Results 261 to 270 of about 100,090 (288)
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A new compact band‐pass filter based on an asymmetric short‐circuited spurline resonator
Microwave and Optical Technology Letters, 2010AbstractIn this letter, a new compact two‐pole band‐pass filter (BPF) based on an asymmetric short‐circuited spurline resonator is presented. The filter is modeled by means of a new multimodal circuit model for a microstrip to three‐line‐microstrip cross, which allows a rigorous study of a very generic new family of filters.
P. Rodriguez‐Cepeda +6 more
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Short-circuit current of doubly fed induction generator under partial and asymmetrical voltage drop
Renewable Energy, 2016Abstract The doubly fed wind turbine is the main equipment of wind generators. The fault transient characteristics of doubly fed induction generators (DFIG) have elicited the attention of many scholars. However, the short-circuit current (SCC) of power grid-contained DFIG under asymmetrical voltage drop cannot be accurately analyzed.
Jinxin Ouyang +4 more
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Electric Power Systems Research, 1982
Abstract This paper contains a new method for analysing symmetrical and asymmetrical faults at any point in a power system, which may include several synchronous machines connected together with transmission systems. The method is developed by using the symmetrical components, the axial components and a modified compensation theorem.
Esmat H. Badawy, B. Ramsay
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Abstract This paper contains a new method for analysing symmetrical and asymmetrical faults at any point in a power system, which may include several synchronous machines connected together with transmission systems. The method is developed by using the symmetrical components, the axial components and a modified compensation theorem.
Esmat H. Badawy, B. Ramsay
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IEE Proceedings - Electric Power Applications, 2005
A method for transformer design with an asymmetric winding configuration to reduce the inrush current with appropriate voltage regulation and short-circuit current is proposed. Differing from the traditional symmetric winding structure in transformer design, this method can provide the high inrush equivalent inductance and suitable leakage inductance ...
J.-F. Chen +5 more
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A method for transformer design with an asymmetric winding configuration to reduce the inrush current with appropriate voltage regulation and short-circuit current is proposed. Differing from the traditional symmetric winding structure in transformer design, this method can provide the high inrush equivalent inductance and suitable leakage inductance ...
J.-F. Chen +5 more
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OVERVOLTAGE AT THE TRANSFORMER WHEN DISCONNECTING CLOSE ASYMMETRICAL SHORT CIRCUITS
This article examines overvoltages at the inputs of high-voltage (HV) and low-voltage (LV) transformers rated at 110/6 kV and 110/10 kV, focusing on scenarios involving grounded and isolated neutrals during short circuits near the transformers. The study finds that with an isolated neutral, overvoltages resulting from a phase-to-ground short circuit ...Mufidzade, Nahid, Gulgaz Ismayilova
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Journal of Microcomputer Applications, 1988
Abstract The fact that a loss of symmetry in the stator currents of a generator produces a second harmonic component in the field circuit is used in the reported work to detect all asymmetrical faults on the stator side, including inter-turn short-circuits.
H.K. Verma, S.S. Chhajta
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Abstract The fact that a loss of symmetry in the stator currents of a generator produces a second harmonic component in the field circuit is used in the reported work to detect all asymmetrical faults on the stator side, including inter-turn short-circuits.
H.K. Verma, S.S. Chhajta
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Study on the Short-Circuit Current of Asymmetrical AC Fault Near MMC
2022 International Conference on Power Energy Systems and Applications (ICoPESA), 2022Wei Lin, Yi Lin, Yuxin Yan, Chongru Liu
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2019 6th International Conference on Soft Computing & Machine Intelligence (ISCMI), 2019
Asymmetrical three-phase short circuit faults occur more often than symmetrical three-phase short circuits faults. The asymmetrical three-phase short circuit faults can be line-to-line faults, double line-to-earth faults or line-to-earth faults. Symmetric components technique and computer methods like time-domain fault analysis as well as quasi steady ...
Chikomborero Shambare +2 more
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Asymmetrical three-phase short circuit faults occur more often than symmetrical three-phase short circuits faults. The asymmetrical three-phase short circuit faults can be line-to-line faults, double line-to-earth faults or line-to-earth faults. Symmetric components technique and computer methods like time-domain fault analysis as well as quasi steady ...
Chikomborero Shambare +2 more
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2016 Second International Innovative Applications of Computational Intelligence on Power, Energy and Controls with their Impact on Humanity (CIPECH), 2016
Short circuit electromagnetic (EM) forces are considered as important factor and should be taken care of while designing a transformer. The effect of forces is more important in case of large transformers, but the procedure of analysis of forces is same for both power transformers and power distribution transformers.
Anupam Sinha, Sarpreet Kaur
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Short circuit electromagnetic (EM) forces are considered as important factor and should be taken care of while designing a transformer. The effect of forces is more important in case of large transformers, but the procedure of analysis of forces is same for both power transformers and power distribution transformers.
Anupam Sinha, Sarpreet Kaur
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2016
This chapter develops investigation methods for active U-shaped chain (recurrent) circuits of various structures in relation to designs of short-circuited rotor windings of large A.C. machines; EMFs of links vary with link number under a certain law, for example, harmonic one.
Iliya Boguslawsky +2 more
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This chapter develops investigation methods for active U-shaped chain (recurrent) circuits of various structures in relation to designs of short-circuited rotor windings of large A.C. machines; EMFs of links vary with link number under a certain law, for example, harmonic one.
Iliya Boguslawsky +2 more
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