JPH0454436U - - Google Patents

Info

Publication number
JPH0454436U
JPH0454436U JP9798890U JP9798890U JPH0454436U JP H0454436 U JPH0454436 U JP H0454436U JP 9798890 U JP9798890 U JP 9798890U JP 9798890 U JP9798890 U JP 9798890U JP H0454436 U JPH0454436 U JP H0454436U
Authority
JP
Japan
Prior art keywords
transformer
ground fault
ground
zero
phase current
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
JP9798890U
Other languages
Japanese (ja)
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 JP9798890U priority Critical patent/JPH0454436U/ja
Publication of JPH0454436U publication Critical patent/JPH0454436U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Protection Of Transformers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案による変圧器保護装置の１実施
例を示す単線接続図、第２図は従来例を示す配電
回路の単線接続図である。 ４……負荷開閉器、６……配電用変圧器、１１
……機器アース線、１２……零相変流器、１３…
…地絡過電流継電器。 FIG. 1 is a single-line connection diagram showing one embodiment of the transformer protection device according to the present invention, and FIG. 2 is a single-line connection diagram of a conventional power distribution circuit. 4...Load switch, 6...Distribution transformer, 11
...Equipment ground wire, 12...Zero-phase current transformer, 13...
...Ground fault overcurrent relay.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 変圧器本体を対地より絶縁した変圧器の機器ア
ース線に取り付けられ地絡電流を検出する零相変
流器と、該零相変流器からの地絡電流により動作
し変圧器１次開閉器のトリツプ信号を出力する地
絡過電流継電器とを備えてなる変圧器保護装置。 A zero-phase current transformer is attached to the equipment ground wire of the transformer that isolates the transformer body from the ground and detects ground fault current, and a transformer primary switch is operated by the ground fault current from the zero-phase current transformer. A transformer protection device comprising a ground fault overcurrent relay that outputs a trip signal.
JP9798890U 1990-09-17 1990-09-17 Pending JPH0454436U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9798890U JPH0454436U (en) 1990-09-17 1990-09-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9798890U JPH0454436U (en) 1990-09-17 1990-09-17

Publications (1)

Publication Number Publication Date
JPH0454436U true JPH0454436U (en) 1992-05-11

Family

ID=31838806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9798890U Pending JPH0454436U (en) 1990-09-17 1990-09-17

Country Status (1)

Country Link
JP (1) JPH0454436U (en)

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