It is executed based on factors that include the soil thermal resistivity and temperature along with the grouping of the circuits. Software ppcs polymeric power cable system software ppcs designed to be friendly used and tailored to different engineers needs, such as a quick estimation to the cable size for a given load and laying conditions. Power cable installation guide cables installed into conduits or trays have installation parameters such as maximum pulling tensions, sidewall pressure, clearance, and jamming, which must be considered. Underground power cables serve a critical purpose in electric power applications and the electric grid.
Cyme power engineering software and solutions power cable. Cable ampacity studies calculate the currentcarrying capacity ampacity of power cables in underground or above ground installations. Dielectric power loss factors tan for typical cable insulations are. Pdf ampacity calculation of multiple independent cable. Southwire recognized on top employer list for 2020.
Aug 11, 2010 learn about cable ampacity features in etap 7. Power cables ratings ampacity specialist designed and programmed usamp prime, the cable ampacity software, including its technical content and the graphical user interface. Cable ampacity is limited by the peak temperature to which the insulation is subjected, which is the sum of the. Cyme power engineering software low voltage cable sizing. The software examines cable temperature and ampacity in performing analysis of existing systems. Configuration optimization of cables in ductbank based on. The calculation determines the proper cable sizes to carry specified loads in designing new systems and upgrading power cable installations. Other important factors that need to be considered when selecting power. 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. Cable ampacity software is designed to simulate the thermal behavior of power cable installations. Cable sizing and its effect on thermal and ampacity values.
Pdf cable ampacity calculation and analysis for power flow. In this work, ampacity analyzes of 154 kv high voltage xlpe underground power cable are made using ansys 5. High voltage xlpe cable systems technical user guide. Assessment of 69 kv underground cable thermal ratings. Given the emergency time during which an emergency overload is applied, the cymcaprttr software predicts the temperature of the cable at the end of an emergency period. Power engineering software and solutions installations modeling including nonstandard configurations multiple duct banks and backfills. In addition, pdc engineers developed the ace program used in the epri ut workstation. The cymcap software is dedicated to performing ampacity and temperature rise calculations for power cable installations. Cable sizing and its effect on thermal and ampacity values in. Eatons cyme cymcap software is for performing ampacity and temperature rise calculations for power cable installations. Iec 60287 calculation of the continuous current rating of cables 100% load factor is the international standard which defines the procedures and equations to be used in determining the current carry capacity of cable. Keywords cable ampacity, buried cable, finite element analysis, multiphysics, shield grounding.
An experimental setup is developed to measure conductor and surface temperature of the cable in underground conditions. Follow us on social media to get the eaton is a registered trademark. Other installations, such as buried and aerial, have different installation parameters. In this paper, he best configuration t based on ampacity. Other organizations that supply ampacity tables include ieee institute of electrical and electronics engineers, which offers more than 3,000 ampacity tables for extruded dielectric power cables rated through 8 kv and laminar dielectric power cables rated through 500 kv. The powerfactory cable analysis tool contains two packages. Wael moutassem, phd manager, power cable research and. Pcamp is an ampacity program developed by pdc that calculates steadystate and emergency ampacities for all cable types. Licenses for single computer, multiple computer and network applications are available. An assessment of the methods for calculating ampacity of.
Index terms finite element analysis, multiphysics analysis, cable insulation, cable shielding, grounding. The original version of this package was developed jointly by ontario hydro hydro one, mcmaster university, under the auspices of the canadian electricity association. Cablesizer is an automated cable sizing and design calculation tool to iec and nec standards. Ieee power cable ampacity software with ieee std 835 1994. Cable ampacity is defined as the amount of electrical current that can flow in an underground cable which results in the. A further verification has also been made with experiments.
