Research on Very Fast Transient over-Voltages Distribution in Large Power Transformer Windings

You Hua Gao; Zeng Feng Lai; Xiao Ming Liu; Guo Wei Liu; Ye Wang

doi:10.4028/www.scientific.net/AMR.433-440.7287

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 433-440Research on Very Fast Transient over-Voltages...

Research on Very Fast Transient over-Voltages Distribution in Large Power Transformer Windings

Abstract:

To analyze the transient response of transformer windings under very fast transient over-voltage (VFTO), multi-conductor transmission line (MTL) model based on the representation of transformer windings by its individual turns are established. Space discretization is needed for solving the time-domain telegraph equations of MTL. To calculate the voltage distributions along transformer windings, through combining the compact finite difference (CFD) theory and the backward differentiation formulas (BDF). Simulation software ATP is introduced, and the simulation results demonstrate that the proposed approach is feasible.

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Periodical:

Advanced Materials Research (Volumes 433-440)

Pages:

7287-7292

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.433-440.7287

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Online since:

January 2012

Authors:

You Hua Gao, Zeng Feng Lai, Xiao Ming Liu, Guo Wei Liu, Ye Wang

Keywords:

Power Transformer, Transmission Line Model, Very Fast Transient Over-Voltage

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References

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