RU2015149610A - METHOD FOR IDENTIFICATION OF THE SOURCE OF THE WALKING CURRENT - Google Patents

METHOD FOR IDENTIFICATION OF THE SOURCE OF THE WALKING CURRENT Download PDF

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Publication number
RU2015149610A
RU2015149610A RU2015149610A RU2015149610A RU2015149610A RU 2015149610 A RU2015149610 A RU 2015149610A RU 2015149610 A RU2015149610 A RU 2015149610A RU 2015149610 A RU2015149610 A RU 2015149610A RU 2015149610 A RU2015149610 A RU 2015149610A
Authority
RU
Russia
Prior art keywords
potential difference
source
stray current
determined
pipeline
Prior art date
Application number
RU2015149610A
Other languages
Russian (ru)
Other versions
RU2642137C2 (en
Inventor
Руслан Викторович Агиней
Сергей Викторович Савченков
Валерий Викторович Мусонов
Андрей Александрович Зубков
Юрий Викторович Александров
Станислав Владимирович Адаменко
Алексей Вячеславович Крюков
Сергей Михайлович Колтаков
Original Assignee
Акционерное общество "Гипрогазцентр"
Общество с ограниченной ответственностью "Газпром трансгаз Ухта"
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 Акционерное общество "Гипрогазцентр", Общество с ограниченной ответственностью "Газпром трансгаз Ухта" filed Critical Акционерное общество "Гипрогазцентр"
Priority to RU2015149610A priority Critical patent/RU2642137C2/en
Publication of RU2015149610A publication Critical patent/RU2015149610A/en
Application granted granted Critical
Publication of RU2642137C2 publication Critical patent/RU2642137C2/en

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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Pipeline Systems (AREA)
  • Prevention Of Electric Corrosion (AREA)

Claims (1)

Способ идентификации источника блуждающего тока, включающий отключение средств электрохимической защиты трубопровода, синхронное измерение разности потенциалов «труба-земля» по меньшей мере в двух точках обследуемого участка трубопровода, анализ графика изменения разности потенциалов во времени и идентификацию источника блуждающего тока по признакам единства источника блуждающего тока, действующего на обследуемый участок, отсутствия в измеренной разности потенциала переменной составляющей с частотами, кратными промышленной частоте сети переменного тока, отличающийся тем, что определяют точки экстремумы на графике изменения разности потенциалов во времени, определяют скорость нарастания разности потенциалов до установления экстремального значения, определяют коэффициент корреляции между массивами значений экстремумов и скорости нарастания разности потенциалов, выполняют спектральный анализ графика разности потенциалов, при значении определяемого коэффициента корреляции по модулю более 0,9 и при частоте колебаний с наибольшей амплитудой от 0,0001 Гц до 0,001 Гц, считают, что источник блуждающего тока связан с воздействием геомагнитных вариаций.A method for identifying a source of stray current, including turning off the electrochemical protection of the pipeline, synchronous measurement of the potential difference "pipe-to-ground" at least at two points of the surveyed section of the pipeline, analyzing the graph of the potential difference over time and identifying the source of stray current according to the signs of the unity of the stray current source acting on the surveyed area, the absence in the measured potential difference of a variable component with frequencies that are multiples of the industrial hour an AC network, characterized in that the extreme points are determined on the graph of the potential difference over time, the potential difference rises to the extreme value, the correlation coefficient between the arrays of extrema and the potential difference rise is determined, a spectral analysis of the potential difference is performed, when the value of the determined correlation coefficient modulo more than 0.9 and when the oscillation frequency with the largest amplitude from 0.0001 Hz to 0.001 Hz , believe that the source of stray current is associated with the influence of geomagnetic variations.
RU2015149610A 2015-11-18 2015-11-18 Method of identification of source of ground currents RU2642137C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2015149610A RU2642137C2 (en) 2015-11-18 2015-11-18 Method of identification of source of ground currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2015149610A RU2642137C2 (en) 2015-11-18 2015-11-18 Method of identification of source of ground currents

Publications (2)

Publication Number Publication Date
RU2015149610A true RU2015149610A (en) 2017-05-24
RU2642137C2 RU2642137C2 (en) 2018-01-24

Family

ID=58874000

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2015149610A RU2642137C2 (en) 2015-11-18 2015-11-18 Method of identification of source of ground currents

Country Status (1)

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RU (1) RU2642137C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111562423A (en) * 2020-04-17 2020-08-21 北京市燃气集团有限责任公司 Method and device for calculating influence range of subway stray current on buried pipeline
CN117955065A (en) * 2024-03-27 2024-04-30 国网上海市电力公司 Multi-source stray current intelligent protection method and system based on frequency analysis

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1330597A1 (en) * 1985-08-07 1987-08-15 Институт Геофизики И Инженерной Сейсмологии Ан Армсср Method of geoelectric prospecting by means of stray currents
RU2287832C1 (en) * 2005-07-26 2006-11-20 Общество с ограниченной ответственностью Фирма "Газприборавтоматика" Device for measuring polarization potential of metallic underground structure in zone of effect of wandering currents
KR20090078515A (en) * 2008-01-15 2009-07-20 (주)에이티티 Method and apparatus for detecting electric leakage current generting position
RU2473098C1 (en) * 2011-08-15 2013-01-20 Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий-Газпром ВНИИГАЗ" Method to detect location of stray current location
RU2012149599A (en) * 2012-11-22 2014-05-27 Юрий Анатольевич Королев METHOD FOR NON-CONTACT DETERMINATION OF PLACES OF FLOWING VOLUME CURRENTS ON UNDERGROUND CURRENT CONDUCTING COMMUNICATIONS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111562423A (en) * 2020-04-17 2020-08-21 北京市燃气集团有限责任公司 Method and device for calculating influence range of subway stray current on buried pipeline
CN111562423B (en) * 2020-04-17 2022-08-05 北京市燃气集团有限责任公司 Method and device for calculating influence range of subway stray current on buried pipeline
CN117955065A (en) * 2024-03-27 2024-04-30 国网上海市电力公司 Multi-source stray current intelligent protection method and system based on frequency analysis

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Publication number Publication date
RU2642137C2 (en) 2018-01-24

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