Once the plot is created, double click each axis and. Find eatons time current curves for protective relays, fuses, loadcenters, panelboards and circuit breakers both current and vintage. Enhance siemens etu745 plot for combination of lt delay i4t and st delay i 2t. View and download the time current curves and energy letthrough curves. Configuration manual for catalog lv 10 20162017 siemens. If several protective devices are to interact effectively in a.
After logging in you will see your user specific settings and prices as well as having other functions at your disposal. These curves are provided by the manufacturers of electrical overcurrent. Once installed, you can fill out the breaker info and trip unit settings and it will generate the curve. Display the time current curves of 1 to 8 circuitbreakers. Use two columns for each curve, one for time and the other for current.
Curve direct interfaces with rsu modules which let you modify the settings of micrologic. Selective coordination study recommended procedures. Figure 11 time current curve 114 7sr224 argus performance specification appendix 1 figure 11. A time current curve tcc plots the interrupting time of an overcurrent device based on a given current level. These values are set on the device in accordance with the operating instructions of the circuit. Time current curve and series coordination software specifications on disk individual breaker frame instruction guides speedfax catalogcdrom application guidecdrom world wide web product support backed by siemens. The warranty contained in the contract between the parties is the sole warranty of siemens. It can be seen from the time current curve on the following page that actual timecurrent curves are drawn on loglog paper, and the horizontal line is in multiples of the breakers continuous current. Specifically, it calls for a comprehensive portfolio of physical and digital. The simaris configuration software provides reliable support when it comes to. Jul 19, 2016 hihow can i get the tcc for two type of breakerswl i 1600 with a etu25bwli with a etu25bthanks split from circuit breaker testing etu25b.
Characteristic cutoff current and letthrough energy curves. Jan 28, 2014 a time current curve tcc plots the interrupting time of an overcurrent device based on a given current level. The 100a cb has a std set at 6 cycles and the 800a cb has a std set at 24 cycles. Time current curve 1 2010 siemens protection devices limited chapter 3 page 12 of 50. These new online software tools will progressively substitute curve direct and direct. How to delete my current user registry settings for solid. Apr 27, 2018 this video contains an explanation of an electronic trip unit for molded case circuit breakers. Special application molded case circuit breakers timecurrent curves. Din vde 0636 specifies tolerancedependent timecurrent ranges within which the characteristic curves of the fuse must lie. In these articles, i have discussed the methodology on how to create timecurrent curves using excel. Understanding time current curves maverick technologies. The tripping curve of the fuselink is drawn on the chart. However, simply plotting the curves does not prove selective coordination.
For that trip unit, i think you need to download the siemens time current curve tcc software. Simaris curves electrical planning software simaris. Siemens molded case circuit breakers bqocqo type circuit breakers product bulletin ul listed compact size single handle glass polyester housing common trip quickmake quickbreak trip free mechanism 1,2 or 3 pole units ul listed field. Selective coordination is a design requirement newly. It provides details on long time, short time, instantaneous and ground fault.
Femap is an advanced engineering simulation application for creating, editing and importingreusing meshcentric finite element analysis models of complex products or systems. Creating coordination curves with excel time current curves with excel ii time current curves with excel iii time current curves. Calculation tools for low voltage electrical network. Starting from a driving current, steadystate, electrothermal solution at t 0 s, we conducted a transient thermalonly simulation and recorded the resulting chip average temperature versus time curve figure 2. Specifically, it calls for a comprehensive portfolio of physical and digital technologies, products and solutions that allow us to actively build our energy future.
Home download center electrical software available fault current selective coordination spreadsheet. So, the mediumvoltage protecive devices are drawn on the chart by multiplying their current by the ratio. Low and medium voltage power circuit breakers timecurrent curves. White paper understanding time current curves understanding time current curves david paul p.
Ltpu long time pickup ltd long time delay stpu short time pickup std short time delay inst instantaneous gf ground fault gfd ground fault delay l s i g timecurrent curves circuit breakers cargill electrical team meeting 22. May 22, 2015 the pickup current values for the failed trip elements were higher than the published ite time current curve for this type of circuit breaker. Time current curves how to read tcc plots maverick. These curves are provided by the manufacturers of electrical overcurrent interrupting devices, such as fuses and circuit breakers. Describe timecurrent characteristics on a timecurrent curve explain the benefits and function of circuit breaker coordination identify internal and external circuit breaker accessories explain the difference between molded case circuit breakers and insulated case circuit breakers. Keep in mind that the xaxis of the chart represents the lowvoltage side current. Underwriters laboratories ul was established in 1894 as the underwriters electrical bureau, a bureau of the national board of fire underwriters.
