Relevant bibliographies by topics / Earthing switch

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Earthing switch'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Earthing switch"

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Krčum, Maja, Marko Zubčić, and Tatijana Dlabač. "Electromechanical Analysis of the Medium Voltage Earthing Switch due to Short-Time and Peak Withstand Current Test." Energies 12, no. 16 (August 20, 2019): 3189. http://dx.doi.org/10.3390/en12163189.

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The chosen electrical equipment, i.e., the earthing switch has its application in marine switchgear. In this paper, the reduction of dimensions is considered with the purpose of making it more energy efficient in terms of onboard application. This test validates that the earthing switch as an electromechanical device is capable of withstanding electrodynamic forces. Two approaches are applied and compared. Both approaches are based on a simplified three-dimensional (3D) model of the earthing switch. The first approach is analytical: the electrodynamic forces are calculated with the assumption that currents flow in concentrated lines. Maximum static stress is compared to the yield point of the earthing knife material. The second approach applies the finite element method in the time domain. The results show that the rectangular cross-section can withstand the electrodynamic forces produced by the given currents. Simple cost analysis shows how much material is saved by changing the design from standard earthing knifes with C channel profile to the rectangular profile. Material savings make this study interesting for marine switchgear application. The paper shows qualitative influence of the obtained results on the Energy Efficiency Design Index of the ships.
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Rodrigo, H. "A 40 kV high-power earthing switch." Measurement Science and Technology 6, no. 11 (November 1, 1995): 1612–16. http://dx.doi.org/10.1088/0957-0233/6/11/009.

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Tu, Zhi Yu. "About how to Optimize Earthing Switch Circuit Bar." Advanced Materials Research 1055 (November 2014): 283–86. http://dx.doi.org/10.4028/www.scientific.net/amr.1055.283.

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This article analyzes the circuit bar of EarthingSwitch (ES), identify the function of grounding system, clarify the different function between grounding system and rated current path. It provides an efficient method to design circuit bar for grounding system. The article collects the practical formula to design and to evaluate Copper bar. The recommended size for the ES and main grounding bar is referable for electric company.
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Takakura, Hidetoshi, and Atsushi Okahara. "Switching Capabilities of SF6 Gas Disconnecting Switch and Earthing Switch." IEEJ Transactions on Power and Energy 110, no. 10 (1990): 805–10. http://dx.doi.org/10.1541/ieejpes1990.110.10_805.

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Bojic, P. "High-Speed Earthing Switch in Gasinsulated Metal-Enclosed Switchgear." IEEE Power Engineering Review 21, no. 11 (November 2001): 59–60. http://dx.doi.org/10.1109/mper.2001.4311168.

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Bojic, P. "A high-speed earthing switch in gas-insulated metal enclosed switchgear." IEEE Transactions on Power Delivery 17, no. 1 (2002): 117–22. http://dx.doi.org/10.1109/61.974197.

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Mizoguchi, Hitoshi, Katsumi Suzuki, and Hisatoshi Ikeda. "Study of High Current Interruption by Disconnector and by Earthing Switch in GIS." IEEJ Transactions on Power and Energy 112, no. 11 (1992): 987–96. http://dx.doi.org/10.1541/ieejpes1990.112.11_987.

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Mikheev, Georgi M., and Ayrat G. Ziganshin. "THE DIGITALIZATION OF SUBSTATIONS BY CREATING A 6-35 kV SWITCHING DEVICESCONTROL SYSTEM FROM THE AUTOMATED WORKPLACE." Vestnik Chuvashskogo universiteta, no. 1 (March 25, 2021): 78–85. http://dx.doi.org/10.47026/1810-1909-2021-1-78-85.

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The control system of high-voltage switches at one of the substations of the branch of JSC «Grid Company» Buinskie Power Networks is presented in the work. The block control circuit of switching devices from the automated workplace is described. Its specific blocks with the help of which the whole process of switching of high-voltage switches in the switchgear – 10, 35 kV is performed are provided. An explanation of the collection and transfer of information from intelligent electronic devices to the switchgear drive, transmission of control commands, protocol conversion and data exchange with higher levels of automated systems is given. Advantages of the remote control system for 6-35 kV electrical apparatus are shown on the example of the 110/35/10 kV «Verkhny Uslon» substation of the Tatenergo system. The system of remote control of switchgear during its repair and in case of other emergency situations is opened on the example of one of the substations 110/35/10 kV of the Republic of Tatarstan. There are schemes KRUN-10, KRUN-35 kV with an illustration of the positions of electrical apparatus, combined with video surveillance of the state of the switch of a certain cell and the position of the earthing switch of a separate switching device.
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Kang, Min-Cheol, Kyong-Hoe Kim, and Yong Tae Yoon. "Pre-Arcing Time Prediction in a Making Test for a 420 kV 63 kA High-Speed Earthing Switch." Energies 10, no. 10 (October 12, 2017): 1584. http://dx.doi.org/10.3390/en10101584.

