JPH0249329U - - Google Patents

Info

Publication number
JPH0249329U
JPH0249329U JP12572888U JP12572888U JPH0249329U JP H0249329 U JPH0249329 U JP H0249329U JP 12572888 U JP12572888 U JP 12572888U JP 12572888 U JP12572888 U JP 12572888U JP H0249329 U JPH0249329 U JP H0249329U
Authority
JP
Japan
Prior art keywords
ground fault
fault detection
motor
detection device
vary
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
JP12572888U
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 JP12572888U priority Critical patent/JPH0249329U/ja
Publication of JPH0249329U publication Critical patent/JPH0249329U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)
  • Protection Of Static Devices (AREA)

Description

【図面の簡単な説明】
第1図は本考案による地絡故障検出装置を説明
するための一実施例の構成図、第2図は他の実施
例の構成図、第3図は更に他の実施例の構成図、
第4図は更に他の実施例の構成図、第5図は従来
方式を説明する図、第6図は従来方式の他の例を
説明する図である。 1……しや断器、2……VVVF電源系統、3
……出力変圧器、4……設置用変圧器、5……タ
ツプ付き抵抗器、6……電動機、7……回転数検
出装置、8……タツプ切換装置、9……地絡故障
時しや断器引きはずし装置。

Claims (1)

    【実用新案登録請求の範囲】
  1. 可変電圧可変周波数制御される電動機の地絡故
    障検出方式において、地絡検出設定値は電動機の
    回転数に反比例して変化するよう設定することを
    特徴とする地絡故障検出装置。
JP12572888U 1988-09-28 1988-09-28 Pending JPH0249329U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12572888U JPH0249329U (ja) 1988-09-28 1988-09-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12572888U JPH0249329U (ja) 1988-09-28 1988-09-28

Publications (1)

Publication Number Publication Date
JPH0249329U true JPH0249329U (ja) 1990-04-05

Family

ID=31376592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12572888U Pending JPH0249329U (ja) 1988-09-28 1988-09-28

Country Status (1)

Country Link
JP (1) JPH0249329U (ja)

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