JPS55112575A - Faulty point ranging unit - Google Patents

Faulty point ranging unit

Info

Publication number
JPS55112575A
JPS55112575A JP1974079A JP1974079A JPS55112575A JP S55112575 A JPS55112575 A JP S55112575A JP 1974079 A JP1974079 A JP 1974079A JP 1974079 A JP1974079 A JP 1974079A JP S55112575 A JPS55112575 A JP S55112575A
Authority
JP
Japan
Prior art keywords
faulty point
impedance
distance
faulty
ranging unit
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.)
Pending
Application number
JP1974079A
Other languages
Japanese (ja)
Inventor
Izumi Mitani
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1974079A priority Critical patent/JPS55112575A/en
Publication of JPS55112575A publication Critical patent/JPS55112575A/en
Pending legal-status Critical Current

Links

Landscapes

  • Locating Faults (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To not only range a faulty point by using the voltage and the current of a transmission line to obtain the impedance to the faulty point but also eliminate the influence of the faulty point resistance in this case to improve a ranging precision.
CONSTITUTION: After sampled at a fixed time interval by circuit 8, the voltage and the current of its own end and the electric place of the other party are subjected to A/D conversion, and these digital values are used to operate the impedance to a faulty point by operation circuit 9. Since the obtained impedance and the distance to the faulty point are proportional to each other, the faulty point is displayed through a conversion circuit, which converts the impedance to a distance, with the absolute of the distance.
COPYRIGHT: (C)1980,JPO&Japio
JP1974079A 1979-02-23 1979-02-23 Faulty point ranging unit Pending JPS55112575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1974079A JPS55112575A (en) 1979-02-23 1979-02-23 Faulty point ranging unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1974079A JPS55112575A (en) 1979-02-23 1979-02-23 Faulty point ranging unit

Publications (1)

Publication Number Publication Date
JPS55112575A true JPS55112575A (en) 1980-08-30

Family

ID=12007725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1974079A Pending JPS55112575A (en) 1979-02-23 1979-02-23 Faulty point ranging unit

Country Status (1)

Country Link
JP (1) JPS55112575A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57153270A (en) * 1981-03-18 1982-09-21 Mitsubishi Electric Corp Fault point ranging device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57153270A (en) * 1981-03-18 1982-09-21 Mitsubishi Electric Corp Fault point ranging device

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