2.0 RELIABILITY AND STABILITY 2.1 Background The overall reliability of the bulk electric power network has been given the highest priority by the utilities and the FPC. The * following are some of the many aspects of system reliability. • The assurance of sufficient generating and transmission capacity, in view of the projected loads and equipment availability, so that the Loss of * A Load Probability (LOLP) shall not exceed the design level; • The reliable operation of the individual pieces of equipment; • The ability to withstand the sudden loss of a major generator or transmission line, without inducing any other outages; • The ability to withstand line faults without forcing any generators to shut down; • The minimization of system breakdown, as measured by loss of generation, cascading line outage, and loss of load when disturbances more severe than expected may occur; and a "Design of Electric Power Systems for Maximum Service Reliability" by C. Concordia, CIGRE, 1968, Report No. 32-08. Probability that power demand exceeds generation capacity.
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