Sep 26, 2016 most cable manufacturers provide ampacity tables on their websites. When designing electrical power systems, it is often necessary to determine underground cable ampacity. Comparison of finite element analysis to iec60287 for. Many have experienced the frustration of a power outage resulting from a failed cable. Cable sizing software computes the size of the cable by also considering overload protection. Usamp prime insulated cable ampacity software models all types of underground power cables pipetype, extruded, and solid paper. Solar pv power plant underground cable sizing case study.
Arc flash power cable ampacity rating dynamic and transient analysis enterprise integration cymgrd grounding grid analysis. Enter the information below to calculate the maximum allowable ampacity for currentcarrying conductors. Ampacities are calculated for single or multiple underground systems including. The cymcap software is dedicated to the calculation of ampacity and temperature rise calculations for power cable installations. Table 7 6 minimum bending radii power cables without metallic shielding or armor 42 table 7 7a minimum bending radii twisted pair instrumentation cable 42. Multiphysics finite element analysis of underground power. Keywordscable ampacity, buried cable, finite element analysis, multiphysics, shield grounding. Computes steadystate and transient ampacities and temperatures for multiple cables with equal or unequal loading. Webbased cable platform for design and calculation of energy cables including cable rating ampacity, electrical parameters, magnetic fields of multifrequency systems, shortcircuit, cable. Introduction cable network usually forms a backbone of the power system. Calculation of the cable ampacity considers only power cables since control cables. The accuracy of the software provides increased confidence when upgrading power cable installations and designing new ones. Ieee standard power cable ampacity tables ieee 8351994 ieee standard power cable ampacity tables status.
Ampacity audits an ampacity audit is intended to carefully determine the actual ampacity of an existing cable system. Practical power cable ampacity analysis velimir lackovic, mscee, p. Thus the configuration of cables determines the total ampacity value and the potential use of a ductbank. Cymcap cable ampacity software power cable ampacity rating simgrid markets cymcap software and provides technical support as well as trainings. Southwire, an industry leader in wire and cable solutions, and go industries, dba longhorn reels, a texasbased company that manufactures wire and cable solutions, have resolved pending litigation. The ampacity, or maximum allowable current, of an electric power cable depends on the allowable temperatures of the cable and any adjacent materials such as insulation or termination equipment.
The accuracy of the software provides increased confidence when upgrading power cable installations and designing new. Our software has been designed to calculate the current rating, temperature rise and cable losses of high voltage power cables under multiple scenarios and installation conditions in accordance with iec standard 60287. The software is suitable for use with windows 7, 8. Cable ampacity software cable sizing software cable. Ampcalc is suitable for cable installations utilized in industrial, commercial and utility electrical power distribution systems. Models duct banks, pipe cables, extruded cables, directly buried cables, casings, or mixtures thereof. Engineering data for copper and aluminum conductor. Determining the maximum current power cables can sustain without deterioration of any of their electrical properties is important for the design of electrical installations. Etap cable sizing software provides various options which can be used for design requirements. Cable ampacity is limited by the peak temperature to which the insulation is subjected, which is the sum of the ambient earth temperature power cable ampacity rating cooper industries. The tables in this standard reflect these changes in methodology and provide the user with a vast array of cable ampacity ratings for 600 v utilization cables, medium voltage distribution.
Software programs usually use neher mcgrath method for the calculation of the cable ampacity. Calculation of the cable ampacity considers only power cables since control cables transmit very little current that has negligible effect to the overall temperature rise. Therefore, complete analysis of the power systems includes detailed analyses of the cable network, especially assessment of the cable ampacities. This dissertation addresses underground electric power cable ampacity and provides analytical, experimental, and operational test results for underground. Cable ampacity calculator energy and power for all. Ampcalc for windows is a computer program from calcware which calculates power cable ampacity ratings andor cable operating temperatures for user defined cable installations.
