TADS Metrics. Updated: January NERC Report Title Report Date I

Transcription

1 TADS Metrics Updated: January 2016 NERC Report Title Report Date I

2 Table of Contents Metric Formulas Below 200kV...1 General Formulas...1 TADS Phase II Metrics and Updated Phase I Metrics...2 Metric Formulas 200kV and Above...3 General Formulas...3 TADS Phase II Metrics and Updated Phase I Metrics...4 ii

3 Metric Formulas Below 200kV The Transmission Availability Data System Metrics are meant to be applied to elements 200kV and below. These elements are collected beginning January 1, 2015 by NERC in accordance with the NERC Bulk Electric System (BES) definition. General Formulas Element Outage 2 Element Sustained Outage Total Sustained / Total Elements No. Sustained per Element per SOF Element Outage Duration, Repair Time, and Up Time 4 Element Sustained Outage Duration Total Sustained Outage Hours / Total Average no. of Sustained SODT Time Elements Hours per Element per 5 Element Sustained Outage Mean Total Sustained Outage Hours / Total Average no. of Sustained Outage MTTR Time to Repair Sustained Element Hours per outaged Element 6 Median Time to Repair Sustained The time when 50% of the Mean Time to Median no. of Sustained Outage Hours MdTTR Element Outage Failures Repair minutes are greater than this figure per outaged Element 7 Mean Time Between Sustained (Total Element Hours -Total Sustained Mean (average) no. of hours of MTBF Element (Mean "Up Time"). Also referred to as Mean Time Between Failures. Outage Hours) / Total Sustained Element operation of an Element before it fails Element Availability 8 Element Availability [1-(Total Sustained Outage Hours / Total Element Hours)] * 100 APC 10 Percent of Element Automatic associated with a Disturbance Report (EOP004) Total Automatic associated with a Disturbance Report / Total Automatic Circuit Outage, per 100 Circuit Miles (Applies to AC and DC Circuits Only) 12 Circuit Sustained Outage, Mileage Adjusted (Total Circuit Sustained *100) / Total Circuit Miles No. Sustained per 100 Circuit Miles per SCOF100CT mi Multiple Circuit Outage per 100 Multi-Circuit Structure Miles (For AC Circuits, multi circuit outages are Event Type 31 outages; for DC Circuits, they are Event Type 31 outages.) 15 Multi-Circuit Sustained Outage (Total Multi-Circuit Sustained *100) / Total Multi-Circuit Structure Miles No. Sustained per 100 Multi- Circuit Structure Miles per SMCOF100 STmi PCDR 1

4 Metric Formulas Below 200kV TADS Phase II Metrics and Updated Phase I Metrics Element Availability 14 Maximum Percent of Simultaneous Element This will be calculated by taking all Element outages and searching for the time when the maximum number are out due to Sustained Automatic. MSIM 2

5 Metric Formulas 200kV and Above The Transmission Availability Data System Metrics are meant to be applied to elements 200kV and above. Non-Automatic Planned data collection have been discontinued as approved by the NERC Board as of November 4, TADS Elements are collected by NERC in accordance with the NERC Bulk Electric System (BES) definition beginning in January 1, General Formulas Element Outage 1 Element Total Automatic Outage Total Automatic / Total Elements No. Automatic per TOF Element per 2 Element Sustained Outage Total Sustained / Total Elements No. Sustained per SOF Element per 3 Element Momentary Outage Total Momentary / Total Elements No. Momentary per Element per MOF Element Outage Duration, Repair Time, and Up Time 4 Element Sustained Outage Duration Total Sustained Outage Hours / Total Average no. of Sustained SODT Time Elements Hours per Element per 5 Element Sustained Outage Mean Total Sustained Outage Hours / Total Average no. of Sustained Outage MTTR Time to Repair Sustained Element Hours per outaged Element 6 Median Time to Repair Sustained The time when 50% of the Mean Time to Median no. of Sustained Outage MdTTR Element Outage Failures Repair minutes are greater than this figure Hours per outaged Element 7 Mean Time Between Sustained (Total Element Hours -Total Sustained Mean (average) no. of hours of MTBF Element (Mean "Up Time"). Also referred to as Mean Time Between Failures. Outage Hours) / Total Sustained Element operation of an Element before it fails Element Availability 8 Element Availability [1-(Total Sustained Outage Hours / Total APC Element Hours)] * of Elements with Zero Automatic Total Elements with Zero Automatic / Total Elements PCZO 10 Percent of Element Automatic associated with a Disturbance Report (EOP004) Total Automatic associated with a Disturbance Report / Total Automatic PCDR 3

6 Metric Formulas 200kV and Above Circuit Outage, per 100 Circuit Miles (Applies to AC and DC Circuits Only) 11 Circuit Total Outage, (Total Circuit Automatic *100) / No. Automatic per 100 TCOF100CTmi Mileage Adjusted Total Circuits Miles Circuit Miles per 12 Circuit Sustained Outage, (Total Circuit Sustained *100) / No. Sustained per 100 SCOF100CTmi Mileage Adjusted Total Circuit Miles Circuit Miles per 13 Circuit Momentary Outage (Total Circuit Momentary *100) / Total Circuit Miles No. Momentary per 100 Circuit Miles per MCOF100CTmi Multiple Circuit Outage per 100 Multi-Circuit Structure Miles (For AC Circuits, multi circuit outages are Event Type 31 outages; for DC Circuits, they are Event Type 31 outages.) 14 Multi Circuit Total Outage (Total Multi-Circuit Automatic *100) / Total Multi-Circuit Structure Miles No. Automatic per 100 Multi-Circuit Structures Miles per TMCOF100STmi 15 Multi-Circuit Sustained Outage 16 Multi-Circuit Momentary Outage (Total Multi-Circuit Sustained *100) / Total Multi-Circuit Structure Miles (Total Multi-Circuit Momentary *100) / Total Multi-Circuit Structure Miles TADS Phase II Metrics and Updated Phase I Metrics No. Sustained per 100 Multi-Circuit Structure Miles per No. Momentary per 100 Multi-Circuit Structure Miles per SMCOF100STmi MMCOF100STmi Element Outage 3 Element Operational Outage Total Operational / Total Elements No. Operational per Element per OOF Element Outage Duration and Outage Time 10 Element Total Operational Outage Duration Time Total Operational Outage Hours / Total Elements Average no. of Operational Hours per Element per OODT 11 Mean Total Operational Outage Duration Time Total Operational Outage Hours / Total Operational Outage Elements Average no. of Operational Hours per Element per MOOT 4

7 Metric Formulas 200kV and Above 12 Median Total Operational Outage MdOOT Duration Time The time when 50% of the Mean Total Operational Outage Time are greater than this figure. Average no. of Operational Hours per Element per 5