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Texas Nodal Electrical Buses

Learn about electrical bus definitions, examples, and outage scheduling in the ERCOT Transmission Grid with this comprehensive Texas Nodal manual.

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Texas Nodal Electrical Buses

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  1. Texas NodalElectrical Buses <Manual Date> – <Manual Filename> 1 Texas Nodal

  2. Electrical Bus Definition as Proposed in NPRR 63 Electrical Bus • A physical transmission element defined in the Network Operations Model that connects, using breakers and switches, one or more Loads, lines, transformers, generators, capacitors, reactors, and phase shifters to the ERCOT Transmission Grid where there is negligible impedance between the connected transmission elements. All Electrical Buses are designated by ERCOT and TSPs for modeling the electrical topology of the ERCOT Transmission Grid. <Manual Date> – <Manual Filename> 2 Texas Nodal

  3. Example 1: Simplified Ring Bus Lines Disconnects Breakers No Electrical Buses <Manual Date> – <Manual Filename> 3 Texas Nodal

  4. Example 2: Slightly More Complicated Ring Bus Lines Disconnects Breakers Electrical Buses <Manual Date> – <Manual Filename> 4 Texas Nodal

  5. Example 3: Another Ring Bus Not Electrical Buses Electrical Buses <Manual Date> – <Manual Filename> 5 Texas Nodal

  6. Example 4: Breaker and a half Not Electrical Buses Electrical Buses <Manual Date> – <Manual Filename> 6 Texas Nodal

  7. Example 5: Tap with disconnects Electrical Bus <Manual Date> – <Manual Filename> 7 Texas Nodal

  8. Example 6: Tap without Disconnects No Electrical Buses <Manual Date> – <Manual Filename> 8 Texas Nodal

  9. Example 7: The Real World Electrical Buses <Manual Date> – <Manual Filename> 9 Texas Nodal

  10. Example 8: The Real World Electrical Buses <Manual Date> – <Manual Filename> 10 Texas Nodal

  11. Example 9: The Real World Electrical Buses <Manual Date> – <Manual Filename> 11 Texas Nodal

  12. The End? Questions? <Manual Date> – <Manual Filename> 12 Texas Nodal

  13. Electrical Buses and the Outage Scheduler Electrical Buses and the Outage Scheduler Section 2 - Definitions and Acronyms Transmission Element: A physical transmission facility that is either a Electrical Bus, line, transformer, generator, load, breaker, switch, capacitor, reactor, phase shifter, or other similar device that is part of the ERCOT Transmission Grid and defined in the ERCOT Network Operations Model. Section 3.1.5.1- ERCOT Evaluation of Planned Outage and Maintenance Outage of Transmission Facilities 1. A TSP shall request a Planned Outage or Maintenance Outage for any Transmission Element in the Network Operations Model that requires the Transmission Element to be removed from its normal service. Proposed Transmission Planned Outage or Maintenance Outage information submitted by a TSP in accordance with this Section constitutes a request for ERCOT’s approval of the Outage schedule associated with the Planned Outage or Maintenance Outage. ERCOT is not deemed to have approved the Outage schedule associated with the Planned Outage or Maintenance Outage until ERCOT notifies the TSP of its approval under procedures adopted by ERCOT. ERCOT shall evaluate requests under Section 3.1.5.11, Evaluation of Transmission Facilities Planned Outage or Maintenance <Manual Date> – <Manual Filename> 13 Texas Nodal

  14. Electrical Bus Definition as Proposed in NPRR 63 Electrical Bus • A physical transmission element defined in the Network Operations Model that connects, using breakers and switches, one or more Loads, lines, transformers, generators, capacitors, reactors, and phase shifters to the ERCOT Transmission Grid where there is negligible impedance between the connected transmission elements. All Electrical Buses are designated by ERCOT and TSPs for modeling the electrical topology of the ERCOT Transmission Grid. <Manual Date> – <Manual Filename> 14 Texas Nodal

  15. Outage Scheduler – Line Associations Choose this line Station B Station A Station C <Manual Date> – <Manual Filename> 15 Texas Nodal

  16. Outage Scheduler – Line Associations Station B Station A Choose this line Station C <Manual Date> – <Manual Filename> 16 Texas Nodal

  17. Outage Scheduler – Transformer Associations Station B Station A Choose this Transformer Station C <Manual Date> – <Manual Filename> 17 Texas Nodal

  18. The End? Questions? <Manual Date> – <Manual Filename> 18 Texas Nodal

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