Substation Design Manual PDF

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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 Revision History Approval Version Descri...

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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 Revision History Version 1 Draft 2a

Description of Change

Approval Date

Initial version

25/03/2013

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. Some Civil content removed and now included in Civil Standard.

11/02/2014 C. Woods

i Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802

Revised By

Reference NI000401R121 Ver 2

Substation Design Manual

Table of Contents 1. 

PURPOSE AND SCOPE ............................................................................................. 1 

2. 

RESPONSIBILITIES ................................................................................................... 1 

3. 

DEFINITIONS, ABBREVIATIONS AND ACRONYMS ................................................. 1 

4. 

REFERENCES ............................................................................................................ 3 

5. 

6. 

4.1 

Ergon Energy Controlled Documents........................................................................... 3 

4.2 

Asset Management Substation Standards ................................................................... 3 

4.3 

Other References ......................................................................................................... 4 

4.4 

Legislation and Standards References ........................................................................ 5 

SAFETY LEGISLATION AND POLICIES .................................................................... 6  5.1

General ........................................................................................................................ 6

5.2

Ergon Energy Workplace Health and Safety Policy ..................................................... 6

5.3

Queensland Electrical Safety Legislation ..................................................................... 6

5.4

Workplace Health and Safety....................................................................................... 7 5.4.1  Work Health and Safety Act 7  5.4.2  Reasonably Practicable 8  5.4.3  Safety in Design (Risk Management) 9 

LEGISLATION AND STANDARDS ........................................................................... 10  6.1

Asset Management Standards ................................................................................... 10

6.2

Technical Specifications............................................................................................. 10

6.3

Zone Substation Standards, Templates and Design Modules ................................... 11

6.4

Reference Documents ............................................................................................... 12

6.5

Australian and International Standards ...................................................................... 12

7. 

QUALITY MANAGEMENT ........................................................................................ 13 

8. 

PROJECT DELIVERY ............................................................................................... 14 

9. 

8.1

Project Phases ........................................................................................................... 14

8.2

Project Types, Site Acquisition, Greenfield, Brownfield ............................................. 17

8.3

Project Staging and Contingency Planning ................................................................ 17

8.4

Drawings .................................................................................................................... 18

8.5

Bill of Materials ........................................................................................................... 18

8.6

Material Ordering ....................................................................................................... 19

8.7

Work Specifications.................................................................................................... 19

DRAWINGS, DOCUMENTATION AND RECORDS .................................................. 20  9.1

Electronic Document Management System (EDMS) ................................................. 20 ii Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802

Reference NI000401R121 Ver 2

Substation Design Manual 9.2

9.3 9.4

Drawings (Physical, Schematics, Schedules) ............................................................ 20 9.2.1 Drawing Types (Overview) 20 9.2.2 Drawing Approvals 20 9.2.3 Project Owner Design Verification 21 Equipment Identification ............................................................................................. 21

9.5

CAD............................................................................................................................ 21 9.4.1 CAD Standards - General 21 9.4.2 Hybrid Drawings 22 9.4.3 CAD Standards Workspace 22 9.4.4 Seed Files 22 9.4.5 Cells 22 9.4.6 Creating a New Drawing 23 9.4.7 Revising an Existing Drawing 23 9.4.8 Clouding 23 9.4.9 Concurrent Projects at a Substation 23 9.4.10 Releasing drawings for construction 24 9.4.11 CAD Drafting Hints and Tips 24 Single Line Diagrams ................................................................................................. 24

9.6

Plant Manuals ............................................................................................................ 27

9.7

Equipment Records.................................................................................................... 27

9.8

Substation Operating Manual..................................................................................... 28

9.9

As-Built Drawings ....................................................................................................... 28

10.  ENVIRONMENT ........................................................................................................ 29  10.1

General ...................................................................................................................... 29

10.2

Ergon Energy Environmental Policy........................................................................... 29

10.3

EMF............................................................................................................................ 29

10.4

Noise .......................................................................................................................... 30

10.5

Oil Pollution ................................................................................................................ 30

10.6

Visual Amenity ........................................................................................................... 31

10.7

Plant Pollution Ratings ............................................................................................... 32

11.  CIVIL WORKS ........................................................................................................... 33  11.1

General ...................................................................................................................... 33

11.2

Civil Design ................................................................................................................ 33 11.2.1 Geotechnical Report 34 11.2.2 Survey 34 11.2.3 Electrical Conduits, Cable Ducts and Earthing 34 11.2.4 Retrofitting or Replacing Existing Infrastructure 35 11.2.5 Replacing High Voltage Substation Plant 35 Site Selection ............................................................................................................. 35

11.3

12.  CONTROL AND SWITCHGEAR BUILDING ............................................................. 37  12.1

General ...................................................................................................................... 37

12.2

Control Building Electrical Services ........................................................................... 37

12.3

Locks, Keys, Operating Equipment ............................................................................ 38 iii Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802

Reference NI000401R121 Ver 2

Substation Design Manual 12.4

Battery Ventilation ...................................................................................................... 39

13.  PRIMARY PLANT ..................................................................................................... 40  13.1

Layout ........................................................................................................................ 40

13.2

Plant Ratings .............................................................................................................. 40

