Discover elec calc, a low voltage electrical calculation software, and its main features. 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. Sep, 2017 an introduction to grounding calculations and why they are necessary. Earthing calculation jobs apr 2020 latest earthing. A choice of delivery option group, private or online is available to suit your particular needs. The ground grid systems module enables engineers to quickly and accurately design and analyze ground protection.
However an indepth knowledge of earthing principles as well as understanding the safegrid modules, which our technical training course will give you, enables you to perform better earthing designs. Earthing calculation jobs check out latest earthing calculation job vacancies for freshers and experienced with eligibility, salary, experience, and location. Earthing mat design for a power substation ms excel spreadsheet. Expert technical training for safegrid earthing software. Ses offers the most powerful software packages in the industry. Electrical software institute for engineering training and. If 1ohm is still in circulation on your documentation then this section applies to you even though the earthing calculations for determining a safe system earth ground has shifted away from an arbitrary resistance figure, usually earthing electrode and earthing resistance depends on the resistivity of soil and time for fault current to pass through 1 sec or 3 sec. System grounding and earthing types analysis software etap. Current distribution, electromagnetic interference, grounding and soil structure analysis, earthing software. Earthing in electrical network purpose, methods conventional methods of earthing 1.
Its awesome that you listed the specific calculations for the voltages and frequencies for the main transformer. Initially, they were used to quickly solve the nonlinear load flow problem and calculate short circuit currents, but their use has been extended to many other areas such as power system stability, protection and coordination, contingency reliability, economic modelling, etc. Flexible design methodologies allow for quick autodesigned layouts or very detailed schemes. Bills of quantity related to each lightning protection system design are accessible at any time in the software. Grounding system design calculations 1 course description. There is no general rule to calculate the exact no of earth pits and size of earthing strip, but discharging of leakage current is certainly dependent on the cross section area of the material so for any equipment the earth strip size is calculated on the current to be carried by that strip. How to calculate the electrical earthing system quora. They feature powerful capabilities and offer clear and flexible data entry screens. Protective earthing conductor sizing calculation is based on a selected standard such as nfpa 70 nec section 250. Earthing calculations safe earthing system design forget. Calculation of maximum permissible touch and step voltages. The calculation of the earthing resistance requires a good knowledge of the soil properties, particularly of its resistivity thus, the large variation in the value of. Dec 04, 2017 if you mean, methods, tools, etc it would be helpful to know what, specifically you are trying to calculate, you take into account things like soil composition, water table, average precipitation, etc. Finally they will cover post processing for calculation of earth potentials and touch and step voltages use of reference points and soil layer.
Fully integrated with load flow, short circuit, and protective device coordination modules. Click on the link for detailed information on the selected software tool. Introduction to substation earthing grid important formulas for designing a substation grid earthing system maximum tolerable step potential maximum tolerable touch potential maximum tolerable current through the human body resistance of the earth grid substation earthing grid exothermic welding c connector. Register free to apply various earthing calculation job openings on monster india.
Safegrid earthing electrotechnik pty ltdelectrical. The earthing calculation aids in the proper design of the earthing. The autogrounddesign software package is the only fully automated. The earthing system is designed so that the allowable touch and step voltages do not be exceeded. Cable sizing calculations for phase, neutral and earthing conductors are based on the following criteria. The neutral point of transformer to the earth ground network provides a reference point of zero volts. User friendly interface with full and accurate cable sizing calculations to iet bs7671 and integrated electrical cad plan design features. Comprehensive report for grid and rod configuration. Ground grid systems software ground grid design ieee. Please help us to understand about this and how to come out of this issue.
Cable sizing, macros, multi scenarios, earthing systems, power balance, protections, selectivity and. Home cable sizing software electricalom is the ideal cable sizing software. We are in process of doing earthing calculation for a small project with 11. Calculate whether lightning protection is required or not for following building. Introduction to substation earthing grid important formulas for designing a substation grid earthing system maximum tolerable step potential maximum tolerable touch potential maximum tolerable current through the human body resistance of the earth grid substation earthing. Pdf a systematic method for the design of earthing system. The electrical earthing is done by connecting the noncurrent carrying part of the equipment or neutral of supply system to the ground. Electrical calculation tools are based upon schneider electric ecodial electrical network calculation wellknown software. Grounding design calculations part nine electrical knowhow.
Earthing calculations regarding your safety youre overdue an update. Using software programs to model grounding systems and perform analysis is now standard for all but the simplest grounding. This could be a great guide for electrical engineers looking to calculate the size of a neutral earthing transformer. Design of earthing grounding system in a substation grid. To calculate the grounding resistance the dc conduction module of quickfield can be used. Proper size of earth electrodes, earth continuity conductor and earth leads with the help of tables for a factory layout.
