![]() The larger the file size, the longer the simulation runtime solution runtime can range from as little as 10 min to over 24 h. Temporary file size is relatively large (MB–GB range). The mesh and temporary file are both used for internal calculations. Then, the simulation is started and temporary file size determined. triangles, the more detailed the output (see Fig. After all components are assigned a voltage or boundary condition, the software generates a mesh such that he finer the mesh elements, i.e. To confirm assembly design, the simulated voltage is 15% higher than nominal service voltage. Conductive components not directly in contact with either conductor or tower are assigned a floating voltage that is calculated during simulation. Hardware in contact with the conductor is assigned the V SP while the tower and ground are assigned 0V. single-phase voltage (V SP) is used most often. ![]() Insulation medium is defined on insulator volumes (glass, polymer or porcelain). Next, the model is imported to the Coulomb simulation software and boundary conditions are assigned. After all this information is attained, the model can be created, making sure to keep complex details to a minimum and instead focusing on high stress areas that increase simulation solve time. An E-field modeling worksheet, completed by the customer, consolidates information from drawings, specifications and acceptance criteria into one document. 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. These days, mechanical design of transmission lines is robust due to improved structures, conductors, hardware and insulators. ![]()
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