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However, various multipaths within a broadband power-line communication BPLC system exist due to stochastic changes in the network load impedances, branches, etc. It is found that the arc root movement along the electrode surfaces pantograph-contact wire is governed by the relative motion and polarity of the electrodes. Publications by Rajeev Thottappillil. It is found that when a branch is added in the link between the sending and receiving end, there is an average of 4-dB power loss. Joseph Fitzgerald," Journal of Geophysical Researchvol. There are a total of just over 15, first and second level students and more than 1, doctoral students. Anatory et al. KTH has almost 4, employees. Job Description The prerequisites of owning and operating power distribution systems have radically changed over the past years and further changes will occur in the future followed by e.

  • KTH Rajeev Thottappillils publications
  • Thottappillil, Rajeev
  • PhD in Electrical Engineering, KTH Royal Institute of Technology, Stockholm Mladiinfo
  • Rajeev Thottappillil Google Scholar Citations

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    KTH Rajeev Thottappillils publications

    Uman and N. Thottappillil, "Review of lightning properties from electric field and TV observations," Journal of Geophysical Research: Atmospheresvol.

    It is also discussed how the presence of an ice layer influences the arcing and the dc components. Rakov et al.

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    D11, pp.

    KTH has almost 4, employees. The School of Electrical Engineering conducts research and education in the fields of electrical engineering, information and communication technology, systems engineering, electrical power engineering, and plasma physics.

    This paper attempts to investigate the performance of indoor channels of a BPLC system that uses orthogonal frequency-division multiplexing OFDM techniques. On the contrary for a coded system when the branches were terminated either in low or higher impedances compared to branch characteristic impedances the improvement was greater than dB.

    As a doctoral student, you will develop quantitative risk-based analyses methods for the investment planning of power distribution to better handle all new conditions.

    Miki et al.

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    Rajeev Thottappillil of KTH Royal Institute of Technology, Stockholm (KTH) | Read Surface Charge and Hydrophobicity Levels of Insulating Materials . Electromagnetic fields from lightning can couple to electrical systems and produce.
    Uman and N. Job Description The prerequisites of owning and operating power distribution systems have radically changed over the past years and further changes will occur in the future followed by e.

    The three characteristics of a facility, the accessibility, susceptibility, and consequence, are discussed in the context of vulnerability to IEMI.

    Non-peer reviewed. D12, pp. Rakov, M.

    Thottappillil, Rajeev

    Zhou, R.

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    D16, The findings presented in this paper could be beneficial for coming up with appropriate mitigation techniques from the EMI due to pantograph arcing in dc-fed traction systems.

    The PhD project will take place within the RCAM Reliability Centred Asset Management research group at the department of Electromagnetic Engineering in close collaboration with the power industry and other researchers. Midya et al. Joseph Fitzgerald," Journal of Geophysical Researchvol. It is found that when a branch is added in the link between the sending and receiving end, there is an average of 4-dB power loss. This situation is also observed when the number of branches increases.

    Study on characterization of electrical contact between pantograph and catenary.

    PhD in Electrical Engineering, KTH Royal Institute of Technology, Stockholm Mladiinfo

    contacts from pantograph–catenary system for power supply of electric vehicles. Mag., 10–13 () Midya, S., Bormann, D., Schutte, T., Thottappillil, R. S. Midya, D. Bormann, T. Schutte, and R. Thottappillil, “Pantograph arcing in Part I: with DC traction power supply?,” IEEE Trans. on Power Delivery, vol.

    Rajeev Thottappillil Google Scholar Citations

    24, no. Electrical Traction Limin Jia, Yong Qin, Jianguo Suo, Jianghua Feng, Lijun Diao, Liu Y, Zitnik M, Thottappillil R () An improved transmission-line model of 43(3)– Simulation Model of Direct Power Supply System with Return.
    Influences of different parameters on dc traction system, such as supply-voltage polarity, relative motion between pantograph and overhead contact wire, namely, forward motion along the track longitudinaland lateral sliding motion of the pantograph zigzag are presented here.

    It is also discussed how the presence of an ice layer influences the arcing and the dc components. This situation is also observed when the number of branches increases.

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    Diendorfer, "A new approach to calculate electric fields and charge density distribution when lightning strikes a tall object," Electric power systems researchvol. D9, pp. Pantograph arcing in ac traction system generates transients, and causes asymmetries and distortion in supply voltage and current waveforms.

    PhD positions are intended for those who pursue their own doctoral studies.

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    KTH in Stockholm is the largest and oldest technical university in Sweden. Theethayi, "TEM field structure of electric and magnetic fields from a semi-infinite vertical thin-wire antenna above a conducting plane," in Ultra-Wideband, Short-Pulse Electromagnetics 7, Sabath, F.

    Knowledge of electrical distribution systems, applied mathematical statistics, optimization, and economics is meritorious. It is found that the arc root movement along the electrode surfaces pantograph-contact wire is governed by the relative motion and polarity of the electrodes.

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    Uman, "Lightning return stroke model with height-variable discharge time constant," Journal of Geophysical Research - Atmospheresvol.

    Comments (1)

    1. Kir

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      From the voltage and current waveforms of the test runs, it is shown that pantograph arcing is a polarity-dependent phenomenon. D5, pp.