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. In this paper, a real time case study has been considered and the design was done. What does it take to design a masterpiece of a substation. Software products ses india grounding, earthing, software. And supersedes bs 7354 1990 code of practice for the design of highvoltage openterminal stations. Electrical 20142018 sardar vallabhbhai institute of technology, vasad vadodara, india abstractthe paper depicts about design of ground grid system for 6611kv rectangular substation. We have already given an introduction to substation earthing system in an article published earlier.
Cdegs c urrent d istribution, e lectromagnetic interference, g rounding and s oil structure analysis is a powerful set of integrated software tools designed to accurately analyze a variety of electromagnetic related problems encountered in all industries involving electric networks. Responsibilities the group manager works enablement is the. Earthing design service utilising cdegs software package. Design of earthing grounding system in a substation grid. Design parameters grounding grid design analysis consists of 5. As part of the earthing calculations design safety brief. List all data that must be known in the starting of grounding system design calculations for ac substation, facilitate the design process by using the auto excel mathematical functions in performing the calculations, provide a professional design concept for any grounding system of ac substation as per standard ieee 802000. The substation ground grid design also takes into consideration of the freezing and raining season. Know the grounding design procedure for ac substations, performing grounding design calculations for ac substations, use the excel spreadsheets for grounding system design for domestic, commercial and industrial facilities and ac substations. Safegrid earthing electrotechnik pty ltdelectrical.
Design and analysis of substation grounding grid with and. This paper is to provide information pertinent to safe earthing practices in ac substation design and to establish the safe limits of potential difference under normal and fault conditions. The cymgrd software is a substation grounding grid design and analysis program specially developed to help engineers optimize the design of new grids and. An introduction to grounding calculations and why they are. Sds substation design software experience the best of what modern substation design has to offer. Before 1960s the design criterion of substation earthing system was low earth resistance. The earthing design process the design of an earthing system for a small distribution substation is, in essence, no different to that of any larger substation, and in fact can be more. Earthing mat design for substation spreadsheet photo by input fields as per. The earthing system must be designed using latest version of the cdegs design software package.
The results compare the simple equations from ieee std 80 with the results given by some of the commercially available software such as cdegs, etap, sgw, sdworkstation. The designer must use suitable cdegs earthing design module to model the grid and. Secondary substation earthing design tool icp user guide document number. The ground grid module enables engineers to quickly design and analyze. Speed project collaboration and coordination with the only software that lets you unite electrical and physical design. Substation design suite is a proven technology which provides 3d as well as 2d design module with capabilities of providing a full specification for a complete substation. 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. Two day national conference rteece2014 17th,18th january 2014 89 criterion for substation earthing system was low eart hing. Is using cdegs for design of the substation earthing system. The earthing system also ensures that no thermal or. The manager substation design is the subject matter expert sme for the content and shall.
Earthing design electrotechnik pty ltdelectrical calculations. Apr 14, 20 design of substation grounding grid using edsa software abstract. Jul, 2017 earthing of ac substation basic part 1, consist of basics about earthing design in ac outdoor substation. 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. Earthing of ac substation basic part 1, consist of basics about earthing design in ac outdoor substation. The autogrounddesign software package is the only fully automated software.
This paper deals with design of the substation grounding system by using computer. The construction scope of work includes the procurement, installation and commissioning of the lighting protection system such as. Earthing mat design for substation spreadsheet photo by input fields as per ansiieee std 801986 code. The grounding grid provides a common ground for the electrical equipment as well all the metallic structures. Power substation design calculations a checklist of 18. Design safe buried earthing and grounding systems for applications including substations, power plants, transmission lines, transformers, mining, commercial and. Earthing mat design for a power substation ms excel spreadsheet. Optimized design of substation grounding system using newly. Groundingearthing design package for large substations, power plants, hvdc substations and electrode design, solar power plants and hydroelectric power plants.
Earthing design services when building or upgrading hv electrical services, one of the most important stages of the design process is the hv earthing system design. Etap model for earth mat design etap model for earth. Optimized design of earthing system for substations with. List all data that must be known in the starting of grounding system design calculations for ac substation, facilitate the design process by using the auto excel mathematical functions in. The cross section of the buried cable should calculated in accordance with the value of the phasetoearth short. This paper presents the design of earthing system for 2 kv substations and simulation for calculation of required parameters. Today we are going to discuss the design of substation earthing system. A variety of advanced solvers provide adapted approaches to. Ground grid systems software ground grid design ieee 80. Responsibilities the group manager works enablement is the process owner responsible for approving this reference. Home download center electrical software earthing mat design for substation.
Optimized design of substation grounding system using newly developed ieee compliant software issn. The problem is formulated as a mixedinteger linear. Grounding design calculations part seventeen electrical. As it is well known, proper design of the grounding system is most important part of the whole project of.
