Boundary element studies on insulator shape and electric field around HV insulators with or without pollution

Chakravorti, S.; Steinbigler, H.

doi:10.1109/94.841805

Cited by 41 publications

(7 citation statements)

References 10 publications

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“…With the help of commercial software, numeric calculation of the electric field distribution along insulator has become possible and widely used [18][19][20][21][22].…”

Section: Analysis and Simulation Resultsmentioning

confidence: 99%

Influence on voltage distribution of composite insulator by inserting metal electrodes in weather sheds

Chen

Mei

Zhu

et al. 2015

IEEE Trans. Dielect. Electr. Insul.

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The uneven distribution of voltage along the composite insulator strings harmed their electrical and mechanical properties heavily, which threatened the safety of power system. Inserting metal electrodes in the silicone rubber sheds of composite insulator helps increase their self-capacitance, thereby ameliorating the voltage distribution along the string. In this paper, a new structure of weather sheds with metal electrodes inserted has been designed. Tests on composite insulators with different metal electrodes setup were conducted to examine their voltage distribution performance. Corona inception voltage of the mentioned composite insulators was obtained by a remote monitoring system as a criterion of the voltage distribution performance. Simulation model of the insulators were set up and calculation of their voltage and electric field distribution were carried out by finite element method (FEM). The calculation result was in good compliance with the experiment result. The applied voltage at the live end of composite insulator decreased by 4% when inserting electrodes in the weather sheds, which was verified by both experiment and simulation results.

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“…With the help of commercial software, numeric calculation of the electric field distribution along insulator has become possible and widely used [18][19][20][21][22].…”

Section: Analysis and Simulation Resultsmentioning

confidence: 99%

Influence on voltage distribution of composite insulator by inserting metal electrodes in weather sheds

Chen

Mei

Zhu

et al. 2015

IEEE Trans. Dielect. Electr. Insul.

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“…Neuman condition has been applied on the boundary. Porcelain has been assumed as a material the insulator was made (porcelains permitivity value of o p ε ε 6 = has been assumed for the calculations) [2,3]. Clean insulator (without the dirt layer) as well as the one covered with dirt layer distributed uniformly all over the surface, have been assumed for these considerations.…”

Section: A Modeling Of Electrostatic Phenomenamentioning

confidence: 99%

3D vibration and stress analysis of insulators

Trojnar¹,

Pola²

2023

RE&PQJ

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Abstract. Numerous dedicated computer packages are of much help at insulator designing process. Making a digital model of an insulator and then performing computer simulation for the phenomena occurring both inside and outside of it, becomes nowadays a vital information source on the insulator behavior at established (both given and analyzed) operational conditions. Such a process appears to be necessary at the stage of insulator design process. The computer simulation results can verify the data obtained during actual insulator operation or laboratory tests, which make it possible to do suitable adjustments still at the design stage in order to include some innovative solutions, operational features, improvements as well as to get some economical advantages resulting from them.Selected problems associated with static electricity and mechanical phenomena occurring at insulator operation have been addressed in this paper. The calculations have been made with ANSYS Multipurpose Finite Elements Method Package as well as the MSC/PATRAN v.8.5, the latter used mainly for mechanical purposes [6].

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“…It is shown that simplifying the insulator geometry does not drastically affect the induced electric field or potential distribution calculations. [14,15] are some other works which use the idea of geometry simplification of insulators.…”

Section: Introductionmentioning

confidence: 99%

Electrical field and potential distribution of polymer insulators under the influence of a three phase supply

Rasara

Wong

2012

2012 International Conference on High Voltage Engineering and Application

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Power distribution and transmission networks widely adopt composite insulators for the overhead power line applications. The premature failure of these insulators due to the high electric field induced in them has become a major disappointment in the recent years. In this paper, an 11kV composite insulator is modelled in a three phase high voltage environment, and the induced electrical field is studied using finite element analysis. To reduce the computational time and resources, a simplified geometry for the insulator is also proposed. The electric field calculations are used to understand the importance of using a three phase supply in computational and experimental analysis of insulators, which we determine is more accurate than using a single phase supply.

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Boundary element studies on insulator shape and electric field around HV insulators with or without pollution

Cited by 41 publications

References 10 publications

Influence on voltage distribution of composite insulator by inserting metal electrodes in weather sheds

Influence on voltage distribution of composite insulator by inserting metal electrodes in weather sheds

3D vibration and stress analysis of insulators

Electrical field and potential distribution of polymer insulators under the influence of a three phase supply

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