The
 source can be set as a transformer supply or a  busbar with a specified
 short circuit level. If a transformer source is  used, the short 
circuit level on the primary side can be set to infinity  by setting the
 data field blank.
  
Add
 components one by one to build up a single line  diagram. The 
components can be cables, transformers and a motor. After a  component 
has been added, its data can be edited by clicking on the  component 
when displayed on the screen.
  
Click
 on 'Calculate' button to estimate the short  circuit currents at each 
busbar. The calculations are approximate and  factor in short circuit 
current contributions from the source and  maximum of one motor only. 
Click on 'Mail' button to send all the  equipment data and calculation 
results by email.
 
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