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IEEE Journal of Emerging and Selected Topics in Power ElectronicsNo descrinverter-fed motors are vulnerable to premature insulation failure due to overvoltage stress across stator windings because of antiresonance phenomenon which is characterized by two oscillatory overvoltage responses that manifest at the motor ...
Mohamed Diab, Xibo Yuan
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Frequency content of switching overvoltages
Proceedings of the Institution of Electrical Engineers, 1976Switching overvoltages are usually discussed in terms of their peak values, but their frequency content is also important. The relevant frequencies have now been analysed for certain field-test waveforms as well as for calculated voltage transients that result from energising a single line.
D.F. Binns, H. Habibollahi
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Switching overvoltages in motor circuits
IEEE Transactions on Industry Applications, 2001The switching of HV motor circuits in the megawatt range can cause large overvoltages on motor terminals. The amplitude of the resulting voltage spikes depends on breaker type and circuit characteristics. If the amplitude of switching overvoltages exceeds the basic insulation level of the motor, overvoltage protection circuitry should be installed to ...
M. Berth, M. Kung, E.F.D.E. Limbeek
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Simulation of Switching Overvoltages and Validation With Field Tests
IEEE Transactions on Power Delivery, 2018On transmission lines where switching surges are not mitigated with closing resistors and/or surge arresters, high-speed reclosing on a line with trapped charge will produce high overvoltages that have been measured above 3 p.u. Careful simulations of these switching events using available electromagnetic transient (EMT) programs consistently produce ...
M. Cervantes +10 more
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Switching overvoltages in a three-phase transformer
[1992] Proceedings of the 35th Midwest Symposium on Circuits and Systems, 2003Switching operations to energize or isolate a transformer result in voltages and currents of complex waveshapes in the transformer windings. The surges transferred to the coupled nonenergized windings when one winding of the transformer is energized are discussed.
C.S. Indulkar, M.S. Thomas, P.R. Bijwe
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Switching Overvoltage of UHVAC Systems
2017The UHV system is featured by high voltage level and large switching overvoltage amplitude. The increase of the rated voltage and the decrease of the limit standard put forward more rigorous requirements for the limitation measures for the switching overvoltage of the UHV system, and the preventive measures for the EHV system are no longer completely ...
Rongrong Ji, Hao Zhou, Xiujuan Chen
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A Laboratory Equipment for Investigating Switching Overvoltages
International Journal of Electrical Engineering & Education, 1983A detailed description is given of a transmission line model and voltage source suitable for demonstrating switching overvoltages associated with overhead line energisation. The model is 3-phase with the supply electronically switched independently in each phase and incorporating switched closing resistors.
D. F. Binns, D. Whitehouse
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Overvoltages caused by disconnect-switch operation
Electrical Engineering, 1959RECENTLY field tests were performed at the Tanners Creek Station of the Indiana and Michigan Electric Company to investigate overvoltages which were produced when a 1,360-foot section of 345-kv bus was de-energized by an air-break disconnecting switch.1 The high transient overvoltages not only caused severe duty on connected lightning arresters, but ...
S. B. Griscom +2 more
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Limitation of transmission line switching overvoltages
2010 IEEE International Conference on Power and Energy, 2010In this paper switching overvoltages of an actual transmission line are studied. Simulations are executed using Electro Magnetic Transients Program. A comprehensive switching transient study is performed for the Azerbaijan province network in Iran. The purpose of this study is to determine the unnecessary pre-insertion resistors in the UHV network ...
Heresh Seyedi, Smko Golabi, Zaher Abam
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A new simulation method of switching overvoltage on shunt capacitors
The 2014 2nd International Conference on Systems and Informatics (ICSAI 2014), 2014Shunt capacitor banks are widely used in reactive power compensation, but the operating over voltage caused by the frequent operation of shunt capacitors would damage the insulated equipment and affect the reliability of power system. For simulating the switching off over voltage of shunt capacitors by vacuum circuit breakers, the model by adding a ...
Liqun Shang, Senfeng Zhang
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