Research on the Influence of Closing Resistor inside Circuit Breaker on Magnetizing Inrush Current of UHV Transformer

Abstract:

Using Matlab/Simulink software established the simulation model of UHV transformer and UHV power grid.The characteristic of magnetizing inrush current for UHV transformer was obtained by simulation.The paper also analyzed the impact on differential protection from it. Closing resistor inside circuit breaker method was proposed to restrain magnetizing inrush current.The method cuts down the amplitude and accelerated the attenuation speed of it, so as to restrain it. The simulation analysis verified the effectiveness of the method.

• Periodical: Advanced Materials Research (Volumes 986-987)
• Pages: 2001-2005
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.986-987.2001
• Online since: July 2014
• Authors: Zhen Guo*, Hui Yuan Zhang, Bo Wang, Ren Min Gong, Yong Hao Zhang
• Keywords: Closing Resistor, Magnetizing Inrush Current, Simulation Analysis, UHV Transformer

References

[1] W.L. Zhang W.L. Wu and Y. Hu: Research on UHV transmission technology and development of power network in China, High Voltage Engineering, Vol. 29(2003)No. 9, pp.16-18.

[2] R.H. Zhang: Study on technology of inrush currentidentifying and restraining for transformer(MS. ChongQing University, China 2012), pp.24-26.

[3] Z.G. Hao B.H. Zhang and Y.L. Chu, et al: Study on inrush current restraining technology when energizing no-load transformer, High Voltage Apparatus, vol. 41(2005)No. 2, pp.81-84.

[4] B.H. Zhang X.G. Yin: Power System Protective Relaying(Second edition)(China Electric Power Press, China 2009).

[5] Z.M. Wu,H.L. Quan and Y.H. Du, et al: Research on restraining strategy of transformer inrush current based on series of closing resistor, Electrotechnical Application, Vol. 30(2011)No. 15, pp.56-60.

[6] T.M. Yang C.L. Shi and X.D. Tan: Autotransformer and its application(China Electric Power Press, China 1987).

[7] J. Zhang: A method for inrush detection in ultra-high voltage transformer(MS. North China Electric Power University, China 2012), pp.92-97.

[8] D.X. Yang D.S. Chen and W, Chen et al: The dynamic physical model of UHV AC transmission system, Automation of Electric Power System, Vol. 32(2008)No. 22, pp.36-40.

[9] L.J. Zeng X.N. Lin and J.G. Huang, et al: Modeling and electromagnetic transient simulation of UHV autotransformer, Proceedings of the CSEE, Vol. 30(2010)No. 1, pp.91-97.

[10] Z.L. Wang H.D. Duan and Y.F. Gao, et al: Matlab application technology is in the application of electrical engineering and automation(Tsinghua University Press, China 2007).

[11] J.M. Lin X.G. Wang and L.G. Ban, et al: Resonance overvoltage caused by energizing no-load transformer in 1000 kV transmission system, Power System Technology, Vol. 31(2007)No. 2, p.5.