AC power system

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