Thermal profiles of high-voltage capacitor units

Mackinnon, Calum J. and Stewart, Brian G. (2019) Thermal profiles of high-voltage capacitor units. In: Annual Conference on Electrical Insulation and Dielectric Phenomena (2019), 2019-10-20 - 2019-12-23, Pacific Northwest National Laboratory. (https://doi.org/10.1109/CEIDP47102.2019.9009725)

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Abstract

High voltage capacitors are useful in power factor correction, harmonic filtering, energy storage and voltage support for modern electrical power systems. Even modest failure rates can be compounded by large numbers of assets deployed in high capacity installations, and as fuses are positioned internally or omitted in pursuit of more efficient capacitor designs, it becomes increasingly challenging to identify the location of a faulted element within a module. This paper investigates detectability of an internal heat source from distributions of temperature on a capacitor unit’s outer housing. A model of a high voltage capacitor module is presented and is used to simulate the propagation of thermal energy from a heat source sited at select positions within a unit to a steel enclosure. Resultant heat distributions are shown to be readily influenced by foil arrangement and heat source location within a capacitor, since foils both direct and contain heat.

  • Item type:Conference or Workshop Item(Paper)
    ID code:70813
    Dates:
    Date
    Event
    20 October 2019
    Published
    2 August 2019
    Accepted
    Notes:© 2019 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.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:11 Dec 2019 15:18
    Last modified:09 Apr 2024 06:45
    URI:https://strathprints.strath.ac.uk/id/eprint/70813
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