Cymcap is dedicated to performing ampacity and temperature rise calculations for power cable installations. Iec 60502 cable capacity calculations for power cables per iec 60502 iec 60364. Ieee power cable ampacity software with ieee std 8351994 r2006 on cdrom many factors influence the amount of current a given cable can transfer. The requirements of the national electrical code nec and local codes must always be followed. Ratekit thermal rating toolkit software combines steady state and transient rating analysis with loss of strength and high temperature sag calculation modules. Etap electrical engineering software offers a comprehensive set of cable current carrying capacity ampacity and sizing modules based on the following standards and guidelines. Home download center electrical software cable ampacity calculator description this is digital version of the most frequently used ampacity tables that you would find in electrical codes canadas cec and u. For example, insulation, temperature, and the number of bundled wires. Instant answers to help better navigate your job site calculations. Cable sizing software cable sizing calculation etap. Solar pv power station case study a solar photovoltaic pv power station located in arizona was studied with the goal of comparing the preinstallation engineering analysis of cable temperature and ampacity with. Ampacity of lowvoltage power cables under nonsinusoidal currents abstract. Usi offers strong electrical and electronic equipment design capabilities, and inhouse design and manufacturing of customengineered systems including custom control software programming. Other important factors that need to be considered when selecting power cables are.
I work as design engineer in one company and i would like to use this tool for our calculation. Etap cable sizing program calculates the minimum size required by meeting the overload protection conditions between derated ampacity, operating current and nominal current. Exact cable ampacity when cable parameters, construction, laying methods and bonding techniques used all are known. During this time period, these publications were the only complete document on power cable ampacities in the. Weve created a number of resources to aid in your calculations, estimations and installations.
The cable sizing package can be used either to verify the suitability of the assigned line types or to obtain recommendations for new line types according to a selected international standard or according to userdefined voltage, thermal, and shortcircuit constraints. Power cables without metallic shielding or armor 42. Southwire is proud to announce that our company has achieved a spot on the. Practical power cable ampacity analysis ced engineering.
Jan 21, 2017 this feature is not available right now. Ampacity of lowvoltage power cables under nonsinusoidal. This calculator also provides wire size correction factors for temperature, number of conductors in a raceway, and voltage drop for long wire runs. Evaluating software tools for electrical system design. Cable ampacity iec for multiple layers juleselec electrical 15 apr 17 11. Ampacity level taking into account the installation method of the cable, the software determines the cable size for the installed ampacity.
Support structure conduit three conductor cable ampacity tablets. The software is an efficient tool for making complex calculation tasks straightforward and easy. Software package for polymeric power cable system design. Etaps cable ampacity software is used for calculating cable ampacity based on nec, ieee, icea, iec, and bs standards for underground duct banks, cable trays dstar underground cable ampacity. International electrotechnical commission the international electrotechnical commission is the international standards and conformity assessment body for all fields of electrotechnology. Power engineering software and solutions installations modeling including nonstandard configurations multiple duct banks and backfills the multiple duct banks and backfills addon module mdb is designed to determine the steadystate ampacity of cables installed in several neighboring duct banks andor backfills with different thermal. Providing you the information and recommendations for southwire products. Ampcalc cable ampacity software for underground systems from calcware company is a computer program that calculates power cable ampacity ratings andor cable operating temperatures for userdefined underground cable installations see figure 3. Turn your smartphone into the most valuable tool on your belt. Ipcea p46426 power cable ampacities publications have often been referred to as the black books and have been used by engineers, planners, and system designers throughout the world. The accuracy of the software provides increased confidence when upgrading power cable installations and designing new ones it also helps increase system reliability and supports the proper utilisation of the installed equipment.