The earthing system provides a reference potential for electronic circuits and helps reduce electrical noise for electronic, instrumentation and communication systems. Gsa includes the module sra to calculate uniform or multilayer soil model. Feb 06, 2018 this could be a great guide for electrical engineers looking to calculate the size of a neutral earthing transformer. In addition to the products and 25 years of experience that axis offers, we also offer a software suite which will help simplify all your lightning protection calculations so. Electric shock protection protective earthing cable. We offer extensive training, covering both the use of safegrid software and earthing principles, to help you get the most out of your product. Shareware junction periodically updates pricing and software information of earthing analysis v. In many practical situations, a homogenous ground structure will be assumed with an average value of. Elek safegrid earthing and grounding design software. The tecat version for professionals that dont need the touch and step potentials calculations from tecat plus that is, tecat pro is not suitable for designing substation grids. An introduction to grounding calculations and why they are.
Xgslab is one of the most powerful software of discover more. Sep 12, 2014 overview on etap capabilities in ground grid system design and analysis using ieee 80 standard and finite element method fem. Using this software you can design and analyses your power system from the source of power all the way to the loads connected to it. Easypower is the exclusive representative of xgslab software in the usa and. Greymatters earthing arrangements hv earthing design to. No download needed, direct access from your web browser. Calculate the voltage drop of a defined cable and check the maximum length.
Also, i explained the fifth method of grounding design calculations. 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. If we divide the area for earthing required by the area of one earth plate gives the no of earth pits required. 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 safe buried earthing and grounding systems for applications including substations, power plants, transmission lines, transformers, mining, commercial and industrial sites. Power systems analysis and simulation software are ubiquitous in electrical engineering practice. Our lpi earthing calculator is used to give preliminary estimations for earthing installations in power system and lightning applications.
Make planning easier with the various calculation programmes in dehnsupport toolbox a software for electrical planning engineers, installers of lightning protection systems and electricians. I have used skm ground mat software to calculate the touch and step voltages for two earthing configurations of the transformer kiosk assuming. Power substation design calculations a checklist of 18. The latest release of the nvent erico gem calculator features. 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 get the most powerful solution. Ground enhancement material gem is a superior conductive material that solves your toughest grounding problems by reducing earth resistance and impedance measurements. Electrical calculations made fast, easy and accurate. Generally for plate type earthing normal practice is to use. Software tools and utilities ses safe engineering service. Once your information has been submitted youll be able to download the software.
Number of earthing electrode and earthing resistance depends on the resistivity of soil and time for fault current to pass through 1 sec or 3 sec. If we divide the area for earthing required by the area of one earth plate gives the number of earth pits required. The substation grounding grid is a system of horizontal, interconnected bare ground. Grounding design calculations part five and grounding design calculations part six. Screenshot of template, bs7430 calculation of earthing resistance. Xgslab, a complete software tool for the simulation of power, earthing, grounding and lightning systems. Computer software packages can be used to assist in earthing grid design by modeling and simulation of different earthing grid configurations. Electrotechnik pty ltdelectrical calculations software. This program will calculate the resistance values of resistors. With over 25 years of development, tecat plus is the best costbenefit solution on the market, with full numerical calculations in 4layer soil one of the best in the world of resistivity, grid resistance and shortcircuit potentials. Safegrid earthing software is powerful and very easy to use and a basic understanding of earthing principles is sufficient for using safegrid. 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.
Whenever a fault occurs in a substation, the earth becomes saturated with currents flowing to ground from the grounding grid and other ground electrodes buried below the surface of the earth. Software piracy is theft, using crack, password, serial numbers, registration codes, key generators, cd key, hacks is illegal and prevent future development of earthing analysis v. To simulate current distribution around grounding you should specify voltage and current sources, earth resistivity. High efficient multicore parallel calculation allows fast analysis of irregular. What is the tolarable value of gprepr for earthing grid calculation. Spreadsheet to calculate the size of neutral earthing transformer. Gsa is an engineering software for earth grid calculations and design including.
A large number of software utilities and tools are available to support and complement the main software packages. Online calculator for calculating earthing system this online calculator will help you to quickly and accurately perform the calculation parameters of the grounding system in the twolayer soil, consisting of vertical earthing. This software can give analysis of ground grid safety performance and is able to recommend optimal grid design for. Electrical calculations for android free download and. Program is designed as per ansiieee 80 code, it calculates step potential of switchyard, touch potential of switchyard, total length of earthing mat conductor, size of earthing mat conductor and total. This course is intended to prepare the target persons with the ability to perform all electrical grounding system design for domestic, commercial and industrial facilities and ac substations. Comprehensive report for surface potential analysis featuring station data and currents diffused to ground by the grid elements. Sophisticated cut and fill software should allow the estimator to select any grid from grid staking reports and view the cut and fill measurements associated with that area. These new online software tools will progressively substitute curve direct and direct coordination. Calculationofimportantdesignparametersforgroundingsystemsi.
