What is pre contingency and post contingency?

The static security level of a power system is characterized by the presence or otherwise of emergency operating conditions (limit violations) in its actual (pre-contingency) or potential (post contingency) operating states. System security assessment is the process by which any such violation are detected.

What is Post contingency?

Post contingency– It is the state of the power system after the contingency has occurred.It is assumed that this type of the contingency has the security violations such as the line or transformer are beyond its flow limit or the bus voltage is within its limit.

What is a post contingency state on the power system?

 Post contingency: It is the state of the power system after a contingency has. occurred, it is being assumed that this condition has a security violation such as. line or transformer are beyond its flow limit, or a bus voltage is outside the limit.

What is contingency ranking in power system?

The contingency ranking using the performance index is a method for the line outages in a power system, which ranks the highest performance index line first and proceeds in a descending manner based on the calculated PI for all the line outages. This helps to take the prior action to keep the system secure.

What does contingency mean in Project Management Institute?

Newtown Square, PA: Project Management Institute. Contingency, an amount of funds added to the base cost estimate to cover estimate uncertainty and risk exposure, is a topic of interest for both project managers and sponsors alike.

Which is the best definition of a contingency?

Risk Contingency is: Amount of funds included to cover risk exposure as measured by the cumulative, and potentially correlated, expected monetary value (EMV) of project risks; and Not intended to be a blank check to hide mistakes made in the execution of the project.

Why is contingency included in a project cost estimate?

Incorporation of contingency into authorized total project cost allows a project management team to cover estimate accuracy and risk exposure, thereby improving transparency and reducing the tendency for some projects to drive contingency underground.

How does a project affect the contingency in reserve?

Thus, as the project proceeds, two aspects affect the contingency: the first is the net depletion of the contingency due to these movements; the second is the determination of the remaining contingency referred to herein as contingency in reserve.