For a node, feeders/bays can be defined, by specifying their names on the tab Specials | Feeders. The order of the names of the feeders should match the order of the feeders on the node.
After the feeder names have been specified, each branches and element can be assigned to a certain feeder on their input form.
For a node with all the feeders assigned, the bus bar currents can be calculated for a load flow and a protection calculation.
•After a load flow calculation the largest bus bar current between two feeders will be compared to the rated current Inom of the bus bar.
•After a protection calculation in single fault mode, the largest I2t between two feeders will be compared to Ik,thermal and the corresponding time of the bus bar.
If any of these comparisons result in an violation of the limits, the node will be presented in a different colour.