JPH02142997U - - Google Patents

Info

Publication number
JPH02142997U
JPH02142997U JP1989051391U JP5139189U JPH02142997U JP H02142997 U JPH02142997 U JP H02142997U JP 1989051391 U JP1989051391 U JP 1989051391U JP 5139189 U JP5139189 U JP 5139189U JP H02142997 U JPH02142997 U JP H02142997U
Authority
JP
Japan
Prior art keywords
current
circuit
abnormality
electric blower
actual
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
JP1989051391U
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 JP1989051391U priority Critical patent/JPH02142997U/ja
Publication of JPH02142997U publication Critical patent/JPH02142997U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Electric Motors In General (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電動送風機風
量検出装置の構成図、第２図は送風機特性及び駆
動電動機電流の説明図である。 １０…保護リレー、１１…変流器、１３，１４
…設定器、１５，１６…比較器、１７…警報表示
回路、１８…外部出力回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 電動送風機を駆動する駆動電動機の主回路に流
    れる実電流を検出する電流検出器と、予め、主回
    路の設定電流を設定する電流設定器と、前記実電
    流及び設定電流の電流値を比較する比較回路と、
    前記実電流が前記設定電流より小さな値になつた
    場合に異常表示する異常表示回路と、外部に異常
    信号を出す外部信号回路を具備してなる電動送風
    機の風量検出装置。
JP1989051391U 1989-04-28 1989-04-28 Pending JPH02142997U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989051391U JPH02142997U (ja) 1989-04-28 1989-04-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989051391U JPH02142997U (ja) 1989-04-28 1989-04-28

Publications (1)

Publication Number Publication Date
JPH02142997U true JPH02142997U (ja) 1990-12-04

Family

ID=31570795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989051391U Pending JPH02142997U (ja) 1989-04-28 1989-04-28

Country Status (1)

Country Link
JP (1) JPH02142997U (ja)

Similar Documents

Publication Publication Date Title
JPH02142997U (ja)
JPS6229725U (ja)
JPS6440234U (ja)
JPH0310291U (ja)
JPH03123621U (ja)
JPS61185232U (ja)
JPH01131978U (ja)
JPH0466694U (ja)
JPS63138831U (ja)
JPH0184081U (ja)
JPS6184638U (ja)
JPS60131867U (ja) 交流電動機回転検知センサ
JPS62101335U (ja)
JPH0321939U (ja)
JPS6117623U (ja) 電磁流量計
JPH03115816U (ja)
JPH03101130U (ja)
JPS59109045U (ja) 真空しや断器の保護装置
JPH0332266U (ja)
JPS63637U (ja)
JPS63176395U (ja)
JPH0260888U (ja)
JPS61172396U (ja)
JPH0339398U (ja)
JPH0171935U (ja)