Aspen Line Constants Program Software
Aspen Leaflet – Volume 24, Number Comes with an extensive relay library that can be edited by the user. Michigan Tech Aspen Oneliner Notes. The easy-to-use graphical interface makes it an ideal tool for investigating the effects of network reconfiguration and temporary outages on power flow, system losses, area interchange and circuit overloading. Easy-to-use interactive graphics interface under Windows Vista, 7, 8 and Uploader:Date Added:10 August 2015File Size:29.30 MbOperating Systems:Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/XDownloads:49763Price:Free.Free Regsitration RequiredMichigan Tech Aspen Oneliner Notes. The easy-to-use graphical interface makes it an ideal tool for investigating the effects of network reconfiguration and temporary outages on power flow, system losses, area interchange and circuit overloading.
ASPEN Software - Introduction ASPEN is a very user-friendly software package that is capable of doing load-flow and short-circuit studies, as well as relay application and coordination. Its simple graphical user interface allows you to quickly draw the system one-line on the screen, and supply system. ASPEN Line Constants Program screen captures showing the physical configuration of two circuits in a single right of way The software also allows the user to split an entire right of way into different sections, each with a different physical. The result of the example calculation above can be checked by comparing it to the result from the line constant program. In order to make this comparison, CAPE program was used. In order to run this program, the actual line. ASPEN and CAPE simulator. A transformer rating software.
It isn’t very expensive though you have to have Matlab to use it.The plotter that comes with the program is not that good but there are various packages you can use that are better and interface with EMTP. OneLiner is a productivity tool. The engineer can change the relay settings and network configuration and see the results of the change immediately.
The engineer aspen oneliner software change the relay settings and network omeliner and see the results of the change immediately.The following are some highlights of OneLiner: I actually like it better than ATP-EMTP due to it being intuitive, no weird atp-emtp error codes, and it is integrated access to all aspen oneliner software graphing and Matlab math functions into Matlab. If you want to do anything more than just running a macros IDEVs you need to learn python. Michigan Tech Aspen Oneliner Tutorial. OneLiner is a productivity tool. The following are some highlights of the Power Flow Program.There is a module in the program for developing the parameters for transmission lines and cables, which with ASPEN you need softwade purchase as an aspen oneliner software package.Modeling of relays’ communication assisted protection schemes.You can customize the database for any relay type, including, but not limited to, overcurrent relays, distance lneliner, differential relays, and voltage relays. It is capable of relay coordination, transient and stability, grounding, ect.
ASPEN Software for Electric Utilities – ASPEN, Inc.aspen oneliner software It relieves the engineer from the tedious and time-consuming tasks of leafing through stacks of printouts and plotting ineliner re-plotting relay curves and one-line diagrams. The only thing about this package I didn’t like was that it wasn’t free.You can download aspen oneliner software zip file with the HASP monitor tool setup at this link. Some of these can be historical. Run the executable on you PC to start one,iner data conversion program. DistriView is designed for networks that has a mixture of 3-phase, 2-phase and single-phase network components, including unbalanced loads and shunts. Automatic plotting onneliner overcurrent and distance relay characteristics on the screen, as well as fault-based time-distance diagrams for all relay types.
Aspen Line Constants program. Modeling of over- and under-voltage protection relays. You need Windows Administrative privileges to install the device drivers. State-of-the-art Engineering Software for Electric Utilities.
Speed, ease-of-use and accuracy.The following are some highlights of the Onelinerr Flow Program: It relieves the engineer from the tedious and time-consuming tasks of leafing through stacks of printouts and plotting and re-plotting relay curves and one-line diagrams. Modeling of current-limited generators for wind and solar plants. A program that aspen oneliner software usually used for power flow and contingency analysis at the transmission level.High-quality printed outputs on a large variety of printers and plotters.Free evaluation copy of Powerworld. It is a pretty straight forward package to use.
Unlimited system size with modest memory requirement.
I am trying to refine our line constants calculations to account for differences between the calculations and actual faults. Our Z1 values seem pretty close, but it is quite clear that our Z0 values could be improved. Historically the line constants have been calculated considering only the three conductors of the transmission line (and mutual impedance with other adjacent transmission lines). As a first step I have added the under built distribution neutral into the calculations where present, and that makes a significant difference. There are a few other things that I'd like to be able to look at, but need a bit more information. Documented references would be great.1.
Does the presence of 750 VDC lines (light rail traction power) parallel to our AC lines need to be accounted for? If so, how?2. Are there any good references for calculation of the affect of rails as ground conductors, such as electrical properties of the rail and how the grounding of the rail (typically impedance grounded) should be accounted for?3.
