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Configure AutoGrid Pro to meet your needs and budget.

You no longer have to settle for substandard grounding packages because of budget limitations. The latest version of AutoGrid Pro enables you to select the required components from a flexible array of options such as:

  • Several soil structure models
  • Fault current distribution support
  • Soil resistivity interpretation analysis support
  • Technical support options

This powerful, yet easy-to-use software package provides a simple, integrated and automated environment for carrying out grounding studies. It consists of several integrated engineering modules that are designed to study the effectiveness of grounding installations with respect to electrical safety of both personnel and equipment, allowing you to suggest improvements to existing installations or design new installations. Flexible data reporting and graphing utilities allow you to collect and illustrate any aspects of the results that are important to your work. The program computes and reports the earth potentials, touch and step voltages, fault current distribution in the adjoining circuits, etc…

The component-based nature of the software package allows you to focus on your immediate needs, from the computation of the resistance of a simple grid  to a complete safety analysis of the complex grounding system of a substation. Simply add more components as your needs evolve! Typical AutoGrid Pro packages include:

  • AutoGrid Pro (Lite): This entry-level package supports any arbitrarily shaped grounding system buried in a uniform soil. It computes the grounding system resistance and potential rise. This package is ideal for users not interested in computing soil potentials, touch and step voltages. This package also includes a graphical grounding system specification interface (SESCAD) and a conductor ampacity computation module (Ampacity) and other useful tools. This package has the ACDER capabilities (Automatic Configuration and Dimension of Electrodes that meet a specific earth Resistance target).
  • AutoGrid Pro (Uniform Soil): This package analyzes any arbitrarily shaped grounding system located in a uniform soil. It computes the grounding system resistance and potential rise, as well as the earth potentials throughout any regions of interest. It also allows you to carry out a full analysis of the touch and step voltages at any location inside or outside the grid.
  • AutoGrid Pro (Uniform Soil & Fault Current Distribution): This package includes everything found in the Uniform Soil package and adds a powerful module which computes the distribution of fault current between the grounding system and other metallic paths such as overhead ground wires, shield wires, neutral conductors, or cable sheaths and armors.
  • AutoGrid Pro (Two-Layer Horizontal Soil & Soil Resistivity): This package includes everything found in the Uniform Soil package and adds the ability to model soil structures composed of two horizontal layers. It also adds a resistivity measurement analysis module that converts measured data into a suitable soil model.
  • AutoGrid Pro (Two-Layer Horizontal Soil& Fault Current Distribution): This package includes everything found in the Uniform Soil package and adds the ability to model soil structures composed of two horizontal layers. It also adds a powerful module which computes the distribution of fault current between the grounding system and other metallic paths such as overhead ground wires, shield wires, neutral conductors, or cable sheaths and armors. Note that the resistivity measurement analysis module that converts measured data into a suitable soil model is not included in this package.
  • AutoGrid Pro (Two-Layer Horizontal Soil, Soil Resistivity & Fault Current Distribution): This package includes everything found in the preceding Two-Layer Horizontal Soil packages.
  • AutoGrid Pro (Multi-Layer Soil, with Fault Current Distribution): This package includes everything found in all other packages and adds several useful soil models, including multilayer horizontally layered soils, vertically layered soils, spherically and cylindrically layered soils and an all-purpose finite-volume soil model consisting of several arbitrarily shaped regions with different electrical properties. All packages also includes a conductor ampacity computation module  and other useful tools. This package can not be ordered without the resistivity analysis or fault current distribution modules.

Highlights

AutoGrid Pro is a powerful, yet easy-to-use tool, which provides a simple, automated and integrated environment for carrying out grounding studies. The software package consists of several integrated engineering modules that are designed to study the effectiveness of grounding installations with respect to electrical safety of both personnel and equipment, allowing you to suggest improvements to existing or new installations. AutoGrid Pro supports a wide variety of soil structures and can determine the soil structure from field resistivity measurements. The program can model grounding grids of any shape and size; several electrodes can be modelled simultaneously. It can also determine the fault current distribution between the grounding system and other metallic paths such as overhead ground wires, shield wires, neutral conductors, or cable sheaths and armours.

