2 WECC TRD and NERC TADS Brian Keel, Salt River Project TRD and TADS TimelinesHow TRD and TADS fit togetherReview of SpreadsheetsDifferences in TRD – TADS, attributesDoug Tucker, WECCData Gathering Discussion & ResultsWECC Data Handling
3 WECC Transmission Reliability Database Started as sub group of the Reliability SubcommitteeSpring 2004WECC PCC - OC 2005, re-tool for attributesFormed TRDTF Fall 2005WECC PCC, OC and Board approved Fall of 2006Purposes of TRD:WECC PCC GoalWECC PCC and OC presentations over 2005Completed with added physical attributes
4 WECC Transmission Reliability Database Purpose of the TRD DevelopmentTransmission Outage DatabasePCUR, used with Performance Category Upgrade RequestsPrimary Use - RPEWG – monitor, evaluate and report performance to WECC, core charge of RPEWGWECC transmission line performance and trackingFacilitate probabilistic planningProvide common format for data collection, i.e., all of Western adopted for their use
5 Purpose of the TRDIn a 1996 WSCC survey, 90%, criteria expanded to be more probabilistic based.PBRC Phase I development and implementation of event probabilities into Performance Table. Table S-1Ultimate goal is to produce a more economically efficient system without sacrificing system reliability.
6 WECC TRD and NERC TADS WECC TRD Sheets Transmission Circuit Attribute TableSame as last year; Miles, Type, Voltage, Conductors per Phase, Overhead Ground Wires, Insulation Type, Cable Type, Structure Materials, Structure Types, Circuits per Structure, Terrain Exposure, Elevation Exposure.Transformer Attribute TableSame as last year; High and Low Side kV, Single or Multi, Rating.
7 WECC TRD and NERC TADS WECC TRD Documents User’s Manual for Reporting WECC Common Transmission Outage DataForced Outage Performance of 200kV and above Transmission Lines, Cables and TransformersInput Data Sheets formedCosts of WECC Members and cost to WECC developed, presented and budgeted
9 WECC TRD and NERC TADS RPEWG Members of the RPEWG (includes WECC Staff as Members of RPEWG) only have access to raw outage dataRPEWG Members listed on the WECC websiteAccess to data governed by RPIC, Approved Exhibit CRaw outage performance compared to criteria of WECC Performance Criteria Table W-1
10 WECC TRD and NERC TADS TADS (TRD) overview NERC wide data collection AC circuits >= 200kVTransformers Low Side >= 200kVAC/DC Back to Back Converters >= 200kV AC VoltageDC Circuits >= +/-200kV
11 WECC TRD and NERC TADS TADS Forms 1.1 Non – Reporting TO Statement1.2 Reporting TO Statement2.1 Tie Lines and Jointly Owned AC & DC2.2 Jointly Owned AC/DC BTB Converters3.1 AC & DC Circuit Inventory Data3.2 Transformer Inventory Data3.3 AC/DC BTB Converter Inverter Data3.4 Summary Automatic Outage Data4.1 AC Circuit Detailed Outage Data4.2 DC Circuit Detailed Outage Data4.3 Transformer Detailed Outage Data4.4 AC/DC BTB Converter Detailed Outage Data5.0 Event Code DataIndicates WECC Members fill in these NERC TADS FormsIndicates NERC data to be supplied by WECC from TRD Sheets
12 WECC TRD and NERC TADS Form 1.1 Non – Reporting TO Statement TOS who do not own TRD/TADS ElementsContinuous submittal, “Once is Not Enough”Form 1.2 Reporting TO InformationBusiness ContactList of which Forms completedNERC confidentiality default status of TO data
13 WECC TRD and NERC TADS Form 2.1 Tie Lines and Jointly Owned Each Tie Line (s) TO has ownershipMutual agreement and discussion between TOs
14 TRD Sheet ReviewGo to Each Individual Sheet for Discussion of individual column:
15 Transmission Availability Database - TADS TADS Metrics Calculated:Inventory of AC & DC EquipmentCircuit & Transformer Outage F & D per outage initiation codeCircuit Sustained and Momentary Outage Metrics, Element or Other Initiated
16 TRD and TADS Differences TRD Data Differences:Focus to Common Corridor Outages (RPEWG)Physical Attribute Data InputsCircuits;Outage Rates perConductors per PhaseNumber of Ground WiresInsulator TypeStructure MaterialStructure TypeTerrain ExposureElevation Range
17 Phase II DesignPhase II TADS designed to expand the collection of Phase I outage data to:Planned OutageOperational Outage – non automatic outage for purpose of avoiding emergencyData collection will commence in 2011 for CY2010 dataMetrics Calculated:Non – automatic outage frequency per elementOutage Duration per ElementMean Element outage timeMedian Element outage timePercent of Elements without outageMax percent of simultaneous outage
18 Phase II Design Phase II: Non – automatic Outage data will compliment Phase I dataComplete outage information may influence StandardsMay allow bridging the gap between Planning and Operating environmentsU.S. – avoids duplicative reporting for EIA non – automatic outage reportingCare used in evaluation or using data:Live line maintenanceRegion to region comparisons are not recommended
19 TRD & TADS Timelines SEP 1st 2009 Forms 1.1, 1.2 & 2.1 FEB 1st 2010 Reporting & Non – Reporting Transmission Owner SheetsJointly-Owned AC & DC CircuitsFEB 1st 2010All 2009 Automatic Outage Data to WECCMAR 1st 2010WECC Data Submittal to NERC
20 WECC TRD and NERC TADS New Items for 2009: Sustained Outage Cause Code “Unavailable” was removedInitiating and Sustained will both need enteredEach TO must keep 5 years of supporting data for auto outage submittalsPhase II startsTraining will be held late 2009, either WECC or NERC giving this training, 1 to 1 translation (WECC)
21 Role of Regional Entities The process involves a coordinated effort between NERC and the Regional Entities. This coordination is critical to the success of TADS. Regional Entities are responsible for the following tasks:Request data from TOs.Review tie lines and jointly-owned facilities to ensure that a single TO is responsible for TADS reporting.Review inventory and outage data for consistency and completeness (but do not review a TO’s source data).Assign common Event ID Codes for Events affecting more than one TO in their region.Evaluate AC Circuit outages on common structures when the circuits are owned by different TOs.