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SUZUKI, Haruka, Gaku ASANUMA, Yuji HAYASE, Keisuke YAMASHIRO, Masaru ISOZAKI, and Toshiyuki ONCHI. "Investigation of Earthing Switch Structure with Contact Stress Analysis and Magnetic Field Analysis by Modeling of Current-Carrying Contacts." Proceedings of Design & Systems Conference 2018.28 (2018): 2601. http://dx.doi.org/10.1299/jsmedsd.2018.28.2601.

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Dissertations / Theses on the topic "Earthing switch"

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Odnegård, Joakim. "Fault Impact Mitigation in Grid Connected Converters." Thesis, KTH, Elektrisk energiomvandling, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-107494.

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The present thesis deals with fault impact mitigation in grid connected converters used for High Voltage Direct Current transmission. Certain critical fault cases require additional obstructing protection actions to ease the impact on the converter valves. DC sided faults drives high fault currents through the converters. Single phase to ground faults at the converter AC bus results in overvoltages across the converter valve arms. The phenomenon of these faults are described both for symmetric and asymmetric configurations. Different available solutions are explained and evaluated. Simulations in PSCAD/EMTDC show the impact of the protection measures. A three phase short circuit introduced on the tertiary winding of the transformer is an effective temporary measure against the destructive fault cases. It is shown in this report that a tertiary shortcircuit will greatly reduce the overvoltages after converter bus faults and redirect a large part of the fault currents after DC faults. With the lower voltage on the tertiary winding, it is a suitable connection point for short circuit devices.
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Petrič, Peter. "Návrh uzemňovače 80 kA/3 s pro odpojovač generátoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376995.

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This master thesis is focused on the design of earthing switch for the indoor three pole generator disconnector from IVEP, a.s. The main task of the theoretical part of the master thesis was mechanical and electrical calculations on the contact system and the design of two variants of earthing switch construction. It has been proposed two variants of earthing switch construction. The first variant included three earthing knives for each pole of earthing switch and the other variant included two earthing knives for each pole. The aim of the practical part of this diploma thesis was to create a model of the earthing switch for generator disconnector, to simulate the heating of the contact system by passing the short-circuit current and to prepare the production documentation. For modeling, calculations and simulations were used Autodesk Inventor 2018, Matlab and Ansys Workbench.
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Marcol, Michal. "Kontejnerové NN/VN rozvodny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220174.

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As it is already apparent from a title of my work, I will be engaged in proposal of container VN/NN distributor using components from company ABB. This work will be after final making also used by company ABB to simplify procedure of proposal of any kind of container distributor. In my labor I will be generally deal with individual products, which will after that be used in distributor. Next I will be engaged in particular making of distributor, which should be made. The distributor will be designed for a separate part of the transformer and for a transformer as a unit, which is not separated from substation.
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Book chapters on the topic "Earthing switch"

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Fan, Guangwei, Lei Yang, Changgeng Han, Zhaoyang Zhang, and Gang Li. "Improvement Method and Test Analysis of High Voltage AC Earthing Switch Switching Induced Current Capability." In Lecture Notes in Electrical Engineering, 823–32. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-31680-8_80.

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Peelo, David. "Disconnecting Switches and Earthing Switches." In Switching Equipment, 295–323. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72538-3_9.

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Atwa, Omar Salah Elsayed. "Disconnecting Switches and Earthing Switches Theory Testing and Commissioning." In Practical Power System and Protective Relays Commissioning, 133–39. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-816858-5.00012-5.

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Conference papers on the topic "Earthing switch"

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Valenta, Jiri, David Simek, Lukas Dostal, Petr Kloc, Frantisek Koudelka, and Martin Grycz. "Simulation of earthing switch behavior and its test verification." In 2020 21st International Scientific Conference on Electric Power Engineering (EPE). IEEE, 2020. http://dx.doi.org/10.1109/epe51172.2020.9269210.

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Jiaxin, Liu, Wang Yanan, Lang Yexing, Wei Defu, Ma Yiling, and Li Guanhua. "Acousto-Optic Combined Detection Technique for Partial Discharge Defect of Earthing Switch." In 2018 International Conference on Sensing,Diagnostics, Prognostics, and Control (SDPC). IEEE, 2018. http://dx.doi.org/10.1109/sdpc.2018.8665010.

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Zanetti, A., and J.-C. Mauroux. "Current Carrying Capacity of an Earthing Switch for a Generator Circuit Breaker." In 2018 IEEE Holm Conference on Electrical Contacts. IEEE, 2018. http://dx.doi.org/10.1109/holm.2018.8611665.

