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 Post subject: Utility Transformer Short Circuit Current
PostPosted: Tue Jul 09, 2019 10:36 am 

Joined: Wed Jul 03, 2019 8:03 am
Posts: 1
Anyone aware of any regulations requiring the utility to provide short circuit current for utility supplied transformers?

My utility is telling me they are too busy to provide such data and to just use the "infinite bus" method.

Thanks.


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 Post subject: Re: Utility Transformer Short Circuit Current
PostPosted: Tue Jul 09, 2019 11:40 am 
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Joined: Fri Jul 08, 2016 10:01 am
Posts: 227
Location: Indiana
Here are a couple of threads on this common problem and suggestions on how to handle it:

viewtopic.php?f=4&t=4439

viewtopic.php?f=4&t=4507

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 Post subject: Re: Utility Transformer Short Circuit Current
PostPosted: Mon Jul 29, 2019 8:48 am 
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Joined: Tue Oct 26, 2010 5:00 pm
Posts: 188
Location: Maple Valley, WA.
We have attached several items to our utility data sheet in the attempt to educate them in the importance of having accurate utility data.

See https://webstore.ansi.org/standards/nema/nemaabp102015

Also see the last 6 pages of our utility data sheet that I have uploaded to the forum.


You do not have the required permissions to view the files attached to this post.

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