Simaris curves electrical planning software simaris siemens. It can be seen from the time current curve on the following page that actual timecurrent curves are drawn on loglog paper, and the horizontal line is in multiples of the breakers continuous current rating. The contents of this catalog shall not become part of or modify any prior or existing agreement, commitment or relationship. Abb pcd control protection curves note on applying protection curves. Ltd long time delay stpu short time pickup std short time delay. Frf selection the frf selection is done in the upper left.
The list is for current production and out of production ge devices. Then select scatter plot with connected lines for the plot type. The goal of this short paper is to introduce you to the concept of trip curves and explain how to read and understand them. Siemens industry catalog automation technology industrial controls protection equipment motor starter protectorscircuit breakers sirius 3rv2 motor starter protectors for motor protection product details industry mall siemens usa. Nema publications or your local siemens sales office.
The instantaneous element is switch selectable in six steps from 2 to 15 times the current sensor rating. Although in reality, t3ster switches down to a sensing current at the start of the transient measure. The long time circuit has a switchselectable thermal memory func tion for motor protection. Someone told me to delete my current user registry settings for solid edge but i dont know how to do it.
Loadcenter, panelboard and industrial miniature breakers timecurrent curves. Selective coordination study recommended procedures 14 the following steps are recommended when conducting a selective coordination study. Time current curve and series coordination software specifications on disk individual breaker frame instruction guides speedfax catalogcdrom application guidecdrom world wide web product support backed by siemens innovation and technology. Time savings if time is money, siemens vl will save you a lot. Understanding trip curves introduction to trip curves for ul 489 miniature circuit breakers and ul 1077 supplementary protectors.
Siemens plm software fullcircuit 3d electro thermal modeling. Once installed, you can fill out the breaker info and trip unit settings and it will generate the curve for you. Software archive technical data 2 introduction neozed fuse systems 8 neozed fuse links. With this registration youre putting yourself forward as the main users for your company. Protective devices have different tripping units for different types of electrical equipment. As this curve is reporting the amount of current vs time. As soon as we have confirmed your registration, you can, with the appropriate. The goal of this short paper is to introduce you to the concept of trip curves.
Hi therei want to test a circuit breaker siemens fittled with etu25b trip unit, having the trip curve as shown below in the attachmentthere is long time setting adjustable on the trip unit having readings short time adjustable knob and short time. Available fault current selective coordination spreadsheet. Trip curves, aka time current curves, can be an intimidating topic. Every circuit breaker has a characteristic curve that reports the manner in which it trips. Shortcircuit results shown right in the tcc oneline, including all fault types, asymmetrical or symmetrical values, and remote voltage and currents. By calculating design points for various amplitude scaling, both lower and higher than the original cycle amplitudes, a full life curve blue curve in figure 22 is created. Free software which offers prompt visualization of timecurrent curves and also of letthrough current and energy curves. However, the licensee also reports that approximately 75 of the same model of ite siemens allis circuit breakers supplied in previous shipments have tested satisfactorily. Aug 29, 2019 the display curve is the sum of all the frfs being used in the modal curvefit. Siemens fuses of operational class gg, at an operational voltage of up to 400 vac and a ratio of 1. View and download the timecurrent curves and energy letthrough curves.
Characteristic cutoff current and letthrough energy curves are also displayed. Mar 15, 2018 for that trip unit, i think you need to download the siemens time current curve tcc software. Sidoor software kit consisting of sidoor user software with travel curve editor and oscilloscope function, siemens hcs12 firmware loader, usb adapter, 1x usb connecting cable of the length 2 m. Hihow can i get the tcc for two type of breakerswl i 1600 with a etu25bwli with a etu25bthanks split from circuit breaker testing etu25b. Describe time current characteristics on a time current curve explain the benefits and function of circuit breaker coordination identify internal and external circuit breaker accessories explain the difference between molded case circuit breakers and insulated case circuit breakers. Ratio phasetophase medium voltage phasetophase low voltage 20000400 50. Oneline diagram obtain the electrical system oneline diagram that identifies. Relay coordination using microsoft excel electric power. Show original curve for lv breakers causes program to close. Some key features of the bandwidth selection minor worksheet.
