JPS63182634U - - Google Patents

Info

Publication number
JPS63182634U
JPS63182634U JP1987071721U JP7172187U JPS63182634U JP S63182634 U JPS63182634 U JP S63182634U JP 1987071721 U JP1987071721 U JP 1987071721U JP 7172187 U JP7172187 U JP 7172187U JP S63182634 U JPS63182634 U JP S63182634U
Authority
JP
Japan
Prior art keywords
ground fault
current
inverter
current calculation
calculates
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
JP1987071721U
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 JP1987071721U priority Critical patent/JPS63182634U/ja
Publication of JPS63182634U publication Critical patent/JPS63182634U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Protection Of Static Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Power Conversion 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地絡保護装置
の構成図、第2図は周波数変化による地絡電流特
性の説明図である。 1…インバータ、2…マイクロコンピユータ、
3…トランジスタ、4…零相変流器、5…インバ
ータ主回路出力部、6…地絡電流整定ボリユーム
、7…地絡警報接点、8…零相電流入力変換回路
、9…地絡電流演算部、10…地絡事故判別部、
11…地絡警報出力回路、12…インバータ周波
数制御部、13…可変周波数入力変換回路、14
…充電々流演算部、15…地絡電流整定値入力変
換回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. インバータ出力周波数の変化に応じた充電々流
    を演算する充電々流演算部と、地絡電流を演算す
    る地絡電流演算部と、地絡警報を出力する地絡警
    報出力回路と、前記地絡電流演算部からの地絡電
    流及び整定値の比較を行なう地絡事故判別部とを
    具備し、前記インバータ出力周波数に関係なく一
    定の地絡検出を行なう事ができるインバータ用地
    絡検出装置。
JP1987071721U 1987-05-15 1987-05-15 Pending JPS63182634U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987071721U JPS63182634U (ja) 1987-05-15 1987-05-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987071721U JPS63182634U (ja) 1987-05-15 1987-05-15

Publications (1)

Publication Number Publication Date
JPS63182634U true JPS63182634U (ja) 1988-11-24

Family

ID=30914532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987071721U Pending JPS63182634U (ja) 1987-05-15 1987-05-15

Country Status (1)

Country Link
JP (1) JPS63182634U (ja)

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