Thermal profiles of high-voltage capacitor units

Research output: Contribution to conferencePaper

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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.
Original languageEnglish
Number of pages4
Publication statusPublished - 20 Oct 2019
EventIEEE International Conference on Electrical Insulation and Dielectric Phenomena (2019): CEIDP 2019 - Pacific Northwest National Laboratory, Richland, United States
Duration: 20 Oct 201923 Oct 2019
https://ieeedeis.org/ceidp2/

Conference

ConferenceIEEE International Conference on Electrical Insulation and Dielectric Phenomena (2019)
Abbreviated titleCEIDP 2019
CountryUnited States
CityRichland
Period20/10/1923/10/19
Internet address

Fingerprint

Capacitors
Electric potential
Metal foil
Electric fuses
Thermal energy
Enclosures
Energy storage
Hot Temperature
Steel
Temperature

Keywords

  • capacitors
  • fault detection
  • partial discharge

Cite this

Mackinnon, C. J., & Stewart, B. G. (2019). Thermal profiles of high-voltage capacitor units. Paper presented at IEEE International Conference on Electrical Insulation and Dielectric Phenomena (2019), Richland, United States.
Mackinnon, Calum J. ; Stewart, Brian G. / Thermal profiles of high-voltage capacitor units. Paper presented at IEEE International Conference on Electrical Insulation and Dielectric Phenomena (2019), Richland, United States.4 p.
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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.",
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Mackinnon, CJ & Stewart, BG 2019, 'Thermal profiles of high-voltage capacitor units' Paper presented at IEEE International Conference on Electrical Insulation and Dielectric Phenomena (2019), Richland, United States, 20/10/19 - 23/10/19, .

Thermal profiles of high-voltage capacitor units. / Mackinnon, Calum J.; Stewart, Brian G.

2019. Paper presented at IEEE International Conference on Electrical Insulation and Dielectric Phenomena (2019), Richland, United States.

Research output: Contribution to conferencePaper

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N1 - © 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.

PY - 2019/10/20

Y1 - 2019/10/20

N2 - 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.

AB - 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.

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Mackinnon CJ, Stewart BG. Thermal profiles of high-voltage capacitor units. 2019. Paper presented at IEEE International Conference on Electrical Insulation and Dielectric Phenomena (2019), Richland, United States.