RU2012112129A - METHOD FOR DIAGNOSTIC OF THE STATE OF ELECTRIC RESISTANCE OF RAIL LINES IN RAIL CHAINS AT SITES WITH ELECTRIC AC AC - Google Patents
METHOD FOR DIAGNOSTIC OF THE STATE OF ELECTRIC RESISTANCE OF RAIL LINES IN RAIL CHAINS AT SITES WITH ELECTRIC AC AC Download PDFInfo
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- RU2012112129A RU2012112129A RU2012112129/11A RU2012112129A RU2012112129A RU 2012112129 A RU2012112129 A RU 2012112129A RU 2012112129/11 A RU2012112129/11 A RU 2012112129/11A RU 2012112129 A RU2012112129 A RU 2012112129A RU 2012112129 A RU2012112129 A RU 2012112129A
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- rail
- traction current
- asymmetry
- traction
- thread
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
Способ диагностики состояния электрического сопротивления рельсовых линий в рельсовых цепях на участках с электротягой переменного тока, заключающийся в том, что измеряют падения напряжения на секциях основных обмоток дроссель-трансформаторов, установленных на концах рельсовой цепи, вычисляют тяговые токи в рельсовых нитях на концах рельсовой цепи и коэффициенты их асимметрии, отличающийся тем, что при превышении коэффициентами асимметрии тягового тока их допускаемого значения в начале и/или конце рельсовой цепи дополнительно вычисляют степень уменьшения тягового тока в рельсовых нитях делением величины тягового тока в начале соответствующей рельсовой нити на величину тягового тока в ее конце, а затем сравнением численных значений этих степеней уменьшения тягового тока с характером его асимметрии по концам рельсовой цепи делают заключение о причинах появления повышенной асимметрии тягового тока - если степень уменьшения тягового тока в рельсовых нитях примерно одинакова, а тяговый ток больше в одной из рельсовых нитей в начале и в конце рельсовой цепи, то причиной асимметрии является повышенное сопротивление рельсовых стыковых соединителей в другой рельсовой нити; если же тяговый ток больше втекает в рельсовую нить, к которой подключены цепи заземления опор контактной сети и других конструкций, и быстрее в ней уменьшается, то причиной асимметрии является пониженное сопротивление цепей заземления, а если при этом степень уменьшения тягового тока такова, что в конце рельсовой нити, к которой подключены цепи заземления, тяговый ток оказывается меньше, чем в другой нити, то асимметрия вызывается доA method for diagnosing the state of electrical resistance of rail lines in rail circuits in areas with alternating current electric traction, which consists in measuring voltage drops at sections of the main windings of the choke transformers installed at the ends of the rail circuit, calculating traction currents in rail threads at the ends of the rail circuit and their asymmetry coefficients, characterized in that when the asymmetry coefficients of the traction current exceed their permissible value at the beginning and / or end of the rail circuit, additionally They increase the degree of decrease in traction current in rail threads by dividing the value of traction current at the beginning of the corresponding rail thread by the value of traction current at its end, and then comparing the numerical values of these degrees of decrease in traction current with the nature of its asymmetry at the ends of the rail chain, make a conclusion about the causes of increased asymmetry traction current - if the degree of decrease in traction current in rail threads is approximately the same, and traction current is greater in one of the rail threads at the beginning and at the end of the rail chain, then the reasons minutes asymmetry is increased resistance to rail butt connectors in the other rail thread; if the traction current flows more into the rail thread, to which the ground circuits of the supports of the contact network and other structures are connected, and decreases faster in it, then the asymmetry is caused by the reduced resistance of the ground circuits, and if the degree of decrease in the traction current is such that at the end of the rail thread to which the ground circuits are connected, the traction current is less than in the other thread, then the asymmetry is called up
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2012112129/11A RU2514027C2 (en) | 2012-03-30 | 2012-03-30 | Method of diagnosing state of electrical resistance of rails in track circuits on alternating current traction sections |
Applications Claiming Priority (1)
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RU2012112129/11A RU2514027C2 (en) | 2012-03-30 | 2012-03-30 | Method of diagnosing state of electrical resistance of rails in track circuits on alternating current traction sections |
Publications (2)
Publication Number | Publication Date |
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RU2012112129A true RU2012112129A (en) | 2013-10-10 |
RU2514027C2 RU2514027C2 (en) | 2014-04-27 |
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RU2012112129/11A RU2514027C2 (en) | 2012-03-30 | 2012-03-30 | Method of diagnosing state of electrical resistance of rails in track circuits on alternating current traction sections |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112329211A (en) * | 2020-10-19 | 2021-02-05 | 南方电网科学研究院有限责任公司 | Urban railway conductor section leakage current simulation measurement method based on CDEGS |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2671590C1 (en) * | 2017-11-14 | 2018-11-02 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Российский университет транспорта (МИИТ)" РУТ (МИИТ) | Method of diagnostics of state of grounding circuits on rails of support of contact network |
RU2695438C1 (en) * | 2018-10-12 | 2019-07-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Российский университет транспорта (МИИТ)" РУТ (МИИТ) | Method of measuring electrical resistances in inhomogeneous rail tracks on electrified sections of railways |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2349924C1 (en) * | 2007-08-20 | 2009-03-20 | Государственное образовательное учреждение высшего профессионального образования "Самарский государственный университет путей сообщения" (СамГУПС) | Device to measure rail circuit insulation resistance |
RU109723U1 (en) * | 2011-04-14 | 2011-10-27 | Государственное образовательное учреждение высшего профессионального образования "Московский государственный университет путей сообщения" (МИИТ) | DEVICE FOR MONITORING THE CONDITION OF INSULATING JOINTS IN RAIL CHAINS IN SECTIONS WITH AC ELECTRIC SHOCK |
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2012
- 2012-03-30 RU RU2012112129/11A patent/RU2514027C2/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112329211A (en) * | 2020-10-19 | 2021-02-05 | 南方电网科学研究院有限责任公司 | Urban railway conductor section leakage current simulation measurement method based on CDEGS |
CN112329211B (en) * | 2020-10-19 | 2024-05-10 | 南方电网科学研究院有限责任公司 | Urban rail conductor section leakage current simulation measurement method based on CDEGS |
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RU2514027C2 (en) | 2014-04-27 |
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Effective date: 20150331 |