JPH0425437U - - Google Patents

Info

Publication number
JPH0425437U
JPH0425437U JP6619090U JP6619090U JPH0425437U JP H0425437 U JPH0425437 U JP H0425437U JP 6619090 U JP6619090 U JP 6619090U JP 6619090 U JP6619090 U JP 6619090U JP H0425437 U JPH0425437 U JP H0425437U
Authority
JP
Japan
Prior art keywords
zero
phase current
load
suppression device
current transformer
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
JP6619090U
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 JP6619090U priority Critical patent/JPH0425437U/ja
Publication of JPH0425437U publication Critical patent/JPH0425437U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Description

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

第１図は本考案の一実施例を示す回路図、第２
図は従来の回路図である。 １１，１２，１３……開閉器、３……地絡方向
継電器、４……過電流継電器、５……開閉サージ
抑制装置、６……零相変流器。 Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is a conventional circuit diagram. 1 1 , 1 2 , 1 3 ... Switch, 3 ... Earth fault direction relay, 4 ... Overcurrent relay, 5 ... Switching surge suppressor, 6 ... Zero-phase current transformer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ３相母線から開閉器を介した負荷側に零相電流
検出用零相変流器を設け、該開閉器を介した負荷
側母線と接地間に開閉サージ抑制装置を設けた電
力系統において、前記開閉サージ抑制装置と負荷
側母線とを前記零相変流器を貫通して接続し、該
零相変流器の検出電流から開閉サージ抑制装置の
故障検出電流を得る構成にしたことを特徴とする
開閉サージ抑制装置の故障検出装置。 In a power system in which a zero-phase current transformer for zero-phase current detection is provided on the load side from the three-phase bus via a switch, and a switching surge suppression device is provided between the load-side bus and ground via the switch, The switching surge suppression device and the load-side bus are connected through the zero-phase current transformer, and the failure detection current of the switching surge suppression device is obtained from the detection current of the zero-phase current transformer. Failure detection device for opening/closing surge suppressor.
JP6619090U 1990-06-22 1990-06-22 Pending JPH0425437U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6619090U JPH0425437U (en) 1990-06-22 1990-06-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6619090U JPH0425437U (en) 1990-06-22 1990-06-22

Publications (1)

Publication Number Publication Date
JPH0425437U true JPH0425437U (en) 1992-02-28

Family

ID=31598687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6619090U Pending JPH0425437U (en) 1990-06-22 1990-06-22

Country Status (1)

Country Link
JP (1) JPH0425437U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002017458A1 (en) * 2000-08-22 2002-02-28 Mitsubishi Denki Kabushiki Kaisha Ground fault interrupter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002017458A1 (en) * 2000-08-22 2002-02-28 Mitsubishi Denki Kabushiki Kaisha Ground fault interrupter

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