Can you create a new Single Line? I think I've had that before, but was able to rebuild it with a new one (although this takes time). Just select an existing component like the utility with CTRL-I and expand from there with CTRL-E.

Given that this website is aimed at arc flash hazards and their analyses, I would suggest there are more relevant places to post SKM questions that aren't related to arc flash...

• SKM Power Tools User Group (search Groups on LinkedIn)

...or more general groups/forums like...

• Power System Analysis Tools Group (search Groups on LinkedIn)
• Electrical Power System Analysis and Control (search Groups on LinkedIn)
• Electrical Power & Transmission & Distribution Forum (search Eng-Tips for a forum of this name)

Unfortunately, I'm not yet permitted to post links!

Have you done the standard cleanup procedures?
1. Run RegDel
2. Run Database Utility on project?
3. Ctrl+Shift when opening project to validate?

Whenever I have my fortnightly/monthly crash, doing at least 1 & 2 seems to work for a while. If the project is small enough, I do 3 as well which is even better, but on big projects (1000 buses/10 scenarios) it takes too long (8hrs plus)

Actually, the FIRST thing to do is to contact support at SKM. Call, complain, raise a fuss. They can't fix what they don't know about!
[And they won't fix what peopl;e don't complain about]

{And then THEY will tell you to do the Cleanup ScoptPET talks about }
They RARELY have me do the regdel for this sort of issue.
If you are expired however.....

I would suggest that FIRST you do a backup. Then open the backup project and see if you still have the issue with the oneline.
If you do, then, close the project, and then run the database utility. [From the Project Menu, it is not available when the database is open].
Click on all of the box items, and tell it ok.
Then, after it is done, you can run it though a validation. [Ctrl Shift while you open the project name]

WIth big projects, lots of busses and scenarios, it does take some time. I have never had it take8 hrs plus though. 2-3 hours yes easially.
With small projects however you won't have time to finish a coffee.

A representative from SKM posted a response to some of these concerns on another thread in this forum. It is the last post on the thread.

I added the link here to the post for everyone.

[url='http://www.arcflashforum.com/threads/2479/'][SKM Thread][/url]

If you have not contacted SKM or do not have support here is an option:
Validate your project
[url='http://www.skm.com/faq_genPtw14.html']http://www.skm.com/faq_genPtw14.html[/url]

if that is not the issue you may have to rebuild the one-line - not the project just the one-line. this is done using expand function.

Lastly, if these don't work - try exporting the project into an new project.

Thanks all !! got my one-line fixed. I have used all the above mentioned tips.

The tip that worked for me was merging the project into the blank project. Before merging the project I did validation as well as ran the database utility.