Protective earthing pe conductor sizing software cable. Xgslab is one of the most powerful software for grounding system analysis, electromagnetic fields, interference and lightning analysis and the only software on the market that takes into account both en and ieee standards. Quantity calculation made simple quantity calculation made simple generate volume calculation and section drawings from point data available. Grounding design calculations part seventeen electrical. With dehn earthing tool you calculate the required length of earth electrodes taking the type of earth electrode and the soil resistivity into account. The resulting earthing types are displayed both on the one line diagram and for the various connected cables. Calculate numbers of platepipestrip earthings part1. The calculated results are examined to determine if all design requirements are met. List all applicable standards for grounding system design calculations for domestic, commercial and industrial premises, list acceptable values for earthing resistance, calculate soil resistivity by using ground testers that apply the wenner 4point method, provide a professional design concept for any grounding system.
The output report of etap says the calculated surface potential is greater than gpr probably because of line current source assumption. Our calculator is used to give preliminary estimations for earthing installations in power system and lightning applications. Calculate no of down conductor for lightning protection area of building structure. In this article, i will share 18 design studies or calculations that will set you up to create a beautiful 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.
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. When the system neutral may not available, earthing transformer may be used to obtain the neutral. Today, i will explain the sixth method of grounding design calculations. It is the ideal material to use in areas of poor conductivity, such as rocky ground, mountain tops and sandy soil. Calculate lightning protection for building structure. Touch voltage, step voltage, and earth potential analysis.
Home download center electrical software earthing mat design for a power substation ms excel spreadsheet what does this spreadsheet do. Most of other functions of tecat plus are available, like up to 4layer stratification, up to 4layer resistance and reports. Source characteristics earthing system, fault levels etc load current. If 1ohm is still in circulation on your documentation then this section applies to you even though the earthing calculations for determining a safe system earth ground has shifted away from an arbitrary resistance figure, usually software cymgrd, substation grounding 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 grids and reinforce existing grids, of any shape, by virtue of easy to use, builtin danger point evaluation facilities.
Groundingearthing and lightning analysis software i have been approached by the electrical manager of my company if i had any desire in become the group grounding and lightning subject matter expert. Lightning stock flushing density number of thunderstorm. Earthing calculator lightning protection services lpi. The earth filling calculation program should allow the estimator to measure trench plans and profiles, as well as determine slope, widths and heights. High efficient multicore parallel calculation allows fast analysis of irregular largescale renewable applications. Ground grid systems software ground grid design ieee 80. Ses sestech is your single source solution provider for all your grounding, earthing, lightning, electromagnetic interference and emc analysis and mitigation problems. The ideal electrical design and circuit calculation software for electrical contractors, electrical consultants and electrical engineers. Pdf grounding system design in electrical substation.
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. Implementation of a lightning protection system including freestanding pylons on site is also feasible. The process of transferring the immediate discharge of the electrical energy directly to the earth by the help of the low resistance wire is known as the electrical earthing. Earthing mat design for a power substation ms excel. Grounding design calculations part four electrical knowhow. Safegrid earthing electrotechnik pty ltdelectrical calculations. Program is designed as per ansiieee 80 code, it calculates step potential of switchyard, touch potential of switchyard, total length of earthing mat conductor, size of earthing mat conductor and total number of earthing rods.
It is compatible with ceramicstripe style resistors resistors with 35 coloured bands. Ietp offers a suite of fully integrated electrical engineering software solutions including arc flash, load flow, short circuit, transient stability, relay coordination, and more. The cymgrd software is a substation grounding grid design and analysis. Accurate results in full compliance with the latest earthing calculation open electrical. Overview on etap capabilities in ground grid system design and analysis using ieee 80 standard and finite element method fem. By using online earthing calculators in articles grounding design calculations part seven and grounding design calculations part eight. Its cdegs suite of software packages is the state of the art in this field of expertise and an industry reference worldwide. Earthing resistance and calculations electric power. This calculation is based primarily on the guidelines provided by ieee std 80 2000, guide for safety in ac substation grounding. Spreadsheet to calculate the size of neutral earthing. The calculation area is restricted by the air above and by artificial boundary at other sides. Calculate size of neutral earthing transformer net. What does it take to design a masterpiece of a substation.
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