# contingencies after changing switching states

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Dr. Stephen Elbert
contingencies after changing switching states

In the case of a contingency K defined by the outage of a grid element J that was already disconnected in the base case, all of the general rules apply:

• A contingency K solution file needs to be written.
• Element J should not be included in the contingency K solution file.
• The constraints on the contingency K solution are those listed in the formulation. In particular, the contingency K solution need not be the same as the base case solution.