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2011 | OriginalPaper | Buchkapitel

3. Definition of Reliability and Risk

verfasst von : Marko Čepin

Erschienen in: Assessment of Power System Reliability

Verlag: Springer London

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Abstract

Because of the many different operational requirements and varying environments, reliability means different things to different people. The generally accepted definition of reliability defines the reliability as the characteristic of an item expressed by the probability that it will perform a required function under stated conditions for a stated period of time. The term reliability is divided to two terms when dealing with the power systems. Those two terms are adequacy and security. The adequacyadequacy is related to the existence of sufficient generation of the electric power system to satisfy the consumer demand. The securitysecurity is related to the ability of the electric power system to respond to transients and disturbances that occur in the system. RiskRisk is a combination of a probability for an accident occurrence and resulting negative consequences. Risk is often reserved for random events with negative consequences to human life and environment.

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Metadaten
Titel
Definition of Reliability and Risk
verfasst von
Marko Čepin
Copyright-Jahr
2011
Verlag
Springer London
DOI
https://doi.org/10.1007/978-0-85729-688-7_3