# Bushings

INTEGRATEDâ€™s suite of CAE software products provides a complete toolbox for designers of power system components.

- Programs that cover the range of physical systems including magnetic, electric, eddy current and high frequency field solvers
- Mathematical Solver methods optimized for each particular application
**Self-Adaptive**meshing plus optional user defined**Element Weighting**for maximum accuracy of field solutions.- Direct import of models from CAD Partners including:
**Autodesk**,**PTC**,**Solid Edge**and**SolidWorks**(also**STEP, SAT**and**openNURBS (.3DM)**import from general 3D CAD programs). - Complete range of analysis results and
**visualization/export**tools. **Parametric**utility for prototype testing and optimization**API**and**Scripting**for fast automated custom designs- Partial Discharge (PD) Inception analysis
- Skin and proximity effects in conductors
- Magnetic force calculations
- Simulation of real world transient test conditions like lightning strikes
- Electric field calculations

- Transmission line parameters
- Effects of pollution layers, water droplets
- Thermal analysis

**Our software is the only clear choice for applications involving the modeling of space around the device: that is what we call "large open regions".**

### Electric Field Solvers

Designing high voltage equipment requires accurate electric field analysis. In practice, this can lead to numerically challenging problems complicated by diverse factors ranging from large open regions to thin layers of contaminates.

Static (DC), phasor (AC) or completely general transient electric fields can be simulated using ELECTRO (if 2D or Rotationally Symmetric) or COULOMB (where full 3D analysis is required). Both programs can perform electric field simulations using Self-Adaptive **Boundary Element Method (BEM)** or **Finite Element Method (FEM)** solvers. **BEM** is particularly well suited to open region problems (encountered in studies of insulators on transmission towers) and thin layer problems (encountered in studies of insulators contaminated by pollution or water/ice films).

In addition to providing outstanding visualization of voltage gradients and field components, both programs also contain advanced analysis features for calculation of streamlines and partial discharge inception in insulating oils.

### Magnetic/Eddy Current Field Solvers

Magnetic/Eddy Current field analysis software enables the determination of flux densities, impedances, losses and mechanical forces under both normal operating and fault conditions.

Static (DC), phasor (AC) or completely general transient magnetic fields can be simulated using OERSTED (if 2D or Rotationally Symmetric) or FARADAY (where full 3D analysis is required). Both programs can perform field simulations using Self-Adaptive **Boundary Element Method (BEM)** or **Finite Element Method (FEM)** solvers. **BEM** is particularly well suited to open region problems (encountered in air core reactor and transmission line analysis) while **FEM** can easily accommodate transient problems.

Analysis results from OERSTED and FARADAY can also be directly coupled to INTEGRATED's thermal programs KELVIN (2D/RS) and CELSIUS (3D) to calculate temperature rise due to power losses.

### Thermal Analysis Software

Temperature limitations of insulating materials often dictate the maximum normal operating ratings of power system components. Similarly, maximum allowable temperature rise under fault conditions can determine the required time settings of protective relays and circuit breakers.

Steady state or transient thermal analysis can be performed by KELVIN (if 2D or Rotationally Symmetric) or CELSIUS (where full 3D analysis is required). Both programs can be coupled to INTEGRATED's other field solvers to include heat sources produced by ohmic and dielectric heating, as well as core loss curve calculations.