Добірка наукової літератури з теми "Switching transient overvoltages"
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Статті в журналах з теми "Switching transient overvoltages"
Keitoue, Samir, Ivan Murat, Božidar Filipović-Grčić, Alan Župan, Ivana Damjanović, and Ivica Pavić. "Lightning caused overvoltages on power transformers recorded by on-line transient overvoltage monitoring system." Journal of Energy - Energija 67, no. 2 (June 2, 2022): 44–53. http://dx.doi.org/10.37798/201867279.
Повний текст джерелаFurgał, Jakub, Maciej Kuniewski, and Piotr Pająk. "Analysis of Internal Overvoltages in Transformer Windings during Transients in Electrical Networks." Energies 13, no. 10 (May 22, 2020): 2644. http://dx.doi.org/10.3390/en13102644.
Повний текст джерелаPannila, Earl A. R. L., and Mahesh Edirisinghe. "Signatures of Transient Overvoltages in Low Voltage Power Systems in Tea Factories and Their Implications on Insulation Deterioration and Allied Power Quality Issues." Journal of Electrical and Computer Engineering 2021 (November 19, 2021): 1–12. http://dx.doi.org/10.1155/2021/2623965.
Повний текст джерелаLeman, Jon T., and Robert G. Olsen. "Bulk FDTD Simulation of Distributed Corona Effects and Overvoltage Profiles for HSIL Transmission Line Design." Energies 13, no. 10 (May 14, 2020): 2474. http://dx.doi.org/10.3390/en13102474.
Повний текст джерелаGirgis, A. A., C. M. Fallon, J. C. P. Rubino, and R. C. Catoe. "Harmonics and transient overvoltages due to capacitor switching." IEEE Transactions on Industry Applications 29, no. 6 (1993): 1184–88. http://dx.doi.org/10.1109/28.259731.
Повний текст джерелаSadeghkhani, Iman, Abbas Ketabi, and Rene Feuillet. "The Study of Switching Overvoltages under Power System Restoration Scenario Using Extended Delta-Bar-Delta Algorithm." International Journal of Emerging Electric Power Systems 14, no. 3 (June 19, 2013): 219–30. http://dx.doi.org/10.1515/ijeeps-2012-0003.
Повний текст джерелаSchwarz, K. K. "Transient switching overvoltages and compatibility of rotating machine insulation." Power Engineering Journal 1, no. 1 (1987): 43. http://dx.doi.org/10.1049/pe:19870008.
Повний текст джерелаHanus, Oleksii, and Kostiantyn Starkov. "STUDY OF THE NATURE OF OVERVOLTAGES IN THE ELECTRICAL NETWORK ARISING FROM VOLTAGE TRANSFORMERS." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 1 (2) (July 2, 2021): 28–36. http://dx.doi.org/10.20998/2224-0349.2021.01.05.
Повний текст джерелаBarzkar, Ashkan, and Mona Ghassemi. "Precise Evaluation of Repetitive Transient Overvoltages in Motor Windings in Wide-Bandgap Drive Systems." Vehicles 4, no. 3 (July 19, 2022): 697–726. http://dx.doi.org/10.3390/vehicles4030040.
Повний текст джерелаKaczmarek, Michał, and Dariusz Brodecki. "Transformation of Transient Overvoltages by Inductive Voltage Transformers." Sensors 21, no. 12 (June 17, 2021): 4167. http://dx.doi.org/10.3390/s21124167.
Повний текст джерелаДисертації з теми "Switching transient overvoltages"
Ramli, Mohd Shamir. "Investigation of circuit breaker switching transients for shunt reactors and shunt capacitors." Thesis, Queensland University of Technology, 2008. https://eprints.qut.edu.au/17822/1/Mohd_Shamir_Ramli_Thesis.pdf.
Повний текст джерелаRamli, Mohd Shamir. "Investigation of circuit breaker switching transients for shunt reactors and shunt capacitors." Queensland University of Technology, 2008. http://eprints.qut.edu.au/17822/.
Повний текст джерелаFelicetti, Roberto. "Voltage Transients in the Field Winding of Salient Pole Wound Synchronous Machines : Implications from fast switching power electronics." Licentiate thesis, Uppsala universitet, Elektricitetslära, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-434652.
Повний текст джерелаGregory, Raquel Cristina Filiagi. "Análise computacional do desempenho de estratégia para o religamento controlado de linhas de transmissão." Universidade Federal de Uberlândia, 2016. https://repositorio.ufu.br/handle/123456789/17617.