The device interrupting times must be added to all curves to obtain maximum clearing time. The calculated tripping times must be entered in the relevant cells and compared with the setpoint values. Meeting the challenges of changing energy systems requires cuttingedge products and services covering the entire energy value chain. Sep 19, 2017 every circuit breaker has a characteristic curve that reports the manner in which it trips. You can use femap to model components, assemblies or systems and to determine the behavioral response for a given operating environment. Timecurrent curves using excel part 1 filipino engineer. It can be seen that the higher the current, the shorter the time the circuit breaker will remain closed. I have two holes but i need to project either their circles or points as a reference in the second part to be able to create two pins.
The long time delay is selectable with a choice of five bands. Creating coordination curves with excel timecurrent curves with excel ii timecurrent curves with excel iii timecurrent curves with excel iv i would suggest that if you are not familiar with creating graphs in excel that you go to each. Abbs electrification business has always been at the forefront of innovative electrification and today is writing the future of safe, smart and sustainable electrification. Login registration as an already registered user simply enter your userame and password in the login page in the appropriate fields. Builtin check points of the breakers mechanical operator provide an additional layer of safety and external controls by inhibiting the breaker from. Ges6164 power break with magnetrip types tpmm thmm 1200 1600af. The pickup current values for the failed trip elements were higher than the published ite time current curve for this type of circuit breaker. Describe time current characteristics on a time current curve explain the benefits and function of circuit breaker coordination identify internal and external circuit breaker accessories explain the. These curves are part of the product acceptance testing required by underwriters laboratories ul and. Display the timecurrent curves of 1 to 8 circuitbreakers. Siemens sentron series molded circuit breakers brochure.
However, the licensee also reports that approximately 75 of the same model of ite siemens. Instantaneous and st zsi for microentelliguard trip units. The sales contract contains the entire obligation of siemens. I2t line the curve of the characteristic depends on the outward heat transfer from the fuse element. Hi therei want to test a circuit breaker siemens fittled with etu25b trip unit, having the trip curve as shown below in the attachmentthere is long time setting adjustable on the trip unit having readings short time adjustable knob and short time delay a. Easy customizable layout of the oneline inside the tcc. Siemens plm software, a leader in media and telecommunications software, delivers digital solutions for cuttingedge technology supporting complex products in a rapidly changing market. Characteristic curves time current characteristic curves. The simaris curves software, which also comes free of charge, visualizes characteristic curves with tolerance bands as well as setting options of specific parameters for lowvoltage protective devices and fuses iec. How can i get the tcc for two type of breakers siemens.
One example is the quick installation by simple connection of the main line. Backed by siemens innovation and technology a solutions. The instantaneous pickup setting is independent of the long time current. By default, all measurement runs of the current project section are used for analysis. Time current curve 114 2010 siemens protection devices limited chapter 3 page of 50.
Shortcircuit results shown right in the tcc oneline, including all. By default, pcd is set to instantaneous reset time. Ges6167 power break with magnetrip types tpmm thmm 3000 4000af. Siemens digital industries software siemens plm software. These values are set on the device in accordance with the operating instructions of the circuit break er test device. 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. Available fault current selective coordination siemens. Electrical calculation tools is a set of 7 computer aided online tools designed to help you. The number of time i try to open any file the same number of dialogue boxes are open on my system and eventually the solid edge crashes. This document gives the control response time for all curves available in the pcd. Set curves easily with a mousesimply click and drag, seeing the exact manufacturers settings as you drag. By scaling the input time history both higher and lower, the sensitivity of the design point to changes in cycle amplitude can be determined.
11 1468 1506 88 1572 867 958 1198 97 166 83 433 760 464 381 1151 1558 1398 35 515 1295 1446 1540 324 1345 408 813 120 755 992 1368 733 628 1297 1025 323 952 976 1364 480 398 672 406 1207