INTEGRATED Engineering Software presents COULOMB™, a powerful 3D electric design and analysis software featuring our innovative Boundary Element Method (BEM) technology, well suited for applications where the design requires a large open field analysis and exact modeling of the boundaries.

The Finite Element Method (FEM) is also available in the same package, allowing designers to select the most suitable solver according to their application, and verify the results independently within just one program. COULOMB™ combines exceptional ease of use, speed, and accuracy; all in one fully-integrated software package.


  • Intuitive and structured interface which maximizes productivity for experts and beginners alike
  • Static, phasor and transient analysis modes
  • Ability to assign constant or non-uniform charge distributions to surfaces
  • Electrostatic force and torque calculations on surfaces and volumes
  • Conductance and capacitance calculations
  • Calculations of electric energy of a system
  • A variety of display forms for plotting scalar and vector field quantities including: graphs, contour plots, arrow plots, profile plots, streamline plots and vector loci plots
  • High quality 3D graphics and text utility for preparation of reports and presentations.
  • Data exportable to formatted files for integration with spreadsheets and other software packages
  • Batch processing that allows unattended solution of multiple files
  • Powerful parametric feature which allows definition of variable parameters to be stepped through for the analysis of multiple “what-if” scenarios, facilitating design optimization
  • A wide array of post processing options for design evaluation and optimization
  • Self adaptative meshing or optional user refinement
  • CAD healing utilities for automatic correction of drafting errors
  • Large library of dielectric and conductive materials to whichadditional materials can be easily added
Benchmark Problems for Simulating Electric Fields Near Sharp Corner


“COULOMB™ was essential for the success of our work. It is very user-friendly and the customer support has been excellent. In fact, INTEGRATED Engineering Software modified COULOMB especially to simplify for us the readout of the induced surface charges.”

“COULOMB™ was the best choice for our study. The Boundary Element Method quickly solves three dimensional modeling and electrostatic simulations. COULOMB accurately analyzed the effects of corona ring, transmission tower, insulator type and angle between V-strings on potential and electric field distribution.”

“We found COULOMB™ 3D an ideal tool to calculate the electric fields on big open structures like overhead lines. Due to the nature of the boundary element method it allows the calculation of big arrangements consisting of two towers and 6 phases. The mesh at the specific point of interest can be refined for every calculation providing a detailed electric field plot of a composite insulator close to the end fitting (so called “triple point”). We also appreciated the excellent support of INTEGRATED’s technical support reps helping us to refine and optimize the model. At the end we achieved a calculation time of only 15 minutes, while it was still a couple of hours initially.”

“Our design challenge was to provide a switch and energy dump in a very small volume and do so cost effectively. Coulomb allowed us evaluate the design for long term failure mechanisms such as reactive ion bombardment of the insulator structure. The switch has been in service now for over 6 years without any dielectric system failures reported from the field.”