Detailed Description

AutoGrid Pro is a powerful software package for the analysis of the effectiveness of grounding installations. It computes the resistance of any grounding system, earth potentials anywhere inside or outside  the  installation and the ground potential rise of the grid and of nearby buried metallic structures. It also computes the expected touch and step voltages around the installations, and indicate the regions where safe limits are exceeded. It accounts for complex soil structures and for the presence of transmission or distribution lines or cables connected to the grid. The computational engine of AutoGrid Pro is based on the MALT, RESAP and FCDIST engineering modules which have been used in grounding studies for over twenty years. The user interface consists of a CAD drawing module for the design of the grounding  grid,  along  with  several  integrated  modules such  as:

  • The Soil module determines the characteristics of the soil from field resistivity measurements.
  • The Circuit module computes the geometrical and electrical properties of adjacent transmission or distribution lines or cables and determines the fault current distribution.
  • The Safety module establishes the criteria used when evaluating safety issues  around  the  installation.
  • The Report module manages the results that should be reported or plotted.
  • Other utility modules and tools, such as a circuit viewer and a conductor  ampacity assessment tool.

To accommodate a wide range of applications, many of the program’’s features are optional, and can be added at any time, should the need arise.

The CAD drawing module offers full 3D drawing capabilities to create the grid. It also doubles as a central location for project management. Several tools are available to simplify the creation of complex structures and to move, rotate, and view the grid from any angle. Use the Object Database to quickly add commonly encountered structures to your design, or to store your own structures.

The Soil module defines the characteristics of the soil where the grounding grid is installed. Choose a soil model from among several types, including horizontally layered soils, vertically layered soils, and soils with “arbitrary heterogeneities” where the electrical properties of the soil can vary arbitrarily as a function of position. Alternatively, specify the data obtained from soil resistivity measurements and let the program determine a suitable soil model.

The Circuit module is used when it is necessary to take into account the contribution of adjacent transmission and distribution circuits to the grounding. Specify the geometrical locations of the neutral and phase wires and the electrical characteristics of the neutral wires, or select these quantities from extensive conductor databases. You can also add your own products to the databases. Alternatively, you can specify the impedances of the wires explicitly, for a finer control. An input processor is available to view the circuits and their characteristics.

 

The Safety module lets you select the criteria that should be used during the safety analysis of the grounding installation. This includes limits on touch and step voltages, based on  standards of your choice (e.g., IEEE, IEC). Choose from several safety scenarios. Let the program decide which area should be examined for safety issues (based on the size of the grid) or draw explicitly the region of interest on top of the grid. The program reports which areas exceed the safety limits, allowing you to quickly assess the effectiveness of corrective measures.

The Report module provides an exhaustive list of available plots and text reports, whose appearance you can customize. For all computed quantities, you can choose among 2D curve plots, 3D-perspective plots, color intensity plots and contour plots. Plots can be produced in most popular graphics formats.

Documentation and support are second to none. An extensive, context-sensitive help system is available for each field or item on your screen. Furthermore, a detailed, step-by-step “How To...” engineering manual is provided to guide you through each phase of the engineering and modeling tasks required to complete the analysis. This tutorial is based on a realistic grounding study.

Finally, if you still need help, SES experts are available to help you no matter where you are on this planet. Use our toll-free international telephone numbers or send us a fax or email for immediate, unconditional and free technical support.

In Summary

AutoGrid Pro provides the following capabilities:

  • CAD-based design of the ground grid, allowing for the presence of ground rods. There are no restrictions on the geometry of the grid.
  • Accounts for the presence of nearby passive or energized buried structures.
  • Models a wide variety of soil types. Accepts soil resistivity measurements made using the Schlumberger, Wenner or  generalized  method.
  • Computes the distribution of fault current along the circuits connected to the main grid, thereby reducing the net amount of fault current injected in the main grid.
  • Computes the ampacity of conductors, the minimum size of conductors capable of carrying a certain current, or the expected temperature rise of conductors.
  • Spreadsheet functions ease and speed up data entry.
  • Key screens provide illustrations clearly representing the data to be entered and extensive on-line help is only one keystroke or mouse click away.

  • Context-sensitive online help and a detailed, step-by-step engineering “How To...” manual explain the software session and technical concepts based on a realistic grounding installation.

 

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