Simulator 16 User Guide - PowerWorld

Auto Insert Contingencies
Simulator allows you to automatically generate a contingency list containing branch, generator and/or
bus outages. To accomplish this, click the Auto Insert button along the bottom of the Contingency
Analysis Dialog or right-click on the list of contingencies table in the Contingencies Tab and select
Insert Special > Auto Insert Contingencies…. This opens the Auto Insertion of
Contingencies Dialog.
When automatically inserting contingencies, you must specify the type, options and naming
conventions you want for the new contingencies. You must also specify whether to delete or retain
existing contingencies.
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Auto Insertion of Contingencies Dialog
The Auto Insertion of Contingencies dialog has the following controls:
Automatically generate contingency involving a…
The options available in this box define what to add to each automatically inserted contingency
element. You can choose single transmission line, transformer, transmission line or transformer,
generating unit, or bus contingencies. Choosing one of these options results in each contingency
containing only one element of the specific type.
You can also define contingencies containing multiple outages by checking the Combination of…
option, and then specifying how many of each type of element (Lines, Transformers, and Generating
Units) you want considered in the contingency. When you use the Combination of… option,
Simulator will automatically determine all possible combinations for the element types specified
(based on the settings in Optionsused to filter elements) and create the contingencies. Combination
contingencies do not currently allow the inclusion of bus contingencies.
Restrict to Parallel or Common
These options will be enabled if choosing to do combinations where more than 1 of either a
transmission line, transformer, or generator are specified.
No restrictions (All)
All combinations will be created.
Common substation
If multiple lines are to be grouped together, only combinations of lines where at least one
terminal of each line is in a common substation will be included. If multiple transformers are
to be grouped together, only combinations of transformers where at least one terminal of
each transformer is in a common substation will be included. If multiple generators are to be
grouped together, only combinations of generators that are in the same substation will be
included. There is no requirement that the combinations of different types of elements are
contained in the same substation. For example, combinations of lines with generators will
ensure that all of the lines grouped together are in the same substations and all of the
generators grouped together are in the same substation, but the groups of lines and
generators grouped together can be in different substations.
Common bus
This option works the same as the Common substation option except that common objects
are grouped such that they have a common bus instead of substation.
Parallel Branch (Common bus for gens)
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