Electrical Engineering Software
Electrical Engineering Software
(OP)
Different question from thread238-157322:
Do any of you feel it is required to verify Electrical Engineering Software short circuit, load flow or arc flash analysis, such as those from SKM, ETAP, EDSA, etc., with hand calculations? Is the software mature enough (years of being in service) to not perform hand calculation verification?
If you had to stamp (PE) the computer model results (versus no stamp required) would you verify by hand (short/quick calculation) that the computer results were within 'reason'? Is there a difference between the two?
Does it depend on the project size?
Any common practice out there?
Do any of you feel it is required to verify Electrical Engineering Software short circuit, load flow or arc flash analysis, such as those from SKM, ETAP, EDSA, etc., with hand calculations? Is the software mature enough (years of being in service) to not perform hand calculation verification?
If you had to stamp (PE) the computer model results (versus no stamp required) would you verify by hand (short/quick calculation) that the computer results were within 'reason'? Is there a difference between the two?
Does it depend on the project size?
Any common practice out there?
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This is normally the space where people post something insightful.






RE: Electrical Engineering Software
RE: Electrical Engineering Software
RE: Electrical Engineering Software
Getting the parameters of plant and/or the network configuration wrong are the most likely sources of errors. For voltage and powerflow calculations real measurements should correlate closely with calculations, however, it has been my experience it is hoghly possible that all other things being correct that the results from measurement may be less accurate than the calculation. This points again to having a good understanding of what you are calculation and explaining any differences.
There are potential difficulties with most software in carrying out hv network calculations wrong from the point of view of voltage and circuit loadings because you have not set generators up correctly so that they are supporting voltage way beyond their capability. e.g. set a voltage control set point without placing limits on the VAR capability particularly on the slack bus.