Cable sizing and its effect on thermal and ampacity values in underground power distribution over the past decade, underground power distribution has become increasingly popular due to its reliability, safety, aesthetic characteristics, as well as the ever increasing focus on the environmental impacts of the various stages of. It is an assembly of one or more individually insulated electrical conductors, usually held together with an overall sheath. These tables help you determine the cables ampacity, or simply, the ability of the cable, in varying conditions. In case of cable duct bank with a number of lines, fea shows a stronger electromagnetic and thermal interference than predicted by the iec 60287 standard. Resources used include detailed cable parameters, maps paper and digital, asbuilt drawings, operations and maintenance records. As a cable ampacity analysis application, etap engineering software determines the cable current capability based on ieee, iec, icea, nec nfpa, bs, and nfc standards. Gridcablemax hv cable sizing software made for engineers. The advanced wire ampacity calculator will calculate the maximum ampacity for a wire based on wire gauge, preferred or available wire insulation, conductor type and installation specifications. Gridcablemax is a user friendly program that determines cable ratings with total accuracy. This paper investigates the ac resistance in the presence of harmonics and proposes ampacity derating factors for cables made according to cenelec standard hd603. Keywords cable ampacity, nehermcgrath method, pv studies, solar power generation, power cable sizing i.
Cableizer is a software package for the design of power cable systems using electrical, mechanical, thermal and environmental calculations. The wire size calculator will give you a very simple and quick solution to the problem of calculating the size of wires and cables for pump applications in golf courses, landscape projects, and agriculture. The latest version has also added a feature for aerial calculations. Here are tables for low voltage cables in duct banks for 1,3,6 ductsbank for threeconductor cable and 3,6,9 ducts for single conductor cable. Usamp prime software models all types of underground power cables pipetype, extruded, and solid paper. We maintain that program for epri, and may use it for epri member utilities. The standard is applicable to all alternating current voltages and direct current cables up to 5kv. Engineering data for copper and aluminum conductor electrical. This method calculates the impedance for the worse case power factor, i. Revision to introduction corrections to the introduction for the standard with over 3000 ampacity tables for extruded dielectric power cables rated through 8 kv and laminar dielectric power cables rated through 500 kv are addressed in this amendment. These design requirements can be userdefined or automatically determined from load flow, short circuit, and protective device calculation results. The accuracy of the calculation provides increased confidence in the design, upgrading, and analysis projects. Cablesizer cable sizing calculations to iec and nec standards.
The wire ampacity calculator will quickly calculate the maximum allowable current through a conductor based on wire size awg or kcmil, wire insulation, conductor type and installation method. Power cables are mainly used for power transmission and distribution purpose. The ampacity of a cable depends on not only the material and design of a cable but also the distance between different cables. The cymcaprttr software provides the following information of high importance to the cable operator. Portable power cables types w, ggc, shdgc copper table h1 from icea s753812008 ampacities for portable power cables, amperes per power conductor types w, ggc, shdgc power conductor size single conductor two conductors three conductors four conductors five conductors six conductors. Power cable ampacity software eaton s mission is to improve the quality of life and the environment through the use of power management technologies and services.
For insulated cables, the insulation maximum temperature is normally the limiting material property that constrains ampacity. An audit begins with evaluating the utilitys load shape, the circuit plan and profile drawings, manufacturers cable data, any soil thermal analyses, etc. Introduction he rated current of the underground electric power cable line is limited by the maximal allowable temperature of cable conductor, given by the standard or the cable manufacturer. Usamp prime software models all types of underground power cables, computing steadystate and transient ampacities and temperatures. Practical power cable ampacity analysis a pdh online. Cableizer is completely webbased because we believe saas is the future. They consider only temperature limited, current carrying capacity of cables. The reactance for single core cables is selected from the flat, touching column in from table 30 in asnzs 3008. Cable heating is a direct function of the power carried by an underground cable and therefore a limiting steadystate current rating ampacity is used to rate the amount of electrical current allowed to flow through the line. What is wire ampacity and how do you find ampacity rating. The assembly is used for transmission and distribution of electrical power. Hello could somebody help me and give me a tip where can i download for free commercial usage some tool for calculation of cable ampacity according to iec 60 287 not for us standard. Cable ampacity software cable sizing software cable derating. Introduction the ampacity of underground power cable lines is limited.
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