JPS64891B2 - - Google Patents

Info

Publication number
JPS64891B2
JPS64891B2 JP8317981A JP8317981A JPS64891B2 JP S64891 B2 JPS64891 B2 JP S64891B2 JP 8317981 A JP8317981 A JP 8317981A JP 8317981 A JP8317981 A JP 8317981A JP S64891 B2 JPS64891 B2 JP S64891B2
Authority
JP
Japan
Prior art keywords
zero
ground fault
output
current
sequence voltage
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.)
Expired
Application number
JP8317981A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57196827A (en
Inventor
Kyoshi Myai
Makoto Shimizu
Hiroshi Myake
Yukinobu Naohara
Hideo Matsumoto
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.)
Kansai Electric Power Co Inc
Nissin Electric Co Ltd
Original Assignee
Nissin Electric Co Ltd
Kansai Denryoku KK
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 Nissin Electric Co Ltd, Kansai Denryoku KK filed Critical Nissin Electric Co Ltd
Priority to JP8317981A priority Critical patent/JPS57196827A/ja
Publication of JPS57196827A publication Critical patent/JPS57196827A/ja
Publication of JPS64891B2 publication Critical patent/JPS64891B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
JP8317981A 1981-05-29 1981-05-29 Ground-fault detector for nongrounding system power distribution wire Granted JPS57196827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8317981A JPS57196827A (en) 1981-05-29 1981-05-29 Ground-fault detector for nongrounding system power distribution wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8317981A JPS57196827A (en) 1981-05-29 1981-05-29 Ground-fault detector for nongrounding system power distribution wire

Publications (2)

Publication Number Publication Date
JPS57196827A JPS57196827A (en) 1982-12-02
JPS64891B2 true JPS64891B2 (de) 1989-01-09

Family

ID=13795065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8317981A Granted JPS57196827A (en) 1981-05-29 1981-05-29 Ground-fault detector for nongrounding system power distribution wire

Country Status (1)

Country Link
JP (1) JPS57196827A (de)

Also Published As

Publication number Publication date
JPS57196827A (en) 1982-12-02

Similar Documents

Publication Publication Date Title
US4825327A (en) Negative and zero sequence directional overcurrent unit for AC power transmission line protection
KR100206027B1 (ko) 지락전류로부터 추출된 직류성분에 의하여 지락을 검출하는 계자지락 검출기 및 계자지락계전기
US3515943A (en) Electrical fault detector
US4623949A (en) Bus differential relay
EP0151565B1 (de) Phasenrelais zum schutz von wechselkraftstromübertragungsleitungen
JPS61196718A (ja) 地絡保護装置
SE418556B (sv) Skyddsrelekrets
KR101989350B1 (ko) 중첩 무효 에너지 측정을 통한 마이크로그리드 보호계전기 및 그 제어 방법
JPH027248B2 (de)
CN109921404A (zh) 一种可控电流源接地电流全补偿装置及方法
RU168498U1 (ru) Устройство защиты электрических сетей среднего класса напряжения от однофазных замыканий на землю
JPS64891B2 (de)
US4308565A (en) Method and apparatus for fault direction determination
JPH036136Y2 (de)
JPS64892B2 (de)
JPH0317462Y2 (de)
JP2660334B2 (ja) 電気機器の漏電検出回路
JPH0217824A (ja) 配電線事故検出装置
JPS60261324A (ja) 選択地絡保護装置
JPH0522455B2 (de)
JPS602016A (ja) 直流送電線の保護方式
JPS5879427A (ja) 地絡継電装置
JPH08275386A (ja) 直流送電系統における中性線の故障検出保護装置
JPH0235952B2 (ja) Koshotenhyoteihoshiki
JPH04172915A (ja) 漏電遮断器