In high and medium voltage air insulated substations ais the electromagnetic field, which causes are the static charges of bare cable and conductors and by the atmospheric conditions surges, induce voltages at nolive parts of the installation that create potential differences between metallic parts and ground and also between different points of. Its cdegs suite of software packages is the state of the art in this field of expertise and an industry reference worldwide. These conductive enclosures, underground grounding grid and above ground bus bars, all contribute to the grounding system. Design and analysis of ground grid system for substation. In ieee 80 only uniform soil resistivity modelling is given. Basic substation configurations and the components. While in editing any geometric grounding model the following sda specific models and. Substation grounding software is a utility program accessible through the software menu structure, that allows the user to alternate between the autocad and substation grounding software environments. Pdf advanced substation grounding grid design touch potential. In fact, autocad remains a firm software requirement for substation grounding. Sep 12, 2014 overview on etap capabilities in ground grid system design and analysis using ieee 80 standard and finite element method fem. A quantitative analysis of the effects of lightning surges isalso beyond the scope of this guide. For industrial building grounding systems, you are not usually concerned with touch potentials, so the software is not applicable.
Cdegs current distribution, electromagnetic interference, grounding and soil structure analysis is a powerful set of integrated software tools designed to accurately analyze a. In any substation deliberately planned earthing system plays an important role since absence of reliable and effective grounding system can result in maloperation or nonoperation of control and protective devices and may prove hazardous for persons working therein. As it is well known, proper design of the grounding system is most important part of the whole project of the. Development of ieee complaint software economical substation grounding. So the software should be capable of meddling above ground and below ground. The cdegs software package current distribution, electromagnetic fields, grounding and soil structure analysis is a powerful set of integrated engineering software tools. Cdegs is a computerbased electrical engineering modeling software program that uses ieee 80 calculations as a base, but additionally takes into account multilayer soils and all the other engineering factors mentioned above. Sae will ensure that your grounding system meets or exceeds all relevant safety standards and all electrical codes. Grounding software free download grounding top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices.
Ses offers the most powerful software packages in the industry. The autogrounddesign package performs automated analyses of grounding earthing systems of any arbitrary perimeter and identifies an economical grid configuration complying with userdefined safety criteria that can be used as the design for grounding grids that are electrically small enough to be considered equipotential. By using online earthing calculators in articles grounding design calculations part seven and grounding design calculations part eight. Earthing mat design for substation spreadsheet photo by input fields as per ansiieee std 801986 code. Also, i explained the fifth method of grounding design calculations. An introduction to grounding calculations and why they are. The main reason for using the software is to get an economical design that limits touch potentials in an outdoor substation. Cyme substation grounding software brochure pdf 545 kb this brochure describes eaton s cyme cymgrd software which is a substation grounding grid design and analysis program specially developed to help engineers optimize the design of new grids and reinforce existing grids, of any shape.
Review of substation grounding practices, safety and. Design safe buried earthing and grounding systems for applications including substations, power plants, transmission lines, transformers, mining, commercial. Download table input data required for grounding system design from publication. Sel401 apply the sel401 for substations with iec 6185092 sampled values sv systems. Optimal design of grounding system for hv ehv substations in. Before 1960s the design criterion of substation earthing system was low earth resistance. Is using cdegs for design of the substation earthing. Windows based integrated grounding system design program. Download now download our product catalogue in pdf format. Sep, 2017 an introduction to grounding calculations and why they are necessary. This software is suitable for grounding systems of any size. Substation sub bass virtual workstation from dope kitz is a high octane, easily customizable virtual instrument for both mac and pc that gives you a collection of amazingly huge sub bass and synth.
Ieee guide for safety in ac substation grounding ieee std 802000. Software products grounding, earthing, software ses india. Pdf the design of 110kv substation grounding grid with high. Mortezaeei 2 1 electrical engineering department, seraj higher education institute, tabriz, iran, n. The cyme power engineering software is a suite of applications composed of a network editor, analysis modules and usercustomizable model libraries from which you can choose to. Relevant standards include ieee 80 guide for safety in ac substation grounding and ieee142 recommended practice for grounding of industrial and commercial power systems, nec, cec and oescesa.
