Thermogram Based Indirect Thermographic Temperature Measurement of Reactive Power Compensation Capacitors

An increase in reactive power consumption results in an increase in electricity costs. This negative phenomenon can be prevented by using reactive power compensation methods. One of them is the installation of capacitors. These capacitors are exposed to external conditions, such as temperature and h...

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Main Authors: Arkadiusz Hulewicz, Krzysztof Dziarski, Łukasz Drużyński, Grzegorz Dombek
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/5/2164
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author Arkadiusz Hulewicz
Krzysztof Dziarski
Łukasz Drużyński
Grzegorz Dombek
author_facet Arkadiusz Hulewicz
Krzysztof Dziarski
Łukasz Drużyński
Grzegorz Dombek
author_sort Arkadiusz Hulewicz
collection DOAJ
description An increase in reactive power consumption results in an increase in electricity costs. This negative phenomenon can be prevented by using reactive power compensation methods. One of them is the installation of capacitors. These capacitors are exposed to external conditions, such as temperature and humidity. As a consequence, the aging process occurs. Another negative phenomenon is the corrosion that occurs inside the capacitor as a result of moisture absorption. As a result of this phenomenon, the capacitor can be damaged. One of the symptoms of the ongoing corrosion of the inside of the capacitor is an increase in temperature. Capacitors designed for reactive power compensation operate at mains voltage. They are often placed in a switchgear. For this reason, the use of contact methods of temperature measurement is difficult and dangerous. An alternative is thermographic measurement. Determining the internal temperature of the capacitor by thermographic measurement of the temperature of the case is possible with the use of numerical methods. One of them is FEM (Finite Element Method). The temperature results on the capacitor housing obtained from the simulation work were verified by comparing them with the result of thermographic temperature measurement. Both values differed by 0.2 °C. On the basis of the defined model, the differences between the temperature inside the capacitor housing and the temperature on the capacitor housing were determined by simulation. A simplification was proposed by replacing the cylinder made of layers with a homogeneous cylinder.
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spelling doaj.art-071e3b4b349849a3b9580ed1d7b56cf92023-11-17T07:35:02ZengMDPI AGEnergies1996-10732023-02-01165216410.3390/en16052164Thermogram Based Indirect Thermographic Temperature Measurement of Reactive Power Compensation CapacitorsArkadiusz Hulewicz0Krzysztof Dziarski1Łukasz Drużyński2Grzegorz Dombek3Institute of Electrical Engineering and Electronics, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, PolandInstitute of Electric Power Engineering, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, PolandInstitute of Electric Power Engineering, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, PolandInstitute of Electric Power Engineering, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, PolandAn increase in reactive power consumption results in an increase in electricity costs. This negative phenomenon can be prevented by using reactive power compensation methods. One of them is the installation of capacitors. These capacitors are exposed to external conditions, such as temperature and humidity. As a consequence, the aging process occurs. Another negative phenomenon is the corrosion that occurs inside the capacitor as a result of moisture absorption. As a result of this phenomenon, the capacitor can be damaged. One of the symptoms of the ongoing corrosion of the inside of the capacitor is an increase in temperature. Capacitors designed for reactive power compensation operate at mains voltage. They are often placed in a switchgear. For this reason, the use of contact methods of temperature measurement is difficult and dangerous. An alternative is thermographic measurement. Determining the internal temperature of the capacitor by thermographic measurement of the temperature of the case is possible with the use of numerical methods. One of them is FEM (Finite Element Method). The temperature results on the capacitor housing obtained from the simulation work were verified by comparing them with the result of thermographic temperature measurement. Both values differed by 0.2 °C. On the basis of the defined model, the differences between the temperature inside the capacitor housing and the temperature on the capacitor housing were determined by simulation. A simplification was proposed by replacing the cylinder made of layers with a homogeneous cylinder.https://www.mdpi.com/1996-1073/16/5/2164capacitorFEMthermal conductivitytemperature distribution thermography
spellingShingle Arkadiusz Hulewicz
Krzysztof Dziarski
Łukasz Drużyński
Grzegorz Dombek
Thermogram Based Indirect Thermographic Temperature Measurement of Reactive Power Compensation Capacitors
Energies
capacitor
FEM
thermal conductivity
temperature distribution thermography
title Thermogram Based Indirect Thermographic Temperature Measurement of Reactive Power Compensation Capacitors
title_full Thermogram Based Indirect Thermographic Temperature Measurement of Reactive Power Compensation Capacitors
title_fullStr Thermogram Based Indirect Thermographic Temperature Measurement of Reactive Power Compensation Capacitors
title_full_unstemmed Thermogram Based Indirect Thermographic Temperature Measurement of Reactive Power Compensation Capacitors
title_short Thermogram Based Indirect Thermographic Temperature Measurement of Reactive Power Compensation Capacitors
title_sort thermogram based indirect thermographic temperature measurement of reactive power compensation capacitors
topic capacitor
FEM
thermal conductivity
temperature distribution thermography
url https://www.mdpi.com/1996-1073/16/5/2164
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AT krzysztofdziarski thermogrambasedindirectthermographictemperaturemeasurementofreactivepowercompensationcapacitors
AT łukaszdruzynski thermogrambasedindirectthermographictemperaturemeasurementofreactivepowercompensationcapacitors
AT grzegorzdombek thermogrambasedindirectthermographictemperaturemeasurementofreactivepowercompensationcapacitors