JPH0452049B2 - - Google Patents

Info

Publication number
JPH0452049B2
JPH0452049B2 JP57158276A JP15827682A JPH0452049B2 JP H0452049 B2 JPH0452049 B2 JP H0452049B2 JP 57158276 A JP57158276 A JP 57158276A JP 15827682 A JP15827682 A JP 15827682A JP H0452049 B2 JPH0452049 B2 JP H0452049B2
Authority
JP
Japan
Prior art keywords
circuit
signal
ground fault
output
level
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 - Lifetime
Application number
JP57158276A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5947917A (ja
Inventor
Sadao Shimizu
Ietsugu Ogura
Masayuki Oota
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.)
Nippon Kouatsu Electric Co
Chubu Electric Power Co Inc
Original Assignee
Nippon Kouatsu Electric Co
Chubu Electric Power Co Inc
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 Nippon Kouatsu Electric Co, Chubu Electric Power Co Inc filed Critical Nippon Kouatsu Electric Co
Priority to JP15827682A priority Critical patent/JPS5947917A/ja
Publication of JPS5947917A publication Critical patent/JPS5947917A/ja
Publication of JPH0452049B2 publication Critical patent/JPH0452049B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
JP15827682A 1982-09-10 1982-09-10 地絡故障表示器 Granted JPS5947917A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15827682A JPS5947917A (ja) 1982-09-10 1982-09-10 地絡故障表示器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15827682A JPS5947917A (ja) 1982-09-10 1982-09-10 地絡故障表示器

Publications (2)

Publication Number Publication Date
JPS5947917A JPS5947917A (ja) 1984-03-17
JPH0452049B2 true JPH0452049B2 (enrdf_load_stackoverflow) 1992-08-20

Family

ID=15668060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15827682A Granted JPS5947917A (ja) 1982-09-10 1982-09-10 地絡故障表示器

Country Status (1)

Country Link
JP (1) JPS5947917A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3748314B2 (ja) * 1997-03-31 2006-02-22 テンパール工業株式会社 漏電検出器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5622526A (en) * 1979-07-27 1981-03-03 Matsushita Electric Works Ltd Leakage detector circuit

Also Published As

Publication number Publication date
JPS5947917A (ja) 1984-03-17

Similar Documents

Publication Publication Date Title
JP2735598B2 (ja) 固体トリップ装置
KR100206027B1 (ko) 지락전류로부터 추출된 직류성분에 의하여 지락을 검출하는 계자지락 검출기 및 계자지락계전기
AU678036B2 (en) Ground fault circuit interrupter with immunity to wide band noise
EP0813281A2 (en) Apparatus for envelope detection of low current arcs
US4713604A (en) Monitoring device for detecting faults in an electrical device, particularly in an LC filter circuit in an AC voltage network
US3970901A (en) Method and apparatus for the detection of short circuits
US4063164A (en) Method and apparatus for detection of short circuits by phase monitoring traveling wave signals
US4823226A (en) Phase loss detection circuit including transient protection
CA1097740A (en) Method and apparatus for detecting fault currents in electrical networks
EP0059416A1 (en) Ground fault detecting device for use with a DC circuit
EP0202096A1 (en) Residual current detector
JPH0452049B2 (enrdf_load_stackoverflow)
US2735089A (en) Pushbutton-
JPH0833193A (ja) 受変電設備の変圧器用保護継電システム及び受変電設備の変圧器保護方法
JP3656824B2 (ja) 地絡方向継電装置
JP3396496B2 (ja) 直流送電線の保護継電装置
JPS5826640A (ja) き電線の過電流保護装置
EP0264971A2 (en) Voltage protective apparatus for variable-frequency power system
SU945937A1 (ru) Устройство дл защиты сборных шин электростанции и подстанции
US4128806A (en) Device for checking the insulation of the leads connecting a generator to a receiver
JP3240479B2 (ja) 微地絡区間標定装置
JPH086348Y2 (ja) 再点孤検出装置
AU595797B2 (en) Symmetrical fault current detector
JPS6248452B2 (enrdf_load_stackoverflow)
JPS5681003A (en) Method and apparatus for controlling electric car