This software is a powerful tool for verifying electrical performance as it pertains to corona and corona inception as well as voltage stress on an insulator surface.Īssembly models are first designed using SolidWorks software based on customer specifications. Moreover, analysis of unbounded structures can be solved by BEM with minimal effort since exterior field is calculated the same way as interior field. This greatly simplifies modeling and results are more accurate due to the smoothness of the integral operator. Models used for BEM calculations have the advantage of only 2D surface elements that are the interface regions of different materials or surfaces with boundary conditions. The approximate solution obtained by BEM has the distinguishing feature that it is an exact solution of the differential equation in the domain by means of a finite set of parameters residing on the boundary.
BEM – a tool for analyzing boundary value problems for partial differential equations – denotes any method for approximate numerical solution of boundary integral equations. MacLean Power Systems (MPS) uses Integrated Engineering Software’s (IES) Coulomb software package for modeling based on the Boundary Element Method (BEM) to solve models. Many versions of software can be used, each with strengths and preferred uses, including Coulomb, Maxwell 3D, Comsol and Flux 3D. An appropriately configured computer with the necessary power is also necessary. This edited past contribution to INMR by MacLean Power Systems focused on its value in regard to high voltage transmission assemblies.Į-field modeling is accomplished using computer aided engineering (CAE) software capable of calculating electric field intensity of given objects. E-field modeling helps in this regard for many applications. This requires better understanding how hardware, insulators and geometry can impact a transmission assembly. As such, line designers typically focus on optimizing electrical performance. It also highlights limitations of each alternative method as well as associated level of confidence.These days, mechanical design of transmission lines is robust due to improved structures, conductors, hardware and insulators. This presentation deals with characterization of pollution level using classical tools and aims to demonstrate that pollution modelling is complex and requires in-depth expertise.
INMR SOFTWARE UPGRADE
Inappropriate insulation selection can lead to problems such as increased cost of structures due to over-dimensioning or the need to upgrade structures in the case of under-dimensioning. Choice and dimensioning of insulation is closely linked to contamination exposure of equipment while criticality of surface pollution depends on both its quantity and its nature. He is a member of IEC TC 36 ‘Insulators’.Īssessing pollution level must be done whenever a new grid is defined or operating voltage is modified. For more than a decade now, he has dealt with studies and tests on insulators for both overhead line and substation applications, with the main research focus being on insulator performance, behavior under pollution, monitoring and diagnostics. His current position is Research Engineer on external insulation. Pons joined the Electrical Equipment Laboratory at EDF Lab Les Renardières in 2001, where he has worked in the fields of software data processing as well as metrology management for high voltage and high current equipment.
Influence of Different Pollution Sources on Performance of Insulation: Back to Basics
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