ETAP Arc Flash Simulation Error

[supermanengineer]

am not able to run the Arc Flash Simulation it is giving me the error:

" Calculation Error: Memory mapped file for source contribution has insufficient size. The file size can be increased by setting the preferences entry No. of Upstream Contributing Branches to a larger number (Max=999)."

However ETAP is able to run the short circuit simulations.

 

[dpc]

I suspect that is because the SC calc does not have to keep track of individual branch contributions separately as it would in an arc-flash calculations.

Did you try doing what the error message suggested?

 

[supermanengineer]

There is an option on:

Tools>Preference>Arc Flash> No. of Upstream Contributing Branches

Change the number and it worked..