JPH0123968B2 - - Google Patents

Info

Publication number
JPH0123968B2
JPH0123968B2 JP2576684A JP2576684A JPH0123968B2 JP H0123968 B2 JPH0123968 B2 JP H0123968B2 JP 2576684 A JP2576684 A JP 2576684A JP 2576684 A JP2576684 A JP 2576684A JP H0123968 B2 JPH0123968 B2 JP H0123968B2
Authority
JP
Japan
Prior art keywords
phase
pseudo
voltage
ground
signal
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
JP2576684A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60170339A (ja
Inventor
Akira Myahara
Yukio Kuga
Eizaburo Sakawa
Atsuhiro Yoshizaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2576684A priority Critical patent/JPS60170339A/ja
Publication of JPS60170339A publication Critical patent/JPS60170339A/ja
Publication of JPH0123968B2 publication Critical patent/JPH0123968B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5416—Methods of transmitting or receiving signals via power distribution lines by adding signals to the wave form of the power source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5466—Systems for power line communications using three phases conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP2576684A 1984-02-14 1984-02-14 搬送波受信復調装置 Granted JPS60170339A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2576684A JPS60170339A (ja) 1984-02-14 1984-02-14 搬送波受信復調装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2576684A JPS60170339A (ja) 1984-02-14 1984-02-14 搬送波受信復調装置

Publications (2)

Publication Number Publication Date
JPS60170339A JPS60170339A (ja) 1985-09-03
JPH0123968B2 true JPH0123968B2 (enExample) 1989-05-09

Family

ID=12174958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2576684A Granted JPS60170339A (ja) 1984-02-14 1984-02-14 搬送波受信復調装置

Country Status (1)

Country Link
JP (1) JPS60170339A (enExample)

Also Published As

Publication number Publication date
JPS60170339A (ja) 1985-09-03

Similar Documents

Publication Publication Date Title
US8698504B2 (en) System for detection of a ground fault in a high resistance ground network
US20210184675A1 (en) Sensor device, method of controlling sensor device, and program therefor
JP3062206B2 (ja) 位相検出器
US4527261A (en) Hiline interference eliminator
JPS60170339A (ja) 搬送波受信復調装置
JPH10322887A (ja) 地絡距離継電器
JP2723286B2 (ja) 地絡検出装置
RU2031506C1 (ru) Способ определения особой фазы при замыкании на землю линии электропередачи
JP3186665B2 (ja) 位相推定回路および復調回路
JPS6350931B2 (enExample)
JPS61147731A (ja) 地絡相検出装置
JP3065815B2 (ja) 部分放電検出方法
JPS59209020A (ja) 欠相検出回路
JP2948305B2 (ja) 漏液検出システム
JPS5944926A (ja) 地絡相検出装置
JPS5944925A (ja) 地絡相検出装置
JP3194635B2 (ja) 電路の絶縁又は接地抵抗監視装置及び信号印加方法
JPS61147729A (ja) 地絡相検出装置
JPS58127172A (ja) 浮遊容量を抑圧した電路の絶縁抵抗測定装置
JP2025052693A (ja) ジャイロセンサ
JPS5950726A (ja) 地絡相検出装置
JP2920981B2 (ja) ２回線送電線の故障点標定方法
JPS5950716A (ja) 地絡相検出装置
JPH07336246A (ja) Ｆｍ混信検知方法および装置
JPS6350929B2 (enExample)

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term