In the development of the calculations in Anderson ( Analysis of Faulted Power Systems) he makes the assumption that any ground conductors are grounded at both ends; does the presence of multiple grounds alter the results?4. The calculations for the transformation from phase impedances to sequence impedances (Anderson) makes the assumption that there are three phases. What affect on the results would there be if instead of two circuits in phase with each other the lines in question have a mutual 30 degree phase shift?Thanks. RE: Line Constants Calculations (Electrical) 4 Jun 07 15:37. CAPE and ASPEN have a line constants analysis software package, but I believe they eventually go back to some form of the same equations as seen in Anderson. I do not know if they really could handle strange ground wires, such as railways or pipes.
From what I hear, the unusual cases you are looking into are beyond the typical formulas. Sounds like some finite element analysis is needed. Way out of my experience level.
The link should be on the left side of the page.3.Enter your serial numbers for the full game (ex. Trainz 12) and standalone game/dlc (ex. Note: the following problems are problems that only the author of this guide has expirienced. Be careful when performing step 3, your serial numbers are very important so make sure you enter them correctly. Trainz a new era sp3.
Aspen Line Constants Program Software Download
It might be neat if you could take the lines out of service long enough to measure Zo and the mutuals. Measuring Z0 should not be too hard conceptually, but I bet it would take quite a bit of manhours. I am not sure how you would measure mutuals, now that I think about. You inject current in one line, and measuring voltage at both ends of the other line, where the line ends are far apart.
It seems you need two extremely well synchronized voltage measurements that will be miles apart. That will be tricky.
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Am I correct on that?Also, since you are going so far with the calcs, it might be interesting to calculate the effect of non-uniformity of the lines arrangement on the sequence impedances. I know of no program that calculates how Z1 and Z0 and Z2 cross couple on non-uniform and non-transposed lines.
As non of the fault analysis software on the market can make use of the coupling coefficients, I guess it does not matter.RE: Line Constants Calculations (Electrical) 6 Jun 07 12:58. Jghrist,I saw the presentation of that paper at Georgia Tech and am very interested in getting lines tested, but testing requires the line be out of service and for critical lines that can be a major undertaking.
The testing can't calculate mutual coupling between lines unless both/all lines can be taken out of service for the testing. Not likely that both circuits on a pair of 230kV circuits can be taken out of service and absolutely no way that all circuits in a multi-circuit right-of-way can be taken out of service simultaneously. Testing will be a good tool, but it won't solve everything. I'll look at the sestech stuff when I have a bit more time.-JensenDrive,My calculations do include all couplings, both in the phase domain and in the sequence domain.
I can tell you how the negative sequence of one line couples to the zero sequence of another line in the same right-of-way, but I know of no practical use for that information, the matrix calculations provide it whether I can use it or not.-I figure that if including the under built distribution neutral drops Z0 by 20% then four steel rails will have a non-negligible affect.Some of it is also a matter of curiosity and may not have much impact on the calculations but it would be interesting to see if anybody has previously addressed these things. RE: Line Constants Calculations (Electrical) 6 Jun 07 20:20.
David - we recently had to verify Zo impedances on two 230 kV transmission lines and look at fault current distribution in overhead static wires, gas pipleines and distribution neutrals during power plant ground faults.A local company (Toronto) specializes in this testing, using a 55 Hz generator and spectrum analyzers. The generator injects a pseudo fault current in the system while CT and VT inputs to the spectrum analyzer record the currents and voltages at critical points. Multiple analyzers that are time synchronized via GPS can be used for large systems. The data is analyzed at 55 hZ and adjusted back to 60 to minimize the interference from load currents and system voltages. The result was calculated, measured and verified data for Zo and current splits.They claimed they could do the same test to measure line constants, and have done it on several 230 kv substaions with all lines in service. RE: Line Constants Calculations (Electrical) 7 Jun 07 00:18.
The responses below are the first impression assessment that may require further analysis to be confirmed.1. Since the DC line does not create mutual inductance, there is not effect on the positive and negative impedance on the AC line. However, the zero sequence may be considered if the neutral conductor of the DC line is grounded. This could be modeled as similar underbuilt AC grounded neutral conductor.2. See the enclose paper and references at the end of this publication.3. Multigrounded line could be modeled as several short lengths of lumped parameters in Pi configuration. For short line, this model may be expected to have close approximation.4.
Since the line impedance is consider as a linear transfer function, the effect of the phase shift may not have significant impact in the linear range of the impedance.RE: Line Constants Calculations (Electrical).