Advanced Grounding Concepts
PO Box 49116, Atlanta GA 30359,
Phone / FAX : (404) 325-5411
Latest program version : WinIGS 5.5c - January 2012
New Features in Version WinIGS 5.5
Automatic Circuit Titles. Title test of circuit models can now be automatically updated based on specified line length, nominal voltage, phase conductors, and terminal names. Automatic title update can be applied on selected circuits or on all simultaneously on all circuits. Circuit titles can be optionally displayed in single line diagrams.
Max GPR Algorithm Improvement. The computational efficiency of the Maximum Ground Potential Rise algorithm has been enhanced using sparsity techniques. The computational speed improvement is significant when applied to large networks.
New Features in Version WinIGS 5.4
Includes 32 and 64 bit WinIGS versions. Setup program automatically installs the 64 bit version, if supported by hardware and operating system. The 64 bit version can adrress memory over the 2 Gigabyte limit imposed by the 32 bit Windows operating system.
Circuit Power Loss Report. Version 5.4 introduces a report of transmission line losses. This report provides the total power loss on each power line conductor (phase conductors and shields or neutrals), as well as the earth path and tower ground losses. It also provides power loss and voltage profile plots along each line conductor.
Electromagnetic Field Report. Version 5.4 also includes a report of electromagnetic fields along overhead transmission lines. This report provides static and animated graphics indicating the electric and magnetic field magnitude and direction near single or multiple parallel overhead transmission lines.
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New Features in Version WinIGS 5.3
Structural Dynamic Analysis. Version 5.3 introduces a new tool for mechanical analysis of substation bus structures. The mechanical analysis is based on a dynamic time domain simulation of bus structures under various excitations including Magnetic Forces, Wind and Ice Loading, Earthquakes, and User Defined Forces and Moments. The simulation results include: Magnetic Force Magnitude, Buswork Displacements, Tensile, Compression and Shear Forces, Torques, and Moments, and Tensile, Compression and Shear Stresses. These quantities are reported in time plot format, as well as in tables of maximum values. The locations where the displacements, forces and stresses are reported are selected using meter elements. Meter elements can manually created by the user, or automatically created at the locations where maximum values occur.
Note: the SDA tool is available as an extra cost option. Please Contact AGC for more information.
New Features in Version WinIGS 5.2
Updated Grounding System Resistance Report. In a grounding system containing multiple isolated groups of ground conductors the ground resistance of each group is reported in two ways: (a) driving resistance of each group, or (b) equivalent circuit shunt resistance term at each group. Furthermore the full resistance or conductance matrix of the grounding system is also reported.
New Ground Conductor Current Report. A new report has been added that lists the maximum ground conductor current, the maximum earth current density, and the total earth current for each ground conductor group.
Soil Current Density Report Tool. A new report tool has been added which displays the soil current flowing through a user defined vertically oriented rectangle.
New Features in Version WinIGS 5.1
Enhanced Touch Voltage Computation. A new option has been added in the polygonal frame object which determines the area where touch voltages are computed and plotted. This option computes the touch voltage as the voltage difference between a point on the soil surface and the nearest point of the grounding system. Note that in previous versions of WinIGS touch voltage was computed as the voltage difference between a point on the soil surface and a user selected fixed node or group of the grounding system
Ground Conductor Voltage Plots. A new option has been added in the Grounding System Voltage/Current Profile Reports, which plots the voltage along selected ground conductors. Furthermore the ground conductor voltages can be also visualized via 3-D Surface plots.
Fault Current Contribution Analysis. A new report function has been added which computes the local and remote current contribution to a fault occurring within a facility.
New Features in Version WinIGS 5.0
Ground Editor Composite Element Library. A Composite Element Library allows storing commonly used objects such as transformers breakers switches etc so that they can be easily reused in multiple case files.(See Composite Element Library)
Enhanced Mutually Coupled Transmission Line Model. The Mutually Coupled Transmission Line Model parameter window has been enhanced to allow use of the tower library. Specifically, the conductor positions are automatically set by selecting a tower from the tower library window. Multiple towers can be specified at user defined spacings so that parallel circuits can be easily created (See Mutually Coupled Transmission Line Model, Model 109).
Auto-Connector Command. This command adds ground conductor connectors at all T-intersections of horizontal ground conductors (See also Command Auto Connector)
New Ground Editor Snapping Options. A number of object snapping options have been added to the ground editor, including node to line, node to node, and orthogonal snap (See using the ground editor, section Snapping for details)
Hi Resolution 3-D Clipboard Copy. When copying 3D Rendered Grounding System Views to the windows clipboard a pop-up window allows selection of the copied image resolution. Available options are 1x, 2x, and 4x the screen resolution.
Ground Editor Link/Unlink. Elements in the grounding system editor can be linked into a composite element using the link command. The Unlink command reverses the action of the link command, separating up composite elements into their primitive components.
Ground Editor Rotation Shortcut Keys. In the grounding system editor, function keys F5, F6, F7, and F8 now provide shortcuts fro rotating selected elements about a vertical axis through the center of gravity of the selected elements.
Additional information on past versions is available under the "New Features" section of the WinIGS program online help.