Important formulas for designing a substation grid earthing system. Design of substation grounding grid using edsa software. Design of substation grounding grid using edsa software ieee. This is a great advantage if compare with other grounding programs that the split factor is to be input usualy assumed. Cdegs grounding power systems tutorialpart 1 introduction. The sda models and tools are available within the winigs geometric grounding model. Application software for analysis and design of grounding grids of substations based on the requirements of the ieee 80 ieee guide for safety in ac substation grounding. Grounding earthing design package for large substations, power plants, hvdc substations and electrode design, solar power plants and hydroelectric power plants. Guide to grounding systems electrical engineering portal. Well continue to add 3d renderings from the other hps product lines over. Easypower is partnering with the industryleading grounding and emi analysis expert company, sint ingegneria, which offers a software package to analyze and design grounding, lightning and electromagnetic interference problems by focusing on its powerful and yet affordable grounding analysis software packages, xgslab easypower is the exclusive representative. Download and install the complements needed to generate reports. Substation grounding plays the primary role in several key aspects of fault clearing, equipment preservation and, most importantly, personnel protection as well as protection of the passing public. Easypower is partnering with the industryleading grounding and emi analysis expert company, sint ingegneria, which offers a software package to analyze and design grounding, lightning and electromagnetic interference problems by focusing on its powerful and yet affordable grounding analysis software packages, xgslab.
Substation system software applications cyme grids eaton. Next select openutilities under brand and select apply. To download or ftp the software updates patches you. With ses, you input the total fault from your fault analysis program, along with data on shield wires, tower grounds, source substation ground resistance, etc. Gis substation grounding, earthing, software ses india. In our opinion computer modeling is the only viable and ethical way to design a substation grounding grid. Effective grounding system design is important as it deals with personnel safety and protection of electrical equipment. Optimized design of substation grounding system using newly. The substation grounding system is an essential part of the every electrical system. Design principles of substation grounding system your. Conventional switching and gis substations with or without transformers. Earthing mat design for a power substation ms excel.
Next search for openutilities substation and select get software. Starting substation grounding program from edsa technical 2005 main menu 15 figure 5. First, it provides a means of dissipating electric current into the earth without exceeding the operating limits of. The sel401 is a standalone merging unit with phase overcurrent and breaker failure protection. May 1819, 2020 dynamic structural rigid and flexible bus design in air insulated substations. Cymgrd is a substation grounding grid design and analysis module specially designed to help engineers optimize the design of new grids and reinforce existing grids, of any shape, by virtue of easy to use, builtin danger point evaluation facilities. This includes things to look for that might indicate problems in the stations grounding system. An introduction to grounding calculations and why they are necessary. A complete array of auxiliary software tools are included in the cdegs suite to complement, support and enhance the methods used to solve various problems involving grounding, electromagnetic. Pdf this paper presents the design of 110kv substation grounding grid with high resistivity soil. Analysis results, corresponding to a specific device, can be displayed by double clicking on the device drawing. How to download the bentley substation software elcocad. The system neutral is connected to the ground through grounding. Electrical engineers use powertools to perform harmonic analysis, transient stability analysis, short circuit analysis, and to determine demand load, voltage drop, arcflash hazard analysis and protective device coordination.
Substation grounding programs technical report osti. Software tool for grounding system design request pdf. The proper grounding of a substation is essential and very important for the following two reasons. Usually this is more difficult in smaller substations. We use cookies to provide you with the best possible user experience. Hps introduces the new substation connector 3d portal. Apr 14, 20 design of substation grounding grid using edsa software abstract. Safegrid earthing electrotechnik pty ltdelectrical calculations. What you need to know about substations incident prevention. If you continue to use the site without changing your cookie settings, we assume you are fine with our cookies and the way we use them. Today, i will explain the sixth method of grounding design calculations. Grounding design calculations part nine electrical knowhow. Two day national conference rteece2014 17th,18th january 2014 88 optimized design of substation grounding system. Hi, im a bit new at substations grounding and i have given myself an exercise to do it for a 1 mva 110.
Application software for analysis and design of grounding grids of substations based on. The discharge path for surge arrestors and safety of operating personnels can also be achieved through grounding. It accounts for the impedance of the conductors making upthe grounding system and allows currents to be injected into the system at any number of locations. Review of substation grounding practices, safety and constructability enhancements authors. No attempt is made to cover the grounding problems peculiar to dc substations. The most important factor in the substation is the grounding. Multigroundz plus, rightofway pro, sestlc pro, sesenviroplus and sesshield3d software packages. Expert technical training for safegrid earthing software. The gis substation has most of its electrical structure contained in sealed tubular enclosures. A choice of delivery option group, private or online is available to suit your particular needs. We are developing computer program to analyze substation grounding system performance.
A horizontal two layer soil model is built by means of the malt program of the software cdegs. Bentley substation is the only software that unites electrical and physical design. Software products ses india grounding, earthing, software. Home download center electrical engineering books and technical guides power substation guides guide to grounding systems design considerations the general purpose of earthing system is to protect life and property in the event of 5060 hz faults shortcircuit and transient phenomena lightning, switching operations. With over 80% of our standard voltage substation connectors 3d renderings in one location, this tool is a valuable time savings for your next project.
Both rigid and flexible bus structures can be analyzed. Design of earthing grounding system in a substation grid. Home download center electrical engineering books and technical guides power substation guides guidelines to properly designed substation grounding system soil resistivity measurements before the design of the grounding system begins, soil resistivity measurements need to be taken at the substation. Safegrid earthing electrical calculations and design software. Substation protection overview sel487v protect and control grounded and ungrounded, single and doublewye capacitor bank configurations. This section describes the use of these models and tools. April 710, 2020 integrated grounding system design and testing. Home download center electrical software earthing mat design for substation. The grounding system geometric data are edited via the ground editor, which displays the grounding system as a scaled drawing, either in top, side, or perspective views. Design of substation grounding grid using edsa software abstract. Advanced grounding concepts grounding analysis and. We have referred to cdegs as recommended by you, also we have gone through etap ggs module and cymgrd. We have already given an introduction to substation earthing system in an article published earlier. Using software programs to model grounding systems and perform analysis is now standard for all but the simplest grounding.
Grounding software free download grounding top 4 download. Aspix calculates the grid resistance, and touch and step voltages for grids of any shape. Optimized design of substation grounding system using newly developed ieee compliant software issn. We offer extensive training, covering both the use of safegrid software and earthing principles, to help you get the most out of your product. The size, shape, and position of any ground electrode can be altered using the mouse or by numeric entry. The cross section of the buried cable should calculated in accordance with the value of the phasetoearth short. System grounding and earthing types analysis software etap. Eaton s cymgrd software is a substation grounding grid design and analysis program specially developed to help engineers optimize the design of new grids and reinforce existing grids, of any shape, by virtue of easy to use, builtin danger point evaluation facilities. Grounding grid dimensioning for electrical substations, primary and secondary transmission and distribution, telecommunications, lightning protection and lowvoltage installation with over 25 years of development, tecat plus is the best cost benefit solution on the market, with full numerical calculations in 4 layer soil one of the best in. September 1618, 2020 power distribution system grounding and transients. Whether you are confronted with a complex grounding design, emf studies, electromagnetic compatibility and interference problems or a lightningsurge study, you can rely on the accuracy, effectiveness and integrity of our applications for a realistic, optimized solution. The five volume report comprises the user manual, installation, and validation manual and an applications guide for the sga substation grounding analysis software package. The most powerful and accurate suite of commercially available grounding earthing and electromagnetic analysis software packages on the market.
The resulting earthing types are displayed both on the one line diagram and for the various connected cables. The grounding grid provides a common ground for the electrical equipment as well all the metallic structures in the substation. Input data required for grounding system design download table. Whether you are a grounding software developer, a substation designer, a standards engineer inside a utility company, or a lineman in the field, we look forward to answering your questions. This paper deals with design of the substation grounding system by using computer. Guidelines to properly designed substation grounding. Earthing system is made of a mesh of buried bare copper cable, with additional earth rods, and shall be calculated, being recommended to use ieee std. This brochure describes eaton s cyme cymgrd software which is a substation grounding grid design and analysis program specially developed to help engineers optimize the design of new grids and reinforce existing grids, of any shape. Substation grounding software is not a substitute for autocad. Today we are going to discuss the design of substation earthing system. We are in process of doing earthing calculation for a small project with 11. Eatons cymgrd software is a substation grounding grid design and analysis program specially developed to help engineers optimize the design of new grids.
Other advantage is that the program determine the worst case scenario after many automatic iterations usually located somewere in the line outside the substation. Optimized design of substation grounding system using. The cymgrd software is a substation grounding grid design and analysis program specially developed to help engineers optimize the design of new grids and reinforce existing grids, of any shape, by virtue of easy to use, builtin danger point evaluation facilities. Design and analysis of ground grid system for substation using etap software and fdm code in matlab written by deep b. The only free software program for grounding design calculations is ericogem and because of this, it will be explained in this article. The autogrounddesign package performs automated analyses of grounding earthing.
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