JPS6350929B2 - - Google Patents

Info

Publication number
JPS6350929B2
JPS6350929B2 JP3330981A JP3330981A JPS6350929B2 JP S6350929 B2 JPS6350929 B2 JP S6350929B2 JP 3330981 A JP3330981 A JP 3330981A JP 3330981 A JP3330981 A JP 3330981A JP S6350929 B2 JPS6350929 B2 JP S6350929B2
Authority
JP
Japan
Prior art keywords
phase
voltage
zero
ground
ground 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.)
Expired
Application number
JP3330981A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57148526A (en
Inventor
Kazuo Inoe
Koichi Endo
Giichi Shibuya
Hiroaki Kato
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.)
Mitsubishi Electric Corp
Tokyo Electric Power Co Holdings Inc
Original Assignee
Tokyo Electric Power Co Inc
Mitsubishi Electric Corp
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 Electric Power Co Inc, Mitsubishi Electric Corp filed Critical Tokyo Electric Power Co Inc
Priority to JP3330981A priority Critical patent/JPS57148526A/ja
Publication of JPS57148526A publication Critical patent/JPS57148526A/ja
Publication of JPS6350929B2 publication Critical patent/JPS6350929B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
JP3330981A 1981-03-09 1981-03-09 Ground-fault phase detector Granted JPS57148526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3330981A JPS57148526A (en) 1981-03-09 1981-03-09 Ground-fault phase detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3330981A JPS57148526A (en) 1981-03-09 1981-03-09 Ground-fault phase detector

Publications (2)

Publication Number Publication Date
JPS57148526A JPS57148526A (en) 1982-09-13
JPS6350929B2 true JPS6350929B2 (enExample) 1988-10-12

Family

ID=12382952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3330981A Granted JPS57148526A (en) 1981-03-09 1981-03-09 Ground-fault phase detector

Country Status (1)

Country Link
JP (1) JPS57148526A (enExample)

Also Published As

Publication number Publication date
JPS57148526A (en) 1982-09-13

Similar Documents

Publication Publication Date Title
US4472676A (en) Leakage impedance measuring system including a superimposed measuring voltage having a frequency differing slightly from system frequency
US4791375A (en) Apparatus for detecting degradation of an arrester
JPS6350929B2 (enExample)
JPS6350931B2 (enExample)
JPS6350930B2 (enExample)
EP0801745B1 (en) Measuring method for determining the amplitude and phase of the fundamental tone of an alternating voltage
JP2630862B2 (ja) 変化幅検出装置
JPH0136330B2 (enExample)
JP2723286B2 (ja) 地絡検出装置
JP2538758Y2 (ja) ベクトル変化検出装置
JPS6350932B2 (enExample)
JPS61147729A (ja) 地絡相検出装置
JP3274616B2 (ja) 送電線故障電圧検出方法および装置
JPS61147728A (ja) 地絡相検出装置
JPS61147731A (ja) 地絡相検出装置
JP2715090B2 (ja) 故障点標定装置
JP2535922Y2 (ja) ベクトル変化検出装置
JPH0246127A (ja) 対称分保護リレー
JP3483621B2 (ja) 交流電気量変化分検出方式
JPS6116756Y2 (enExample)
JPS598130B2 (ja) 非接地直流回路の地絡監視用回路装置
JPS5950719A (ja) 地絡相検出装置
JPH05336668A (ja) 単独運転検出装置
JPH0619407B2 (ja) 地絡相検出装置
JPH01214215A (ja) 漏電電流トランスデューサ