You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Browse the tutorials and tests for usefull code snippets and examples of use
Issue
Hi there
I am using the software for short circuit levels investigations. I came upon the following situation:
circuit(violet2)
bus 0 - 69 kV
bus 1 - 69 kV
external grid (69 kV, 1000 MVA, rx=22)
external grid----->bus0(source_1)-->line(CB27_LT)-->bus1(T2PRIM).
It is a very simple circuit, downsized from fig. 4-1 - IEEE Std 551-2006 - Violet Book
The short circuit level at bus1(T2PRIM) evaluated by hand is 6797 A. Essentially the same as resulting from other packages.
The result from Panda Power is 7135 A, which I found to be 1.05 x 6797. Now I know that, given the 69 kV system, a factor of 1.1 should be applied as per the IEC 69909 recommendation. That should give me 7476 A in Panda Power.
Would someone comment on this?
Thanks
Label
Relevant labels are selected
The text was updated successfully, but these errors were encountered:
Thank you for the interest. As far as I see, the calculation by hand is the best test I can do.
I am not knowledgeable enough to check the internal routines of the software.
Regards
Dear @mrsilvabr ,
please provide your hand calculation and your pandapower calculation code so we can evaluate the difference.
In pandapower, C factor is considered as 1.1 based on IEC60909 code for the buses over 1 kV voltage level.
Please follow the attached link and check your input parameter accordingly.
gbanerjeefraunhofer, thank you for the answer.
I have been involved in a new project, with my hands an head full. I will do as you instructed me but it is going to take a few weeks.
I will get back as soon as I can.
Feature Checklist
Searched the issues page for similar reports
Read the relevant sections of the documentation
Browse the tutorials and tests for usefull code snippets and examples of use
Issue
Hi there
I am using the software for short circuit levels investigations. I came upon the following situation:
circuit(violet2)
bus 0 - 69 kV
bus 1 - 69 kV
external grid (69 kV, 1000 MVA, rx=22)
external grid----->bus0(source_1)-->line(CB27_LT)-->bus1(T2PRIM).
It is a very simple circuit, downsized from fig. 4-1 - IEEE Std 551-2006 - Violet Book
The short circuit level at bus1(T2PRIM) evaluated by hand is 6797 A. Essentially the same as resulting from other packages.
The result from Panda Power is 7135 A, which I found to be 1.05 x 6797. Now I know that, given the 69 kV system, a factor of 1.1 should be applied as per the IEC 69909 recommendation. That should give me 7476 A in Panda Power.
Would someone comment on this?
Thanks
Label
The text was updated successfully, but these errors were encountered: