Review of TADS Data for 2011 Voltage Class Name Metric AC Transmission Outages - Failed Protection System Equipment AC Transmissi on Outages - Human Error AC Transmission Outages - Failed AC Substation Equipment AC Transmission Outages - Failed AC Circuit Equipment AC Transmissi on Outages - Lightning AC Transmissi on Outages - Contaminat ion AC Transmiss ion Outages - Foreign Interfere nce Total Element Availabil ity Percentag e (APC) Transmiss ion System Unavailab ility AC Circuit 300-399 kV Outages per Circuit 0.0305 0.0677 00.1320 0.0508 0.2067 0.1667 0.0567 0.9300 98.0276 1.9724 AC Circuit 300-399 kV Outages per 100 miles per year 0.0933 0.2073 0.4042 0.1555 0.6426 0.5183 0.1762 300-399 kV Jan-11 Dec-11 # Circuits 290 310 Circuit Miles 9601.0 9845.6 Multi-circuit Structure Miles 2755.3 Automatic Outages Circuit Data Outage Information Count Duration (hrs) Automatic 279 1908.7 Non-Automatic 788 48190.3 Outage Data FaultTypes Count % Count % Duration % No fault 10 6.80% 50 37.88% 652.07 34.16% P-P fault 0 0.00% 7 5.30% 677.6 35.50% P-G fault 135 91.84% 68 51.52% 547.45 28.68% P-P-G, 3P, or3P-G fault 2 1.36% 6 4.55% 30.02 1.57% Unknow n 0 0.00% 1 0.76% 1.53 0.08% Total 147 132 1908.67 Mom entary Sustained Outage Information Count Duratio n (hrs) Two Elements 18 319.03 Three Elements 1 13.10 Four or More Elements 2 58.75 Multiple Element Automatic Outages
Circuit Data. Outage Data. Review of TADS Data for 2011. Automatic Outages. Multiple Element Automatic Outages. Review of TADS Automatic Outage Data for 2011. Review of TADS Planned Outage Data for 2011. Review of TADS Planned Outage Data for 2011. TADS Comparison, 2011 vs 2010. - PowerPoint PPT Presentation
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