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Technical Requirements for Interconnection to the BPA Transmission Grid STD-N-000001 REVISION 07 CN 01

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Technical Requirements for Interconnection to the BPA Transmission Grid STD-N-000001 REVISION 07 CN 01 Technical Requirements for Interconnection to the BPA Transmission Grid STD-N-000001 REVISION 07 CN 01 Standard Content Owner: TPP/TPC/TPMG DISTRIBUTION STATEMENT: Approved for public release This document and its contents are to be controlled when obtained external to the Bonneville Power Administration (BPA) or its assigns. Do not reproduce or distribute. This standard is a continually evolving document that may change without notice. It describes material, standards of quality, and requirements that are applicable to BPA planning, design, maintenance, and construction projects, and it was developed to serve and support BPA’s electrical transmission system and infrastructure. Therefore, the requirements presented within may not be compatible with any other electrical utility’s system or infrastructure. TABLE OF CONTENTS 1. INTENT ...................................................................................................................... 3 1.1 Applicable Codes, Standards, Criteria and Regulations ............................. 4 1.2 Effect of the National Environmental Policy Act .......................................... 4 1.3 Safety, Protection, and Reliability ................................................................. 4 1.4 Responsibilities of the Parties ...................................................................... 5 1.5 Special Disturbance Studies ......................................................................... 5 1.6 Cost Estimates................................................................................................ 5 2. REVISION HISTORY ................................................................................................. 5 3. DEFINITIONS ............................................................................................................ 6 3.1 Definitions ....................................................................................................... 6 3.2 Acronyms and Abbreviations ...................................................................... 12 4. BACKGROUND ....................................................................................................... 12 5. REQUIRED INFORMATION FOR INTERCONNECTION REQUESTS ................... 13 5.1 Introduction................................................................................................... 13 5.2 Connection Location .................................................................................... 13 5.3 Electrical Data ............................................................................................... 13 6. SYSTEM PLANNING & PERFORMANCE REQUIREMENTS ................................ 16 6.1 General Configurations ................................................................................ 16 6.2 Special Configurations ................................................................................ 16 6.3 Requirements for Generator Interconnections .......................................... 17 6.4 System Stability and Reliability ................................................................... 26 7. SUBSTATION FACILITY & HIGH VOLTAGE EQUIPMENT REQUIREMENTS .................................................................................................... 31 7.1 General Equipment Considerations ............................................................ 31 7.2 BPA Substation Requirements .................................................................... 32 7.3 Customer Built Substations and Facilities ................................................. 32 7.4 Switchgear .................................................................................................... 32 7.5 Transformer Considerations ....................................................................... 34 7.6 Substation Grounding .................................................................................. 36 7.7 Station Service.............................................................................................. 37 7.8 STATCOM-Type Controllable Reactive Power Devices ............................ 37 7.9 Higher Speed Switching of Shunt Capacitors............................................ 38 STD-N-000001-00-07 Revision Date: 2/26/21 PAGE 1 OF 90 Technical Requirements for Interconnection to the BPA Transmission Grid STD-N-000001 8. TRANSMISSION LINE REQUIREMENTS .............................................................. 38 8.1 Right-of-Way (ROW) Width .......................................................................... 38 8.2 Lightning Protection and Grounding .......................................................... 39 8.3 Surge Protection ........................................................................................... 39 8.4 Underbuild .................................................................................................... 39 9. CONTROL & PROTECTION REQUIREMENTS ..................................................... 39 9.1 Control and Protection Requirements ........................................................ 39 10. TELECOMMUNICATION REQUIREMENTS ........................................................... 61 10.1 Introduction................................................................................................... 61 10.2 Radio Systems .............................................................................................. 61 10.3 Fiber Optic Systems ..................................................................................... 62 10.4 Wireline Facilities ......................................................................................... 62 10.5 Voice Communications ................................................................................ 62 10.6 Data Communications .................................................................................. 63 10.7 Telecommunications for Control and Protection ...................................... 64 10.8 Telecommunications during Emergency Conditions ................................ 64 11. COMMISSIONING REQUIREMENTS ..................................................................... 65 11.1 Pre-energization Inspection and Testing ................................................... 65 11.2 Technical Operations & Performance Testing Requirements .................. 67 12. COMMERCIAL OPERATIONS & METERING REQUIREMENTS .......................... 67 12.1 Data Requirements for System Operation and Scheduling ...................... 67 12.2 Telemetering Data Requirements for BPA Control Centers ..................... 68 12.3 Voltage Schedules ........................................................................................ 79 12.4 Reactive Power ............................................................................................. 79 12.5 Power System Disturbances and Emergency Conditions ........................ 79 12.6 Data Requirements for Transmission Grid Modeling ................................ 80 13. MAINTENANCE REQUIREMENTS ......................................................................... 80 13.1 Outage Planning ........................................................................................... 80 13.2 Switchable Devices ...................................................................................... 81 13.3 Frequency and Duration of Outages ........................................................... 81 13.4 Inspection, Test, Calibration and Maintenance .......................................... 81 13.5 Calibration and Maintenance of Revenue and Interchange Metering ...... 82 13.6 Synchronizing ............................................................................................... 83 14. REFERENCES ........................................................................................................ 83 APPENDIX .................................................................................................................... 88 List of Figures Figure 1.--- Required Reactive Power Capability at POM (for nominal voltages 0.95 pu- 1.05 pu) ......................................................................................................................... 18 Figure 2.--- Example Of Important Reference Quantities Required For Acceptable POM Voltage Control ............................................................................................................. 19 Figure 3.--- Type 3/4 Wind Turbines Providing Primary Generator Reactive Power ..... 21 Figure 4.--- Type 1/2 Wind Turbine Reactive Power Control with FACTS-device Controllable Plant-level Reactive Compensation (SVC, STATCOM, DVAR, etc.) ......... 22 STD-N-000001-00-07 Revision Date: 2/26/21 Page 2 of 90 Technical Requirements for Interconnection to the BPA Transmission Grid STD-N-000001 Figure 5.--- Voltage Impact on Line Connected Load for VER Generation.................... 23 Figure 6.--- LVRT Duration curve, Modified from NERC PRC-026 ................................ 24 Figure 7.--- Frequency Response from NERC IBR Guidelines ..................................... 25 Figure 8.--- Integration of Generation into a Transmission Level Substation................. 49 Figure 9.--- Integration of Generation into a Low Voltage Substation Protected by a High Side Circuit Breaker and Connected to a Transmission Line Through a YG-∆ (as shown) or YG-∆-YG Transformer ............................................................................................... 50 Figure 10.--- Integration of Generation to an Existing Low Voltage Substation Connected
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