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Gentsch, D., T. Fugel, and G. Salge. "New Ultra Fast Earthing Switch (UFES) device based on the vacuum switching principle." In 2010 24th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV). IEEE, 2010. http://dx.doi.org/10.1109/deiv.2010.5625811.

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Cheng-bo, Jiang, Zhu Yan-qing, Yuan Duan-lei, Zhu Zhi-hao, Hu Jing-jing, and Ma Ming-le. "Experimental investigation between short circuit making performance and closing speed of direct acting earthing switch." In 2017 4th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST). IEEE, 2017. http://dx.doi.org/10.1109/icepe-st.2017.8188901.

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Biasse, Jean-Marc, Andrea Mengo, and Gang Wang. "Knowing status of an earthing switch in MV switchgear, contact visibility or positive mechanical indication?" In 2012 China International Conference on Electricity Distribution (CICED). IEEE, 2012. http://dx.doi.org/10.1109/ciced.2012.6508715.

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Psotta, T., V. Hinrichsen, and B. Lutz. "Breaking Capacity of Disconnectors and Earthing Switches Operated in Alternative Gases." In 2018 IEEE International Conference on High Voltage Engineering and Application (ICHVE). IEEE, 2018. http://dx.doi.org/10.1109/ichve.2018.8641761.

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FAN, Guangwei, Shi HUANG, Gang LI, Sili YAO, and Haojun LIU. "Introduction and Test Analysis of the Disconnector and Earthing Switches of SF6/N2 Mixed Gas in GIS." In 2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST). IEEE, 2019. http://dx.doi.org/10.1109/icepe-st.2019.8928674.

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Stell, R. W. Benjamin. "A Review of Current Standards and Codes for Maximum Permissible Rail Voltage Rise on Direct Current Traction Power Systems." In 2011 Joint Rail Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/jrc2011-56121.

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The negative return portion of a modern direct current (dc) traction power system, which includes the tracks (the running rails), is normally isolated from earth to the maximum extent practical. The purpose of this isolation is to prevent stray dc currents from flowing through the earth and potentially causing corrosion of nearby metallic infrastructure. The isolation of the tracks from the earth is not perfect. Each track tie and insulated rail fastener assembly can be electrically represented as a resistor of high ohmic value connected between the rails and the earth. With many of these resistors in parallel over miles of track, a distributed “leakage resistance” is established between the rails and earth. For modern dc traction power systems in particular, however, this resistance is high enough for the rails to be considered essentially ungrounded with respect to local electrical ground (earth). The lack of an intentional connection between the tracks and earth allows voltage differences to occur along the rails, and between the rails and nearby structures. These voltage differences are caused by the flow of current through the running rails back to the substations. Since the shells of rail vehicles are typically at the same voltage as the wheels and rails, this voltage difference could be impressed on a passenger entering or exiting a train from a grounded platform. Or they could be impressed on a person walking along the tracks. In the USA, these voltage differences have generally been limited through system design; North American standards for substation grounding are referenced for design purposes, in particular IEEE Standard 80, Guide for Safety in Substation Grounding. In Europe, a standard has been developed specifically to address control of voltages between rails and structures, BS EN 50122-1 (IEC 62128-1), Railway Applications – Fixed Installations – Part 1: Protective Provisions Relating to Electrical Safety and Earthing. Voltage-limiting equipment that can be installed in passenger stations and other accessible locations has been developed in response to the requirements of EN 50122-1. These devices quickly connect the running rails to the station structure to eliminate unsafe voltage differences. If an earth fault occurs (broken catenary conductor falling on the ground, for example), there may not be a low-resistance circuit back to the substation due to the electrical isolation between running rails and earth ground. Without a low-resistance path back to the substation, there may be a resulting low-level short circuit current flow insufficient to operate the substation protective systems. As a result, the area in the vicinity of the fault may potentially be elevated to unsafe voltage levels. Equipment intended to detect this condition and connect the substation negative dc bus to the substation grounding grid is gradually being incorporated into modern North American dc traction power substation design. These devices are known by several names such as “substation grounding contactors”, “automatic grounding switches”, and “negative grounding devices”. Devices built to comply with EN 50122-1 are termed “Voltage Limiting Devices”. EN 50122-1 includes voltage-time curves that dictate the maximum permissible magnitudes and durations for ac and dc voltages; equipment built to EN 50122-1 must clamp the highest voltages in no more than 20 milliseconds. This paper will review current American and European standards and codes for maximum permissible rail voltage on direct current traction power systems. The maximum permissible voltage levels will be explained and compared. The principles of negative grounding device operation and corresponding voltage settings will also be discussed.
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