JPS547141A - Earthing detector - Google Patents

Earthing detector

Info

Publication number
JPS547141A
JPS547141A JP7152277A JP7152277A JPS547141A JP S547141 A JPS547141 A JP S547141A JP 7152277 A JP7152277 A JP 7152277A JP 7152277 A JP7152277 A JP 7152277A JP S547141 A JPS547141 A JP S547141A
Authority
JP
Japan
Prior art keywords
earthing
circuit
zero
current transformer
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.)
Granted
Application number
JP7152277A
Other languages
Japanese (ja)
Other versions
JPS5714096B2 (en
Inventor
Okito Fukushima
Yasutoshi Ide
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP7152277A priority Critical patent/JPS547141A/en
Publication of JPS547141A publication Critical patent/JPS547141A/en
Publication of JPS5714096B2 publication Critical patent/JPS5714096B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To provide the operating characteristic for time delay for earthing an apparatus by connecting through a time delaying circuit having overprotective circuit and double voltage rectifier circuit, a contact exciting coil to the secondary winding of zero-phase current transformer provided in the earthing detector utilizing the zero-phase current transformer for actuating a leakage breaker.
COPYRIGHT: (C)1979,JPO&Japio
JP7152277A 1977-06-16 1977-06-16 Earthing detector Granted JPS547141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7152277A JPS547141A (en) 1977-06-16 1977-06-16 Earthing detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7152277A JPS547141A (en) 1977-06-16 1977-06-16 Earthing detector

Publications (2)

Publication Number Publication Date
JPS547141A true JPS547141A (en) 1979-01-19
JPS5714096B2 JPS5714096B2 (en) 1982-03-23

Family

ID=13463132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7152277A Granted JPS547141A (en) 1977-06-16 1977-06-16 Earthing detector

Country Status (1)

Country Link
JP (1) JPS547141A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58134493U (en) * 1982-03-02 1983-09-09 日本セグメント工業株式会社 segment
JPS63112596U (en) * 1987-01-12 1988-07-20

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4120652Y1 (en) * 1964-04-03 1966-10-06
JPS49127155A (en) * 1973-04-10 1974-12-05
JPS49141318U (en) * 1973-04-06 1974-12-05

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4120652Y1 (en) * 1964-04-03 1966-10-06
JPS49141318U (en) * 1973-04-06 1974-12-05
JPS49127155A (en) * 1973-04-10 1974-12-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58134493U (en) * 1982-03-02 1983-09-09 日本セグメント工業株式会社 segment
JPS63112596U (en) * 1987-01-12 1988-07-20

Also Published As

Publication number Publication date
JPS5714096B2 (en) 1982-03-23

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