JPS57145525A - Automatic monitoring circuit for ground- fault relay - Google Patents

Automatic monitoring circuit for ground- fault relay

Info

Publication number
JPS57145525A
JPS57145525A JP56027895A JP2789581A JPS57145525A JP S57145525 A JPS57145525 A JP S57145525A JP 56027895 A JP56027895 A JP 56027895A JP 2789581 A JP2789581 A JP 2789581A JP S57145525 A JPS57145525 A JP S57145525A
Authority
JP
Japan
Prior art keywords
ground
monitoring circuit
automatic monitoring
fault relay
fault
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
JP56027895A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0216649B2 (enrdf_load_stackoverflow
Inventor
Riyouichi Taira
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP56027895A priority Critical patent/JPS57145525A/ja
Publication of JPS57145525A publication Critical patent/JPS57145525A/ja
Publication of JPH0216649B2 publication Critical patent/JPH0216649B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
JP56027895A 1981-02-27 1981-02-27 Automatic monitoring circuit for ground- fault relay Granted JPS57145525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56027895A JPS57145525A (en) 1981-02-27 1981-02-27 Automatic monitoring circuit for ground- fault relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56027895A JPS57145525A (en) 1981-02-27 1981-02-27 Automatic monitoring circuit for ground- fault relay

Publications (2)

Publication Number Publication Date
JPS57145525A true JPS57145525A (en) 1982-09-08
JPH0216649B2 JPH0216649B2 (enrdf_load_stackoverflow) 1990-04-17

Family

ID=12233616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56027895A Granted JPS57145525A (en) 1981-02-27 1981-02-27 Automatic monitoring circuit for ground- fault relay

Country Status (1)

Country Link
JP (1) JPS57145525A (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51137847A (en) * 1975-05-22 1976-11-29 Mitsubishi Electric Corp An earth trouble detecting apparatus with a detection circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51137847A (en) * 1975-05-22 1976-11-29 Mitsubishi Electric Corp An earth trouble detecting apparatus with a detection circuit

Also Published As

Publication number Publication date
JPH0216649B2 (enrdf_load_stackoverflow) 1990-04-17

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