Effect of sampling rate and sensor bandwidth on measured transient signals in LV AC and DC power systems

Seferi, Yljon and Arshad and Syed, Mazheruddin H. and Burt, Graeme and Stewart, Brian G. (2022) Effect of sampling rate and sensor bandwidth on measured transient signals in LV AC and DC power systems. In: 2022 IEEE International Workshop on Applied Measurements for Power Systems, 2022-09-28 - 2022-09-30, University of Cagliari. (In Press)

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Abstract

Impulsive transients in power systems can stress the state of electrical insulation of equipment. Knowledge of signal characteristics is of paramount importance to accurately assess their impact on electrical insulation. This paper investigates the effect of sampling rate and sensor bandwidth on capturing high-frequency transient disturbances and their characteristics in laboratory-scale LV AC and DC systems to increase the understanding of their impact on electrical insulation. Two measurement systems of different bandwidths and configurable sampling rates, up to 500 kS/s and up to 250 MS/s, have been used in parallel to capture and compare the high-frequency transient phenomenon in voltage signals following DC series electric arc faults and the AC output of a bi-directional power converter. The presence of unknown high-frequency transient signals of magnitudes more than 10% and more than 600% with respect to the considered voltage of the system were found to exist in AC and DC recorded signals, respectively. Three dependency curves relating the maximum voltage, the rate-of-rise, and the pulse duration of the transients to different sampling rates are experimentally established to provide an improved appreciation of transient characteristics and a better correlation of their impact on the electrical insulation systems.

ORCID iDs

Seferi, Yljon ORCID logoORCID: https://orcid.org/0000-0003-4082-1949, Arshad ORCID logoORCID: https://orcid.org/0000-0001-8621-2773, Syed, Mazheruddin H. ORCID logoORCID: https://orcid.org/0000-0003-3147-0817, Burt, Graeme ORCID logoORCID: https://orcid.org/0000-0002-0315-5919 and Stewart, Brian G.;
  • Item type:Conference or Workshop Item(Paper)
    ID code:81926
    Dates:
    Date
    Event
    1 August 2022
    Published
    1 August 2022
    Accepted
    Notes:© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Keywords:power quality, data acquisition, impulsive transients, electrical insulation, dielectric breakdown, partial discharge, electric arc faults, Electrical Engineering. Electronics Nuclear Engineering, Electrical and Electronic Engineering, SDG 7 - Affordable and Clean Energy
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:18 Aug 2022 14:56
    Last modified:30 Mar 2023 01:53
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/81926
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