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Yukon Energy Corporation Independent Power Producers

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Yukon Energy Corporation Independent Power Producers Yukon Energy Corporation Independent Power Producers Interconnection Technical Guide Revision: 04b Release Date: 2019 01 24 Disclaimer This report was prepared under the supervision of Teshmont Consultants LP (“Teshmont”), whose responsibility is limited to the scope of work as shown herein. Teshmont disclaims responsibility for the work of others incorporated or referenced herein. Revision History Revision Number Date Released Prepared by Reviewed by Comments Robyn Tarrant, PEng David King, PEng 00 May 14, 2018 First Draft Dwayne Aming, PEng Robert Baker, PEng Robyn Tarrant, PEng 01 May 30, 2018 David King, PEng Second Draft Dwayne Aming, PEng Robyn Tarrant, PEng Third Draft. Incorporated 02 June 5, 2018 David King, PEng Dwayne Aming, PEng YEC Comments. Robyn Tarrant, PEng Fourth Draft. Incorporated 03 June 18, 2018 David King, PEng Dwayne Aming, PEng YEC Comments. Robyn Tarrant, PEng Fifth Draft. Incorporated 04 September 17, 2018 David King, PEng Dwayne Aming, PEng YEC Comments. i Independent Power Producers Interconnection Technical Guide | 2019 01 Contents Executive Summary ....................................................................................................................................... 6 1. Introduction and Scope ......................................................................................................................... 7 1.1. Purpose ........................................................................................................................................... 7 1.2. Limitations ...................................................................................................................................... 7 2. Terms, Definitions, and Abbreviations .................................................................................................. 8 2.1. Definitions....................................................................................................................................... 8 2.2. Abbreviations ................................................................................................................................ 11 3. Party Responsibilities .......................................................................................................................... 12 3.1. IPP Responsibilities ....................................................................................................................... 12 3.2. YEC Responsibilities ...................................................................................................................... 12 3.3. AEY Responsibilities ...................................................................................................................... 12 4. General Requirements ........................................................................................................................ 13 4.1. Standards ...................................................................................................................................... 13 4.2. Operating Requirements .............................................................................................................. 13 5. Site Specific Conditions and Capacity Limitations ............................................................................... 14 6. YIS Transmission and Distribution System Characteristics ................................................................. 15 6.1. YEC Transmission System ............................................................................................................. 15 6.1.1. General System Configuration ............................................................................................................... 15 6.1.2. System Unbalance .................................................................................................................................. 16 6.1.3. Frequency ............................................................................................................................................... 16 6.1.4. Steady State Voltage Levels ................................................................................................................... 16 6.1.5. System Fault Levels and System Impedances ........................................................................................ 16 6.1.6. Fault Clearing and Automatic Reclosing ................................................................................................. 16 6.1.7. System Grounding .................................................................................................................................. 16 6.2. YIS Distribution System Characteristics ........................................................................................ 17 6.2.1. General ................................................................................................................................................... 17 6.2.2. Voltage Levels ........................................................................................................................................ 17 6.2.3. Power Quality (Harmonics and Voltage Flicker) ..................................................................................... 17 6.2.4. Voltage Regulation ................................................................................................................................. 17 6.2.5. Voltage Unbalance ................................................................................................................................. 17 6.2.6. Fault Levels ............................................................................................................................................. 18 6.2.7. System Grounding .................................................................................................................................. 18 6.2.8. Phasing ................................................................................................................................................... 18 6.2.9. Fault and Line Clearing and Automatic Reclosing .................................................................................. 18 7. Power Quality Requirements for the System Interconnection ........................................................... 19 7.1. Harmonics ..................................................................................................................................... 19 7.2. Flicker ............................................................................................................................................ 19 7.3. Speed Regulation and Frequency Control .................................................................................... 19 7.4. Voltage Regulation and Power Factor .......................................................................................... 20 ii Independent Power Producers Interconnection Technical Guide | 2019 01 7.5. Voltage Unbalance ........................................................................................................................ 21 7.6. Voltage and Frequency Transients ............................................................................................... 21 7.7. Resonance and Self-Excitation of Induction Generators .............................................................. 21 7.8. DC Current Injection ..................................................................................................................... 22 7.9. Fault Levels ................................................................................................................................... 22 8. Physical Interconnection ..................................................................................................................... 23 8.1. Safety ............................................................................................................................................ 23 8.2. Point of Interconnection (POI)...................................................................................................... 23 8.3. Point of Disconnection ................................................................................................................. 23 8.3.1. High Side and Low Side Disconnect Switches......................................................................................... 24 8.3.2. Disconnect Switch Specification ............................................................................................................. 24 8.4. Interconnection Transformer ....................................................................................................... 24 8.5. Interconnection Grounding .......................................................................................................... 24 8.6. Phasing and Phasing Sequence..................................................................................................... 25 8.7. Interrupting Device Ratings .......................................................................................................... 25 9. Interconnection Protection ................................................................................................................. 26 9.1. General ......................................................................................................................................... 26 9.2. Device Ratings............................................................................................................................... 26 9.3. Minimum
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