JPH0472835U - - Google Patents

Info

Publication number
JPH0472835U
JPH0472835U JP11208390U JP11208390U JPH0472835U JP H0472835 U JPH0472835 U JP H0472835U JP 11208390 U JP11208390 U JP 11208390U JP 11208390 U JP11208390 U JP 11208390U JP H0472835 U JPH0472835 U JP H0472835U
Authority
JP
Japan
Prior art keywords
current
voltage
load current
detection circuit
resistors
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
JP11208390U
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 JP11208390U priority Critical patent/JPH0472835U/ja
Publication of JPH0472835U publication Critical patent/JPH0472835U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (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保護継電装置
の回路図、第2図は本考案の保護継電装置を用い
た配線概略図、第3図及び第4図はそれぞれ従来
例を示す第1図及び第2図の相当図である。 10a,10b,10c……変流器、18……
保護継電器、18d……制御回路、18e……引
外しコイル、19……全波整流器、20……スイ
ツチ、21,22,24……抵抗器、23……可
変抵抗器、25……過負荷検出回路、26……欠
相検出回路、27……出力回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 負荷電流を検出しその検出電流に応じた大きさ
    の検出電圧を得る電流検出回路と、この電流検出
    回路の出力電圧が所定時間以上継続されると負荷
    電流を遮断するための引外しコイルを駆動する出
    力回路と、前記負荷電流に応じた検出電流を電圧
    に変換する可変抵抗器とを備えた保護継電装置に
    おいて、前記負荷電流の検出電流を電圧に変換す
    るための複数の抵抗器と、この抵抗器をそれぞれ
    入切りするスイツチとを配設することを特徴とす
    る保護継電装置。
JP11208390U 1990-10-29 1990-10-29 Pending JPH0472835U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11208390U JPH0472835U (ja) 1990-10-29 1990-10-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11208390U JPH0472835U (ja) 1990-10-29 1990-10-29

Publications (1)

Publication Number Publication Date
JPH0472835U true JPH0472835U (ja) 1992-06-26

Family

ID=31859582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11208390U Pending JPH0472835U (ja) 1990-10-29 1990-10-29

Country Status (1)

Country Link
JP (1) JPH0472835U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06153303A (ja) * 1992-11-09 1994-05-31 Matsushita Electric Ind Co Ltd 漏電検出装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06153303A (ja) * 1992-11-09 1994-05-31 Matsushita Electric Ind Co Ltd 漏電検出装置

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