EDSA’s Advanced Substation Grounding Grid Design program is a powerful tool for power quality engineers. As required by NEC, an electrical system must have effective grounding to ensure safety.
This can be obtained by the operation of the over-current device as soon as a ground fault occurs. If the over-current device operates slowly or not at all, the result could be electrocution, fire, or damage to equipment..
The objectives of a Grounding Design are 1) to provide means to carry electric current into the earth under normal and fault conditions without exceeding any operating and equipment limits, or adversely affect continuity of service, and 2) to make sure that a person in the vicinity of grounded facilities is not exposed to the danger of critical electric shock.
Touch Potential 3D Graph
Product Demos:
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Product Summary:
Copyright 2008 EDSA Micro Corporation. All rights reserved. "EDSA," "Paladin," and "Power Analytics" are trademarks of EDSA Micro Corporation. All other trademarks, names, logos are the property of their respective holders. EDSA gratefully acknowledges governmental and regulatory agencies whose names, photos, logos, award programs, or certification programs are listed herein; such use does not constitute their endorsement of EDSA or its products by these agencies.
Key Program Features:
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Rectangular, square or arbitrary shaped grid;
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Parallel or arbitrary oriented run of conductors;
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Equal, irregular conductor spacing;
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Multiple layers of earth types (soil, crushed rock or other material as the top layer);
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Calculation of tolerable step voltage and touch voltage on the basis of the person weighing 50 or 70 kg (110 or 155 lbs);
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Ground resistance is calculated using conductance matrix; contrary to the Sverak's or Schwarz's approximate methods, this method is exact and accurate;
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English or Metric units;
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Development of the two-layer soil resistively model based on the Wenner measurement techniques using advanced optimization method;
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Computation of ground grid assembly resistance, ground potential rise (GPR), step, touch, and mesh voltages;
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2-D and 3-D plots of surface potential;
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Plots of touch and step voltages along a user-defined path.
Advanced Substation Grounding Grid Design
Step Potential Along an Axis
Copyright 2008 EDSA Micro Corporation. All rights reserved. "EDSA," "Paladin," and "Power Analytics" are trademarks of EDSA Micro Corporation. All other trademarks, names, logos are the property of their respective holders. EDSA gratefully acknowledges governmental and regulatory agencies whose names, photos, logos, award programs, or certification programs are listed herein; such use does not constitute their endorsement of EDSA or its products by these agencies.
