Substation Design Manual - Ergon Energy

1 Substation Design Manual This material is made available on the basis that it may be necessary for a Registered Professional Engineer of Queensland (RPEQ) to undertake or oversee the engineering services to meet statutory obligations. Substation Design Manual i Reference NI000401R121 Ver 2 Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802 Revision History Version Description of Change Approval Date Revised By 1 Initial version 25/03/2013 Draft 2a Content revised and additional content added, including Project Delivery, Documentation. Control and Switchgear Building, Primary Plant (Layout, Transformers, Switchboards), Secondary Systems (CB Fail, U/F, Metering, LV cabling), Period Contract Plant and Relays, Software Parameter Tables, Design Modules, and Drawing Lists.

2 Some Civil content removed and now included in Civil Standard. 11/02/2014 C. Woods Substation Design Manual ii Reference NI000401R121 Ver 2 Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802 Table of Contents 1. PURPOSE AND SCOPE .. 1 2. RESPONSIBILITIES .. 1 3. DEFINITIONS, ABBREVIATIONS AND ACRONYMS .. 1 4. REFERENCES .. 3 Ergon Energy Controlled Documents .. 3 Asset Management Substation Standards .. 3 Other References .. 4 Legislation and Standards References .. 5 5. SAFETY LEGISLATION AND POLICIES .. 6 General .. 6 Ergon Energy Workplace Health and Safety Policy .. 6 Queensland Electrical Safety Legislation.

3 6 Workplace Health and Safety .. 7 Work Health and Safety Act 7 Reasonably Practicable 8 Safety in Design (Risk Management) 9 6. LEGISLATION AND STANDARDS .. 10 Asset Management Standards .. 10 Technical Specifications .. 10 Zone Substation Standards, Templates and Design Modules .. 11 Reference Documents .. 12 Australian and International Standards .. 12 7. QUALITY MANAGEMENT .. 13 8. PROJECT DELIVERY .. 14 Project Phases .. 14 Project Types, Site Acquisition, Greenfield, Brownfield .. 17 Project Staging and Contingency Planning .. 17 Drawings .. 18 Bill of Materials .. 18 Material Ordering.

4 19 Work Specifications .. 19 9. DRAWINGS, DOCUMENTATION AND RECORDS .. 20 Electronic Document Management System (EDMS) .. 20 Substation Design Manual iii Reference NI000401R121 Ver 2 Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802 Drawings (Physical, Schematics, Schedules) .. 20 Drawing Types (Overview) 20 Drawing Approvals 20 Project Owner Design Verification 21 Equipment Identification .. 21 CAD .. 21 CAD Standards - General 21 Hybrid Drawings 22 CAD Standards Workspace 22 Seed Files 22 Cells 22 Creating a New Drawing 23 Revising an Existing Drawing 23 Clouding 23 Concurrent Projects at a Substation 23 Releasing drawings for construction 24 CAD Drafting Hints and Tips 24 Single Line Diagrams.

5 24 Plant Manuals .. 27 Equipment Records .. 27 Substation Operating Manual .. 28 As-Built Drawings .. 28 10. ENVIRONMENT .. 29 General .. 29 Ergon Energy Environmental Policy .. 29 EMF .. 29 Noise .. 30 Oil Pollution .. 30 Visual Amenity .. 31 Plant Pollution Ratings .. 32 11. CIVIL WORKS .. 33 General .. 33 Civil Design .. 33 Geotechnical Report 34 Survey 34 Electrical Conduits, Cable Ducts and Earthing 34 Retrofitting or Replacing Existing Infrastructure 35 Replacing High Voltage Substation Plant 35 Site Selection.

6 35 12. CONTROL AND SWITCHGEAR BUILDING .. 37 General .. 37 Control Building Electrical Services .. 37 Locks, Keys, Operating Equipment .. 38 Substation Design Manual iv Reference NI000401R121 Ver 2 Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802 Battery Ventilation .. 39 13. PRIMARY PLANT .. 40 Layout .. 40 Plant Ratings .. 40 Power Transformers .. 40 HV Circuit Breakers (Outdoor) .. 42 Current Transformers, Including CT Marshalling Box .. 42 Voltage Transformers, Including VT Marshalling Box .. 44 Disconnectors and Earthing Switches.

7 46 HV Switchboards .. 47 HV Cables .. 48 Busbars and Conductors .. 50 Clearances .. 50 Lightning and Surge Protection .. 51 14. EARTHING .. 53 Main Earth Grid .. 53 Secondary Earthing and Bonding .. 54 15. SECONDARY 56 Protection and Control Panels .. 56 Protection Relays .. 57 Relay Selection 58 Protection Application Guides 58 Trip Circuits .. 58 Close Circuits .. 60 Auto Reclosing .. 60 Circuit Breaker Fail Protection .. 62 Frame Leakage Protection .. 62 Sensitive Earth Fault Protection .. 63 Underfrequency Protection.

8 63 CVT Monitoring .. 63 SCADA Systems .. 64 SCADA Master Station 64 Remote Terminal Unit (RTU) 64 Local Control Facility (LCF) 65 Communications .. 65 Site Classification 65 Standard Drawings 66 Equipment Coding 66 Communications Cabling 66 Engineering Access 66 SCADA Communications 67 Substation Design Manual v Reference NI000401R121 Ver 2 Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802 Protection Communications 67 Telephony 67 VHF Mobile Radio 67 Communications DC Supplies 67 Communications Materials 68 Operational Support Systems 68 Metering.

9 68 General 68 Panel and SCADA Metering 69 Statistical Metering 69 Revenue Metering 70 Metering Voltage Transformers 70 Metering Current Transformers 71 LV Cabling, Secondary Wiring and Terminals .. 71 16. MISCELLANEOUS .. 73 Auxiliary AC Supplies .. 73 General 73 415V AC System Earthing 73 AC Changeover Boards, Standard and Sizing 73 AC Supply Metering 73 AC Distribution 74 Switchyard Outlets 75 Generator Connections 75 DC Supply Systems .. 75 Lighting .. 76 General Requirements 76 Design Requirements 77 Switchyard Lights and Mounting Structures 77 Panel Indication Sheets and Relay Reading Sheets.

10 77 Nameplates, Signage, Labelling .. 77 General 77 Rating Plates, Nameplates and Operational Signs 78 Labels 78 Safety Signs 78 ANNEX A CAD HINTS AND TIPS .. 79 Grid and Unit Spacing .. 79 CAD Standard Tools .. 79 Landscape Borders .. 79 Working with Drawings Created Using Different Standards .. 79 Terminals and Connection Points .. 79 Text Justification .. 79 Revision Notes .. 80 Using Microstation Tools .. 80 ANNEX B PERIOD CONTRACT PLANT .. 84 ANNEX C PERIOD CONTRACT PROTECTION RELAYS .. 87 Substation Design Manual vi Reference NI000401R121 Ver 2 Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802 ANNEX D RELAY SELECTION.