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The appearance of the power frequency overvoltage in the transmission network
2013 International Conference-Workshop Compatibility And Power Electronics, 2013High voltage transmission network in Bosnia and Herzegovina registered significant values of power frequency overvoltages which lasted quite long. This paper identified levels of temporary overvoltages on the basis of measurement results in an annual period during 2010 in specific points of 220 kV and 400 kV network.
Zijad Bajramovic +3 more
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2025 31st International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)
Zongqian Shi
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Zongqian Shi
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2024 9th Asia Conference on Power and Electrical Engineering (ACPEE)
Changlin Guo +3 more
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Changlin Guo +3 more
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Simulation of Power Frequency Overvoltage of 500kV Parallel Cable Sheath in Single-Ended Grounding
2024 11th International Forum on Electrical Engineering and Automation (IFEEA)Jiayin Bian +6 more
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Power Frequency Overvoltage of UHV Power Transmission Lines
2017Compared to the EHV, the power-frequency overvoltage of the UHV transmission lines is usually more serious, and seriously affecting the power transmission reliability. This chapter first discusses the mechanisms, characteristics, classification, and main influence factors of power-frequency overvoltage of the UHVAC transmission line, then focuses on ...
Hao Zhou, Qiang Yi, Sha Li, Jingzhe Yu
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Application of optical sensors for measurement of high frequency overvoltages in power transformers
2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002For power utilities and the manufacturers of power transformers, the knowledge of very fast transient overvoltages (VFTO) in the network is of great interest. Indeed, the VFTOs contain frequencies far above those arising in conventional open-air substations and may, for example, be associated with faults or resonance in GIS insulation or in the ...
D. Chatrefou, M. Pristchepa, D. Uhde
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2024 7th Asia Conference on Energy and Electrical Engineering (ACEEE)
Meng Xiangfei, Gong Haoyue, Han Yi
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Meng Xiangfei, Gong Haoyue, Han Yi
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Power frequency overvoltages generated by solar plants
IET Conference Publications, 2009A new kind of overvoltage, not covered by present standards, has been detected in solar plants when switching the inverters off. This power frequency overvoltage can be transmitted to the MV network, giving rise to damages to some pieces of low voltage electronic equipment.
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Reduction of high-frequency transient overvoltages in power stations with generator circuit-breakers
2012 Asia-Pacific Symposium on Electromagnetic Compatibility, 2012Today the use of generator circuit-breakers installed between a generator and the associated step-up transformer is widespread because this offers many advantages with respect to the unit connection (i.e. an arrangement without a generator circuit-breaker) such as simplified operational procedures and better protection of power station equipment ...
D. Braun +3 more
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An Improved Power Transformer High Frequency Model for Transient Overvoltage Studies
2024 IEEE PES 16th Asia-Pacific Power and Energy Engineering Conference (APPEEC)In modern substations, some impinging transient surges may coincide with a power transformer's natural frequencies. This can cause considerable voltage building-up inside the transformer windings and impose significant stresses to the transformer insulation.
Yao, Shijie +2 more
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