Simulator 16 User Guide - PowerWorld

This area deals with lines used as ties between breakers. These lines are modeled as zero
impedance connections. The identification of a branch as a bus tie depends on the value specified as
the Maximum P.U. Impedance for Bus Ties. Branches with total P.U. impedance below this
value will be considered bus ties when auto-inserted.
In this area two choices are given for how to insert the bus tie breakers: Do not insert stubs for
bus ties and Only insert a single circuit breaker. The first choice allows you to decide if line
stubs will be drawn when the tie breaker is inserted. The second sets whether or not only one circuit
breaker is inserted on the tie breaker. This could be useful for determining real lines from bus tie
breakers.
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