Повний текст джерелаA busca por soluções mitigatórias, no que tange aos efeitos das sobretensões transitórias atreladas às manobras de energizações e religamentos das linhas de transmissão, contemplam um tema desafiador e com fortes impactos sobre a coordenação de isolamento dos sistemas elétricos. Muito embora o reconhecimento de propostas clássicas e comerciais para a atenuação destes fenômenos, outras possibilidades, certamente, ainda são meritórias de destaque e investigações. Neste contexto, a presente dissertação encontra-se alicerçada na exposição dos fundamentos físicos e matemáticos de uma estratégia baseada em chaveamentos controlados, cujos instantes para o religamento da linha são pré-programados. A avaliação computacional da eficácia da metodologia é realizada utilizando o simulador ATP, no qual são efetuados estudos em um sistema elétrico típico submetido à curtos-circuitos sucedidos por desligamentos e subsequentes religamentos, sob a ação da tecnologia aqui focada e na ausência da mesma.
The search for mitigation solutions, with respect to the effects of overvoltages linked to the energization and reclosing maneuvers of transmission lines include a challenging subject with strong impact on the insulation coordination of electrical systems. Although the recognition of classical and commercial proposals to mitigate these phenomena, other possibilities are certainly still worthwhile highlighting and investigations. In this context, the present work is grounded in the exposure of the physical and mathematical foundations of a strategy based on controlled switchings, whose moments to the line reclosing are pre-programmed. The computational evaluation of the effectiveness of the methodology is made using the ATP simulator, which are studies in a typical electrical system subjected to the action of short-circuits fallowed by shutdowns and subsequent reclosing, under the action of technology here focused and lack thereof.
Dissertação (Mestrado)
Ezzeddine, Kassem, and Robert Oskarsson. "Analys av kondensatorbatteriers tillkopplingsfenomen : Undersökning av de kopplingsfenomen som uppstår vid tillkoppling av kondensatorbatterier och deras påverkan på närliggande komponenter." Thesis, KTH, Data- och elektroteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-208948.
Повний текст джерелаMany electrical devices need reactive power to operate. Transmission of reactive power occupies a proportion of the available capacity in the power system and therefore capacitor banks are used near to the end user to generate reactive power. Thus, the reactive effect is generated and consumed in a separate part of the power system. Capacitor banks switching causes transients which may damage the surrounding components. Based on the real substation Stallbacka in Trollhättan, this study has analysed capacitor banks switching transients within the medium voltage level. The analysis has covered the size of these transients according to different conditions and scenarios. The result showed that the transients in this case never reached serious levels, thus there was no impact on the components. It is not clear whether the transients affect the power quality because there are no defined limits. A calculation tool to the predicted transients was supposed to be created in the process. This calculation tool was never completed due to the unmanageable solution that was obtained.
Khandelwal, Sulabh. "Artificial Neural Networks Approach For Estimation Of Line Energization Peak Transient Overvoltages During Restoration." Thesis, 2005. http://etd.iisc.ernet.in/handle/2005/1433.
Повний текст джерела(9826433), Rodney Peters. "Transient overvoltages in mine power systems." Thesis, 1998. https://figshare.com/articles/thesis/Transient_overvoltages_in_mine_power_systems/20341575.
Повний текст джерелаThis thesis investigates the nature and magnitude of switching transient overvoltages that can be expected in inductively grounded underground coal mines. Computer models of power system equipment have been developed to analyse single-phase fault isolations; motor starts (including prestriking) and motor turn offs. The computer models that were developed have been validated against field recordings. The "Alternative Transients Program" (ATP) software was used to conduct the computer simulation studies.
The underground substations used in Central Queensland coal mines are grounded through a Neutral Earthing Reactor (NER). The primary purpose of a NER is to limit earth fault currents. However, when a single -phase -to -ground fault occurs, energy is stored in the NER. Consequent to the isolation of such a fault, the energy stored in the NER is released. The release of this energy manifests itself as a transient overvoltage. This thesis investigates the effect of the rating of the NER and the value of the electric current at the instant of earth fault isolation on transient overvoltages.
Two alternate earthing schemes were investigated in an attempt to reduce the severity of the transient overvoltages consequent to the isolation of earth faults. The first alternative that was investigated was the addition of a Resistor -Capacitor Snubber in parallel with a NER. Computer simulations indicate that the proper choice of Snubber parameters is very effective in reducing transient overvoltages following the isolation of earth faults. Consequently, a decision was made to manufacture a R -C Snubber and conduct field tests on the same. A summary of the field tests results has been included in the thesis.
The other alternate grounding scheme that was investigated was the substitution of a Neutral Earthing Reactor with a Neutral Earthing Resistor. Computer simulations indicate that transient overvoltages following the isolation of earth faults are virtually eliminated if a Neutral Earthing Resistor is used.
