WinIGS - grounding software
WinIGS - grounding software
(OP)
Anyone use this software? I'm new to it and have a few questions.
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WinIGS - grounding software
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RE: WinIGS - grounding software
Gunnar Englund
www.gke.org
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Half full - Half empty? I don't mind. It's what in it that counts.
RE: WinIGS - grounding software
You best bet for technical questions and support is to contact Dr. Sakis Meliopoulos at his company Adavanced Grounding Concepts. The website is www.ap-concepts.com/contacts.htm
RE: WinIGS - grounding software
Since you are a user,just for curiosity,may I ask you this question.
Does the program model the soil as uniform two layer or otherwise?
RE: WinIGS - grounding software
umrpwr, I have sent Sakis a few questions, he has responded so far, I was just hoping to find some additional resources, such as a user group or similar, I am not sure such a thing exists though. If you don't mind answering, I have a simple model that I am trying to obtain a GPR on, basically it consists of a utility power source, 44/4.16 kv transformer, and grounding grid. I have a node on either side of the transformer and have connected the ground grid on the primary side. Now the odd thing is my results, the GPR does not seem to change no matter how I vary the grounding grid, my step and touch equipotential plots are in the pV range as well, this seems odd to me but I cannot figure out why.
RE: WinIGS - grounding software
I haven't used WinIGS, but have reviewed analyses done with it. One feature that I don't like is the way it calculates the current split between shield wires and ground grid. Instead of using the Ø-grd fault current calculated by a separate fault analysis program, you construct a system model and WinIGS calculates the fault current. You end up with a total fault current that is different from that calculated by your normal fault current program.
I prefer the method used by SES where you enter the fault current and the characteristics of the incoming lines and connected source substations.
RE: WinIGS - grounding software
RE: WinIGS - grounding software
I am not sure if I understood your concern regarding the fault current calculated by the program.
The main point is that the program is able to calculate the injected current into the ground as required for grounding calc instead the total fault current.
This is a great advantage if compare with other grounding programs that the split factor is to be input (usualy assumed).
Other advantage is that the program determine the worst case scenario after many automatic iterations usually located somewere in the line outside the substation.
In addition to model concrete foundations, the program could take credit for modeling metallic fence and other structure in the facility.
RE: WinIGS - grounding software
RE: WinIGS - grounding software
I have used WinIGS and there are few things this software interprets Neutral and Ground.. in a different fashion...
u can send ur model to Sakis and analyze this on the phone with him... I have done it few times and he was very helpful....
besides that there are grounding gurus like "Jghrist" who are very kind and generous in their time while explaning these issues.....
trust me I leanred grounding from this website specially jghrist replies....