Program is designed as per ansiieee 80 code, it calculates step potential of switchyard, touch potential of. User guide secondary substation earthing design tool icp. Design safe buried earthing and grounding systems for applications including substations, power plants, transmission lines, transformers, mining, commercial. In our opinion computer modeling is the only viable and ethical way to design a substation grounding grid. Ea technologys earthing system audit provides an essential assessment of the earthing system. Basics of designing power substations 3 phase associates. Build custom earthing systems, using finiteelements determine a safe design overview features videos screenshots faq testimonials training overview determine earthing system. The construction scope of work includes the procurement, installation and commissioning of the lighting protection system such as lightning masts and associated earth stakes, overhead earth wires, down conductors, fittings and connections to the substation earthing system. In this article, i will share 18 design studies or calculations that will set you up to create a beautiful substation. Video 1 earthing of ac substation basic part 1 youtube. Cdegs c urrent d istribution, e lectromagnetic interference, g rounding and s oil structure analysis is a powerful set of integrated software tools designed to accurately analyze a variety.
Avoid rework, reduce errors, and enhance collaboration with linked and crossreferenced 3d layouts and electrical drawings. Earthing calculations safe earthing system design forget. Earthing design service utilising cdegs software package earthing system audits ea technologys earthing system audit provides an essential assessment of the earthing system in and around substations and other power assets, along with the associated maintenance procedures. This became enforceable in 2012 across the eu, where the standard explicitly recognises the. Electrical 20142018 sardar vallabhbhai institute of. Lightning protection design, earthing system design lightning. Jul 26, 2017 the substation grounding system comprises of a grid earth mat formed by a horizontal buried conductors. Highvoltage equipment, substructures, cable ducts, wires, tubes, clamps, roads and fences can be easily selected from a comprehensive library and placed as intelligent 3d objects on a voltagedependent grid. Our earthing solutions experts have pushed the boundaries in electrical power earthing for more than 15 years. The tools either come as standalone packages or plugin modules to power system analysis software such as ptws groundmat or etaps ground grid design assessment. 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. The earthing design process the design of an earthing system for a small distribution substation is, in essence, no different to that of any larger substation, and in fact can be more onerous due to close proximity to other systemsservices, and direct connection via cable sheaths to consumers premises. Cymgrd, substation grounding program the cymgrd software is a substation grounding grid design and analysis program specially developed to help engineers optimize the design of new.
Bs 7430 earthing protection, was similarly updated in 2011. An introduction to grounding calculations and why they are necessary. Effective grounding system design is important as it deals with personnel safety and protection of electrical equipment. Produce greenfield and brownfield designs up to 40 percent faster with bentley substation. This paper is to provide information pertinent to safe. The first step in designing a power substation is to design an earthing and bonding system go to content earthing and bonding. Optimized design of substation grounding system using. Grounding system modeling, grounding grid representation, earth conductivity and connected power system. Grounding earthing design package for large substations, power plants, hvdc substations and electrode design, solar power plants and hydroelectric power plants. 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. Computer software packages can be used to assist in earthing grid design by modeling and simulation of different earthing grid configurations. Software tool for grounding system design request pdf. Substation the basics of a substation configuration and.
The grounding grid provides a common ground for the electrical equipment as well all the metallic structures in the substation. Cdegs is a computerbased electrical engineering modeling software program. The designer must use suitable cdegs earthing design module to model the grid and any third party infrastructure if it has been affected by development of the relevant substation infrastructure. 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. 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. Design and analysis of ground grid system for substation using etap software and fdm code in matlab deep b. Part 2 will cover the tolerable step and touch voltage. Cdegs earthing software shifting the system design. Design of substation grounding grid using edsa software. Introduction testing of earthing systems enables confirmation of the design. The main purpose of this work is the development of an optimization model for the design of the grounding grid in electrical substations. Iec based en 50522 earthing of power installations exceeding 1 kv a. There are national and international standards available, which provide empirical formulae for the calculation of earthing design parameters and shock.
Servicing a broad range of clients in the electricity distribution, transmission and generation industry and in the construction sector worldwide, our engineers are widely respected as leaders in this safety critical area. Build custom earthing systems, using finiteelements determine a safe design overview features videos screenshots faq testimonials training overview determine earthing system performance, touch and step voltage safety compliance. Etap model for earth mat design etap model for earth mat design. Safegrid earthing electrotechnik pty ltdelectrical calculations. Design of substation grounding grid using edsa software abstract. The function of an earthing and bonding system is to provide an earthing system connection to which transformer neutrals or earthing impedances may be connected in order to pass the maximum fault current. Is using cdegs for design of the substation earthing. Eatons cymgrd software is a substation grounding grid design and analysis program specially developed to help engineers optimize the design of new grids. The substation grounding system comprises of a grid earth mat formed by a horizontal buried conductors. Earth resistance software including powertools for windows and arc flash hazard analysis. Safegrid earthing and grounding design software youtube.
Design and analysis of ground grid system for substation. Substation design suite is a proven technology which provides 3d as well as 2d design. 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. Know the grounding design procedure for ac substations, performing grounding design calculations for ac substations, use the excel spreadsheets for grounding system design for. Sep, 2017 an introduction to grounding calculations and why they are necessary. The cross section of the buried cable should calculated in accordance with the value of the phaseto earth short. Important formulas for designing a substation grid earthing system. Design of substation earthing grid can be very challenging in the twolayer soils especially when the bottom layer soil resistivity is higher than that of the top layer. As it is well known, proper design of the grounding system is most important part of the whole project of the. The annex h in ieee standard 8020 contains benchmark case results for comparing and evaluating software tools and methodologies used for the analysis of substation earthing. Multigroundz plus, rightofway pro, sestlc pro, sesenviroplus and sesshield3d software packages. Cdegs earthing software shifting the system design industry.