DE2750386C2 - Vorrichtung zur Fehlerortung in Kabeln - Google Patents

Vorrichtung zur Fehlerortung in Kabeln

Info

Publication number
DE2750386C2
DE2750386C2 DE2750386A DE2750386A DE2750386C2 DE 2750386 C2 DE2750386 C2 DE 2750386C2 DE 2750386 A DE2750386 A DE 2750386A DE 2750386 A DE2750386 A DE 2750386A DE 2750386 C2 DE2750386 C2 DE 2750386C2
Authority
DE
Germany
Prior art keywords
potentiometer
resistance
path
switch
electrical current
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
DE2750386A
Other languages
German (de)
English (en)
Other versions
DE2750386A1 (de
Inventor
Tadaharu Tokyo Nakayama
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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
Priority claimed from JP13708076A external-priority patent/JPS5836742B2/ja
Priority claimed from JP7641077A external-priority patent/JPS5410948A/ja
Priority claimed from JP8177577A external-priority patent/JPS5416640A/ja
Priority claimed from JP10201177A external-priority patent/JPS5435339A/ja
Priority claimed from JP11354577A external-priority patent/JPS5446584A/ja
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of DE2750386A1 publication Critical patent/DE2750386A1/de
Application granted granted Critical
Publication of DE2750386C2 publication Critical patent/DE2750386C2/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Locating Faults (AREA)
DE2750386A 1976-11-13 1977-11-10 Vorrichtung zur Fehlerortung in Kabeln Expired DE2750386C2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP13708076A JPS5836742B2 (ja) 1976-11-13 1976-11-13 電力ケ−ブルの事故点探知方法
JP7641077A JPS5410948A (en) 1977-06-27 1977-06-27 Searching method of cable defective points
JP8177577A JPS5416640A (en) 1977-07-08 1977-07-08 Earth current eliminater
JP10201177A JPS5435339A (en) 1977-08-25 1977-08-25 Cable failure point locating device
JP11354577A JPS5446584A (en) 1977-09-21 1977-09-21 Stray current eliminating device

Publications (2)

Publication Number Publication Date
DE2750386A1 DE2750386A1 (de) 1978-05-18
DE2750386C2 true DE2750386C2 (de) 1983-08-25

Family

ID=27524621

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2750386A Expired DE2750386C2 (de) 1976-11-13 1977-11-10 Vorrichtung zur Fehlerortung in Kabeln

Country Status (6)

Country Link
US (1) US4161688A (enExample)
AU (1) AU512200B2 (enExample)
DE (1) DE2750386C2 (enExample)
FR (1) FR2370985A1 (enExample)
GB (1) GB1550550A (enExample)
IT (1) IT1091461B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111308272A (zh) * 2020-03-09 2020-06-19 西南交通大学 一种小电流接地故障区段定位方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5015958A (en) 1983-06-30 1991-05-14 Raychem Corporation Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors
US5382909A (en) 1983-06-30 1995-01-17 Raychem Corporation Method for detecting and obtaining information about changes in variables
ATE86040T1 (de) 1985-06-12 1993-03-15 Raychem Corp Kohlenwasserstoffsensor.
DE3721205A1 (de) * 1987-06-26 1989-01-05 Pfaudler Werke Ag Verfahren zur feststellung eines schadens einer korrosionsschutzschicht und messeinrichtung zur durchfuehrung dieses verfahrens
US5045787A (en) * 1989-12-27 1991-09-03 General Signal Corporation Apparatus and method for measuring insulated track joint resistances
US20030213724A1 (en) * 2000-03-20 2003-11-20 Sven Dobler Fragrance sampler insert
CN112684279B (zh) * 2020-11-06 2022-07-08 国网浙江省电力有限公司温州供电公司 一种基于相电流相似性的配电网单相接地故障检测算法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2105373A5 (enExample) * 1970-09-03 1972-04-28 Mergaux Edmond
US3800216A (en) * 1971-08-11 1974-03-26 Dynatel Corp Cable fault locator apparatus and method with reference voltage comparison
US3812420A (en) * 1972-12-21 1974-05-21 Gen Ind Inc Bridge circuit changing fault location method and device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111308272A (zh) * 2020-03-09 2020-06-19 西南交通大学 一种小电流接地故障区段定位方法

Also Published As

Publication number Publication date
FR2370985B1 (enExample) 1983-01-14
FR2370985A1 (fr) 1978-06-09
AU3023177A (en) 1979-05-10
GB1550550A (en) 1979-08-15
US4161688A (en) 1979-07-17
DE2750386A1 (de) 1978-05-18
AU512200B2 (en) 1980-09-25
IT1091461B (it) 1985-07-06

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Legal Events

Date Code Title Description
OD Request for examination
8181 Inventor (new situation)

Free format text: NAKAYAMA, TADAHARU, TOKYO, JP

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee