Doug Tucker Associate Staff Engineer TRD/TADS update and Future reporting

2 TADS data collection New Event Type code mapping Future reporting CY 2013 Collecting Inventory data Quarterly reporting Collection of less than 200kV (BES) Agenda

3 TADS Outage Information (mandatory) WECC Collects Data in Addition to TADS (voluntary) o Transmission Line Inventory o Transformer Inventory o Common Corridor Inventory Annual Process Elements 200 kV and Above TADS Data Collection

4 1.1 Non – Reporting TO Statement 1.2 Reporting TO Statement 2.1 Tie Lines and Jointly Owned AC & DC 2.2 Jointly Owned AC/DC BTB Converters 3.1 AC & DC Circuit Inventory Data 3.2 Transformer Inventory Data 3.3 AC/DC BTB Converter Inverter Data 3.4 Summary Automatic Outage Data 4.1 AC Circuit Detailed Outage Data 4.2 DC Circuit Detailed Outage Data 4.3 Transformer Detailed Outage Data 4.4 AC/DC BTB Converter Detailed Outage Data 5.0 Event Code Data 6.1 AC Circuit Non Automatic Outage Data 6.2 DC Circuit Non Automatic Outage Data 6.3 Transformer Non Automatic Outage Data 6.4 AC/DC BTB Converter Non Automatic Outage Data Indicates WECC Members fill in these NERC TADS Forms Indicates NERC data to be supplied by WECC from TRD Sheets TADS Forms For CY 2012

5 1.TO’s complete and submit the TRD spreadsheets to WECC staff o Consists of the following:  NERC forms: 1.1, 1.2, 2.1, 2.2, 3.3, 4.4, 6.4  WECC forms: Transmission Inventory, Transformer Inventory, Common Corridor and Outages 2.WECC staff converts the WECC forms into the NERC Format. o WECC forms convert to the following NERC forms  3.1, 3.2, 3.4, 4.1, 4.2, 4.3, 5.0, 6.1, 6.2, WECC staff uploads all the NERC forms onto webTADS Existing WECC Process

6 Event Type Code Mapping Current Event Types New Event Types #10#11 #20#11 #30#31 #40#31 #50#50 replaced with these Event Types: Normal Clearing – 05, 06, 13 and 49; Abnormal Clearing – 60, 61, 62 and 90

7 TADS New Event type Codes Normal Clearing 05- Single bus section fault or failure (200kV or above) resulting in one or more Automatic Outages Single internal circuit breaker fault (200kV or above) resulting in one or more Automatic Outages Automatic Outage of a single Element Automatic Outage of two or more Elements within one Normal Clearing Circuit Breaker Set (NCCBS) Automatic Outages of two or more TADS adjacent AC Circuits or DC Circuits on common structures. To qualify as Event Type 31 the Automatic Outages must be the direct result of the circuits occupying common structures Automatic Outage(s) with Normal Clearing not covered by Event Types 05 through 31 above.

8 ●60 - Breaker Failure: One or more Automatic Outages with Delayed Fault Clearing due to a 200kV and above circuit breaker being stuck, slow to open or failure to interrupt current. ●61- Dependability (failure to operate): One or more Automatic Outages with Delayed Fault Clearing due to failure of a single Protection System (primary or secondary backup) under either of these conditions: o failure to initiate the isolation of a faulted power system Element as designed, or within its designed operating time, or o In the absence of a fault, failure to operate as intended within its designed operating time. (Item b is a very rare type of event.) ●62 - Security (unintended operation): One or more Automatic Outages caused by improper operation (e.g. overtrip) of a Protection System resulting in isolating one or more TADS Elements it is not intended to isolate, either during a fault or in the absence of a fault. ●90 - Automatic Outage(s) with Abnormal Clearing not covered by Event Types 60 through 62 above. TADS New Event type Codes Abnormal Clearing

9 TADS Forms o 1.1 Non – Reporting TO Statement o 1.2 Reporting TO Statement o 2.1 Tie Lines and Jointly Owned AC & DC o 2.2 Jointly Owned AC/DC BTB Converters o Transmission Inventory Data o Transformer Inventory Data o Common Corridor Inventory Data o 3.3 AC/DC BTB Converter Inverter Data o 3.4 Summary Automatic Outage Data o 4.1 AC Circuit Detailed Outage Data o 4.2 DC Circuit Detailed Outage Data o 4.3 Transformer Detailed Outage Data o 4.4 AC/DC BTB Converter Detailed Outage Data o 5.0 Event Code Data o 6.1 AC Circuit Non Automatic Outage Data o 6.2 DC Circuit Non Automatic Outage Data o 6.3 Transformer Non Automatic Outage Data o 6.4 AC/DC BTB Converter Non Automatic Outage Data NERC TADS Forms WECC TRD Sheets Future Reporting for CY 2013 Data

10 Transmission Owner Unique Element Identifier Circuit Mileage Number of Terminals Substation, Terminal, or Converter Names Element Voltage Class Change Reconfiguration Date (in-service date) Retirement Date Precursor Elements (parent ID) Terminal Type o Single Bus o Sectionalized Bus o Main and Transfer Bus o Ring Bus o Breaker-and-a-half o Double Breaker-Double Bus o Directly Connected to another Element o Other Overhead/Underground Circuit AC Multi-Owner Common Structure Flag NERC Requesting New Fields Currently in WECC TRD Sheets Inventory Data

11 Assume the NERC BOT approves the data request in December 2012 the following schedule will be implemented. o 1Q 2013 data due June 30, 2013 (90 days) o 2Q 2013 data due August 31, 2013 (60 days) o 3Q 2013 data due November 15, 2013 (45 days) o 4Q 2013 data due February 15, 2014 (45 days) o 45 days after the quarter in 2014 Quarterly Reporting

12 Sustained Automatic Outages and Operational Outages. Sustained outages would be collected in the reporting period 6 months after FERC’s approval of the BES definition. Operational outages will be collected if the 5 year assessment of Non-Automatic outage data collection in 2015 is beneficial to reliability. Reporting Less than 200kV BES

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