Assessment of Electrical Power Trans. System -Reliability Paradigam

Power system reliability indices play a major role in the planning and productivity performance operation of the polluted power system network. This is also a subject which has gained importance in the recent past, due to its robust activities in environmental conditions, because of the several interruptions, disturbances that take place in general operations. This disturbance could be of many types, like line outage, sudden loss of synchronism, abnormal operation, etc. The effective and efficient operation need to be developed for on-line monitoring at an earliest possible time. In view of the above adequate discussion and the applicable literature reviewed on power system reliability, the reliability evaluation of electric transmission systems mainly depend on three factors, such as, evaluation of bulk power system reliability indices, EHT AC sub-station reliability indices assessment and computation of distribution system reliability indices. Computation of these indices indicates the degree of reliability for the partial power system. Hence, the reliability examination is a well documented piece in the system risk and security studies.