Power systems engineers can use the software CYMGRD to design grounding facilities for substations. The Canadian software CYMGRD allows to perform soil resistivity measurement interpretations, elevation of ground potential rise and danger point evaluation within any area of interest.
Above listed analysis can be performed using the following modules:
Figure 1: Surface touch and step potentials
Figure 2: Touch voltages contours shown in 3-D
CYMGRD conforms to IEEE 80™ 2000, IEEE 81™ 1983 and IEEE 837™ 2002.
CYMGRD has a bi-directional interface with AutoCAD® to import ground grid layouts already entered via AutoCAD and to export grid layouts to AutoCAD whenever ground grids have been entered within CYMGRD.
This interface utility is embedded within the CYMGRD software, allowing users to alternate easily between the AutoCAD and the CYMGRD environments.
Figure 3: Validation and Update of the AutoCAD® drawing
The software CYME is developed by Eaton and distributed by Powersys in France.
CYME Power Engineering software is a suite of applications for distribution, transmission and industrial power systems analysis.
It is composed of a network editor, analysis modules and user-customizable model libraries from which you can choose to get the most powerful solution. Modules available allow load-flow, short-circuit, harmonics, transient stability, voltage stability analysis as well as protective device coordination, cable ampacity calculations, substation grounding. Powersys is the exclusive distributor in Europe.