Consequent to this research work, the use of R -C Snubbers has become a recommended practice at various coal mine sites in Australia which use NER grounded, container type substations. The R -C Snubber is the preferred alternative at such installations as it is very compact and also eliminates the heating/reliability problems associated with resistance grounding.
Vacuum contactors are used throughout the Central Queensland mines to frequently turn motors on and off. One of the most significant characteristics of vacuum contactors is their ability to interrupt high frequency currents. The consequence of this is that a considerable number of high frequency prestriking transients can be generated whenever a motor is turned on. These high frequency transients can lead to the premature aging of insulation. This thesis presents a computer model that was developed to simulate prestriking transients using the TACS (Transient Analysis of Control Systems) programming feature of the ATP software. Further investigation of prestriking transients was considered to be beyond the scope of the present research project. However, the unique TACS based prestriking model of a vacuum contactor that has been developed will be a useful tool for conducting further research.
"Investigating Transient Overvoltage Produced by Switching Action on Long Transmission Lines and Its Effect on Substations." Master's thesis, 2018. http://hdl.handle.net/2286/R.I.51756.
Повний текст джерелаDissertation/Thesis
Masters Thesis Electrical Engineering 2018
Тези доповідей конференцій з теми "Switching transient overvoltages"
Azevedo, L. C., I. P. Faria, and G. P. Lopes. "Switching transient overvoltages analysis on 500 kV transmission line." In 2018 Simposio Brasileiro de Sistemas Eletricos (SBSE) [VII Brazilian Electrical Systems Symposium (SBSE)]. IEEE, 2018. http://dx.doi.org/10.1109/sbse.2018.8395818.
Повний текст джерелаLiao, Yanqun, Tingxi Sun, Dai Cao, Xuezhong Liu, Hao Liu, and Man Xu. "Numerical analysis of transient overvoltages from sequential switching of 220 kV tunnel cables." In 2017 4th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST). IEEE, 2017. http://dx.doi.org/10.1109/icepe-st.2017.8189007.
Повний текст джерелаYang, Xiao, Fang Chun-en, Chen Chuanjiang, Li Wei, Zhang Bi-de, and Ren Xiao. "Study on high-frequency transient overvoltages protection in offshore wind farms based on RC snubbers." In 2017 4th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST). IEEE, 2017. http://dx.doi.org/10.1109/icepe-st.2017.8188994.
Повний текст джерелаSabin, D. D., T. E. Grebe, D. L. Brooks, and A. Sundaram. "Rules-based algorithm for detecting transient overvoltages due to capacitor switching and statistical analysis of capacitor switching in distribution systems." In 1999 IEEE Transmission and Distribution Conference (Cat. No. 99CH36333). IEEE, 1999. http://dx.doi.org/10.1109/tdc.1999.756124.
Повний текст джерелаKu, Bih-Yuan, and Yuan Tai Hsu. "AC Electrified Rail Train Converter Switching Overvoltage Transients Study." In 2009 Joint Rail Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/jrc2009-63030.
Повний текст джерелаDianchun Zheng, Zhonglin Zhang, Shihua Zhu, and Xiuquan Zhai. "Numerical analysis of very fast transient overvoltage in GIS." In 2011 1st International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST). IEEE, 2011. http://dx.doi.org/10.1109/icepe-st.2011.6122929.
Повний текст джерелаShanshan Yang and Gregory A. Franklin. "Effects of segmented shield wires on switching transient overvoltage study." In SOUTHEASTCON 2012. IEEE, 2012. http://dx.doi.org/10.1109/secon.2012.6196892.
Повний текст джерелаHuamao Zhan, Shaofeng Duan, Linzhi Yao, and Lin Zhao. "Influence of switching properties of the disconnector on very fast transient overvoltage." In 2017 IEEE Electrical Insulation Conference (EIC). IEEE, 2017. http://dx.doi.org/10.1109/eic.2017.8004674.
Повний текст джерелаShanshan Yang and Gregory A. Franklin. "Switching transient overvoltage study simulation comparison using PSCAD/EMTDC and EMTP-RV." In SOUTHEASTCON 2012. IEEE, 2012. http://dx.doi.org/10.1109/secon.2012.6196891.
Повний текст джерелаYang, Shanshan, and Gregory A. Franklin. "Switching transient overvoltage study simulation comparison using PSCAD/EMTDC and EMTP-RV." In IEEE SOUTHEASTCON 2013. IEEE, 2013. http://dx.doi.org/10.1109/secon.2013.6567369.
Повний текст джерела