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AutoCAD MEP 2013 Circuit Manager Conflict

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Message 1 of 3
chrism
635 Views, 2 Replies

AutoCAD MEP 2013 Circuit Manager Conflict

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

 

 

2 REPLIES 2
Message 2 of 3
Joshua.Benoist
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 Premium Services Specialist
Global Services
Autodesk, Inc.

Message 3 of 3
bbrovont
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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