AutoCAD MEP General Discussion

AutoCAD MEP General Discussion

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Contributor
chrism
Posts: 11
Registered: ‎03-26-2009
Message 1 of 3 (413 Views)
Accepted Solution

AutoCAD MEP 2013 Circuit Manager Conflict

413 Views, 2 Replies
08-09-2012 12:32 PM

Currently using AutoCAD MEP 2013 and came across an issue. When working with the circuit manager I noticed a difference between the circuit manager and what the actual panel schedule shows.

 

Example:

The panel is 208/120. The amps should be 162, not 281. It appears the SQRT(3) factor has been missed in the circuit manager. The panel schedule, however, accurately schedules the amps.

58500/208/sqrt(3) = 162 See attached images that show the difference between them.

 

Just curious if there is a fix for this or if any others have the same issue. (Incase it was something I did) I looked at past projects we did in MEP 2012 and the circuit manager matches the panel schedules.

 

Thanks,

Chris

 

 

Product Support
Joshua.Benoist
Posts: 517
Registered: ‎08-23-2006
Message 2 of 3 (381 Views)

Re: AutoCAD MEP 2013 Circuit Manager Conflict

08-13-2012 10:46 AM in reply to: chrism

This is a known issue.  It only affects 3-phase panels in circuit manager.  The value is off by a factor of SQRT(3) in Circuit Manager.  The value on the panel schedule is correct.  Our developers have been working to address this issue.

 

Joshua

 

 



Joshua Benoist, PE
Senior Support Specialist
Product Support
Autodesk, Inc.

New Member
bbrovont
Posts: 1
Registered: ‎08-14-2012
Message 3 of 3 (372 Views)

Re: AutoCAD MEP 2013 Circuit Manager Conflict

08-14-2012 06:17 AM in reply to: Joshua.Benoist

I have to say, I'm glad I just stumbled across this.  I thought I was losing my mind, trying to figure out why the circuit manager was showing the kVA numbers that it does.

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