IEEE 762-2006 pdf download IEEE Standard Definitions for Use in Reporting Electric Generating Unit Reliability, Availability, and Productivity
1.1 Scope
This document standardizes terminology and indexes for reporting electric generating unit reliability.availability, and productivity performance measures while recognizing the power industry’s needsincluding marketplace competition, This standard also includes equations for equivalent demand forcedoutage rate (EFOR),newly identified outage states, discussion of commercial availability, energyweighted equations for group performance indexes, definitions of outside management control (OMC).pooling methodologies, and time-based calculations for group performance indexes.
1.2 Purpose
This standard is intended to aid the electric power industry in reporting and evaluating electric generatingunit reliability, availability, and productivity. lt was originally developed to overcome difficulties in theinterpretation of electric generating unit performance data from various systems and to facilitatecomparisons among different systems. The standard also makes possible the exchange of meaningful dataamong systems in North America and throughout the world.
2.Normative references
The folowing referenced documents are indispensable for the application of this document. For datedreferences, only the edition cited applies. For undated references, the latest edition of the referenceddocument (including any amendments or corrigenda) applies
None
3. Definitions
This clause provides the conceptual definitions of the basic performance indexes while the equations tocalculate the indexes are included in Clause 8 or Clause 10. The specific subclause in Clause 8 or Clause 10is referenced for each defined term.
3.1 availability factor (AF): The fraction of a given operating period in which a generating unit isavailable without any outages.NOTE–See 8.6.
3.2 demand forced outage rate (FOR,): A measure of the probability that a generating unit will not beavailable due to forced outages when there is demand on the unit to generate.
NOTE–See 8.16.2.
3.3 derating adjusted utilization forced outage probability (DAUFOP): A measure of the probabilitythat a generating unit will not be available when needed (derating included)
NOTE_See 8.17.3.
3.4 equivalent availability factor (EAF): The fraction of a given operating period in which a generatingunit is available without any outages and equipment or seasonal deratings.
NOTE–See 8.11.
3.5 equivalent availability factor excluding seasonal deratings (EAFxs): The fraction of a givenoperating period in which a generating unit is available without any outages and equipment deratings.
NOTE–See 8.11.1.
3.6 equivalent forced outage factor (EFOF): The fraction of a given operating period in which agenerating unit is not available due to forced outages and deratings.
NOTE–See 8.20.
3.7 equivalent forced outage rate (EFOR): A measure of the probability that a generating unit will not beavailable due to forced outages or forced deratings.
NOTE–See 8.17.
3.8 equivalent demand forced outage rate (EFOR,): A measure of the probability that a generating unitwill not be available due to forced outages or forced deratings when there is demand on the unit togenerate.
NOTE–See 8.17.2.
3.9 equivalent forced outage rate total-generating or other functions (EFOR-): A measure of theprobability that a generating unit will not be available due to forced outages or forced deratings includingthe exposure to nongenerating functions.
NOTE–See 8.17.1.
IEEE 762-2006 pdf download
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