JPS5783120A - Method of detecting ground-fault accident zone - Google Patents

Method of detecting ground-fault accident zone

Info

Publication number
JPS5783120A
JPS5783120A JP15929680A JP15929680A JPS5783120A JP S5783120 A JPS5783120 A JP S5783120A JP 15929680 A JP15929680 A JP 15929680A JP 15929680 A JP15929680 A JP 15929680A JP S5783120 A JPS5783120 A JP S5783120A
Authority
JP
Japan
Prior art keywords
fault accident
detecting ground
accident zone
zone
ground
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
JP15929680A
Other languages
Japanese (ja)
Other versions
JPH023375B2 (en
Inventor
Saburou Ishikawa
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.)
Togami Electric Mfg Co Ltd
Original Assignee
Togami Electric Mfg 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 Togami Electric Mfg Co Ltd filed Critical Togami Electric Mfg Co Ltd
Priority to JP15929680A priority Critical patent/JPS5783120A/en
Publication of JPS5783120A publication Critical patent/JPS5783120A/en
Publication of JPH023375B2 publication Critical patent/JPH023375B2/ja
Granted legal-status Critical Current

Links

JP15929680A 1980-11-11 1980-11-11 Method of detecting ground-fault accident zone Granted JPS5783120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15929680A JPS5783120A (en) 1980-11-11 1980-11-11 Method of detecting ground-fault accident zone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15929680A JPS5783120A (en) 1980-11-11 1980-11-11 Method of detecting ground-fault accident zone

Publications (2)

Publication Number Publication Date
JPS5783120A true JPS5783120A (en) 1982-05-24
JPH023375B2 JPH023375B2 (en) 1990-01-23

Family

ID=15690688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15929680A Granted JPS5783120A (en) 1980-11-11 1980-11-11 Method of detecting ground-fault accident zone

Country Status (1)

Country Link
JP (1) JPS5783120A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6318922A (en) * 1986-07-10 1988-01-26 株式会社日立製作所 Distribution lines remote monitor and control system
JPH01214221A (en) * 1988-02-20 1989-08-28 Nissin Electric Co Ltd Instantaneous ground fault detector for high voltage distribution line
JP2011149959A (en) * 2011-04-25 2011-08-04 Hitachi Industrial Equipment Systems Co Ltd Insulation monitoring device
JP2015163032A (en) * 2014-02-28 2015-09-07 株式会社Nttファシリティーズ Power supply system, power supply control apparatus, and power supply control method and program in power supply system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138349A (en) * 1974-04-22 1975-11-04
JPS5518830A (en) * 1978-07-25 1980-02-09 Tokyo Electric Power Co Multichannel grounding protector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138349A (en) * 1974-04-22 1975-11-04
JPS5518830A (en) * 1978-07-25 1980-02-09 Tokyo Electric Power Co Multichannel grounding protector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6318922A (en) * 1986-07-10 1988-01-26 株式会社日立製作所 Distribution lines remote monitor and control system
JPH01214221A (en) * 1988-02-20 1989-08-28 Nissin Electric Co Ltd Instantaneous ground fault detector for high voltage distribution line
JP2011149959A (en) * 2011-04-25 2011-08-04 Hitachi Industrial Equipment Systems Co Ltd Insulation monitoring device
JP2015163032A (en) * 2014-02-28 2015-09-07 株式会社Nttファシリティーズ Power supply system, power supply control apparatus, and power supply control method and program in power supply system

Also Published As

Publication number Publication date
JPH023375B2 (en) 1990-01-23

Similar Documents

Publication Publication Date Title
ZA815271B (en) Method of fracturation detection
JPS5789167A (en) Method of discriminating process
DE3167094D1 (en) Method of detecting position of symmetric article
GB2075972B (en) Method of synthesizing-unsaturatedketones
JPS55151224A (en) Method of detecting collision of matter
DE3478350D1 (en) Method of detecting radioactive substance
JPS5783120A (en) Method of detecting ground-fault accident zone
JPS5671996A (en) Method of detecting chip part
JPS5556963A (en) Method of detecting elevator traffic need
GB8308177D0 (en) Flaw detection method
JPS5722962A (en) Method of detecting presence of car
JPS5720122A (en) Method of inspecting ground-fault protecting device
JPS56150922A (en) Ground detecting method
JPS5752319A (en) Ground-fault detecting method
DE3378434D1 (en) Method for detecting fire
JPS57149180A (en) Method of detecting position
JPS56123712A (en) Method of detecting malfunction of electric device
JPS5720115A (en) Method of detecting fluctuation of power
JPS5731319A (en) Method of inspecting protection relay
JPS5762498A (en) Retardant detecting method
JPS5752317A (en) Method of checking protecting relay
JPS5749321A (en) Method of checking protecting relay
JPS5783121A (en) Method of preventing burnout of shortcircuit accident
JPS5794898A (en) Method of detecting gas
JPS57129124A (en) Method of inspecting protection relay