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    Field Trials for the Empirical Characterization of the Low Voltage Grid Access Impedance From 35 kHz to 500 kHz

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    URI: http://hdl.handle.net/11556/758
    ISSN: 2169-3536
    DOI: 10.1109/ACCESS.2019.2924253
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    Author/s
    Fernandez, Igor; Arrinda, Amaia; Angulo, Itziar; De La Vega, David; Uribe-Perez, Noelia; [et al.]
    Date
    2019
    Keywords
    Impedance measurement
    Measurement techniques
    Electric variables measurement
    Transmission line measurements
    Communication channels
    Communication networks
    Electromagnetic
    Abstract
    The access impedance of low-voltage (LV) power networks is a major factor related to the performance of the narrow-band power line communications (NB-PLCs) and, in a wider sense, to electromagnetic compatibility (EMC) performance. Up to date, there is still a lack of knowledge about the frequency-dependent access impedance for frequencies above 9 kHz and up to 500 kHz, which is the band where the NB-PLC operates. The access impedance affects the transmission of the NB-PLC signal, and it determines the propagation of the non-intentional emissions that may disturb other electrical devices, including malfunctioning or reduced lifetime of equipment. This paper presents the results of field measurements of the LV access impedance up to 500 kHz in different scenarios, with measurement locations close to end users and near transformers. The results provide useful information to analyze the characteristics of the LV access impedance, including variation with frequency, ranges of values for ...
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