13.3

Power Transformers................................................................................................... 40

13.4

HV Circuit Breakers (Outdoor) ................................................................................... 42

13.5

Current Transformers, Including CT Marshalling Box ................................................ 42

13.6

Voltage Transformers, Including VT Marshalling Box ................................................ 44

13.7

Disconnectors and Earthing Switches........................................................................ 46

13.8

HV Switchboards........................................................................................................ 47

13.9

HV Cables .................................................................................................................. 48

13.10 Busbars and Conductors............................................................................................ 50 13.11 Clearances ................................................................................................................. 50 13.12 Lightning and Surge Protection .................................................................................. 51

14.  EARTHING ................................................................................................................ 53  14.1

Main Earth Grid .......................................................................................................... 53

14.2

Secondary Earthing and Bonding .............................................................................. 54

15.  SECONDARY SYSTEMS.......................................................................................... 56  15.1

Protection and Control Panels ................................................................................... 56

15.2

15.3

Protection Relays ....................................................................................................... 57 15.2.1 Relay Selection 58 15.2.2 Protection Application Guides 58 Trip Circuits ................................................................................................................ 58

15.4

Close Circuits ............................................................................................................. 60

15.5

Auto Reclosing ........................................................................................................... 60

15.6

Circuit Breaker Fail Protection ................................................................................... 62

15.7

Frame Leakage Protection ......................................................................................... 62

15.8

Sensitive Earth Fault Protection ................................................................................. 63

15.9

Underfrequency Protection ........................................................................................ 63

15.10 CVT Monitoring .......................................................................................................... 63 15.11 SCADA Systems ........................................................................................................ 64 15.11.1 SCADA Master Station 64 15.11.2 Remote Terminal Unit (RTU) 64 15.11.3 Local Control Facility (LCF) 65 15.12 Communications ........................................................................................................ 65 15.12.1 Site Classification 65 15.12.2 Standard Drawings 66 15.12.3 Equipment Coding 66 15.12.4 Communications Cabling 66 15.12.5 Engineering Access 66 15.12.6 SCADA Communications 67 iv Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802

Reference NI000401R121 Ver 2

Substation Design Manual 15.12.7 Protection Communications 67 15.12.8 Telephony 67 15.12.9 VHF Mobile Radio 67 15.12.10 Communications DC Supplies 67 15.12.11 Communications Materials 68 15.12.12 Operational Support Systems 68 15.13 Metering ..................................................................................................................... 68 15.13.1 General 68 15.13.2 Panel and SCADA Metering 69 15.13.3 Statistical Metering 69 15.13.4 Revenue Metering 70 15.13.5 Metering Voltage Transformers 70 15.13.6 Metering Current Transformers 71 15.14 LV Cabling, Secondary Wiring and Terminals ........................................................... 71

16.  MISCELLANEOUS .................................................................................................... 73  16.1

16.2 16.3

16.4 16.5

Auxiliary AC Supplies ................................................................................................. 73 16.1.1 General 73 16.1.2 415V AC System Earthing 73 16.1.3 AC Changeover Boards, Standard and Sizing 73 16.1.4 AC Supply Metering 73 16.1.5 AC Distribution 74 16.1.6 Switchyard Outlets 75 16.1.7 Generator Connections 75 DC Supply Systems ................................................................................................... 75 Lighting....................................................................................................................... 76 16.3.1 General Requirements 76 16.3.2 Design Requirements 77 16.3.3 Switchyard Lights and Mounting Structures 77 Panel Indication Sheets and Relay Reading Sheets.................................................. 77 Nameplates, Signage, Labelling ................................................................................ 77 16.5.1 General 77 16.5.2 Rating Plates, Nameplates and Operational Signs 78 16.5.3 Labels 78 16.5.4 Safety Signs 78

ANNEX A – CAD HINTS AND TIPS .................................................................................. 79  A.1 Grid and Unit Spacing .................................................................................................... 79 A.2 CAD Standard Tools ...................................................................................................... 79 A.3 Landscape Borders ........................................................................................................ 79 A.4 Working with Drawings Created Using Different Standards ........................................... 79 A.5 Terminals and Connection Points .................................................................................. 79 A.6 Text Justification............................................................................................................. 79 A.7 Revision Notes ............................................................................................................... 80 A.8 Using Microstation Tools ................................................................................................ 80

ANNEX B – PERIOD CONTRACT PLANT ........................................................................ 84  ANNEX C – PERIOD CONTRACT PROTECTION RELAYS ............................................. 87  v Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802

Reference NI000401R121 Ver 2

Substation Design Manual ANNEX D – RELAY SELECTION ...................................................................................... 89  ANNEX E – PROTECTION APPLICATION GUIDES ........................................................ 91  ANNEX F – CDEGS SOFTWARE PARAMETER TABLES ............................................... 94  ANNEX G – NOISE CADNA SOFTWARE PARAMETER TABLE ..................................... 97  ANNEX H – CYMCAP SOFTWARE PARAMETER TABLE ............................................... 98  ANNEX I – STANDARD DESIGN MODULES ................................................................. 102  ANNEX J – SUBSTATION DRAWING LIST .................................................................... 116 

vi Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802

Reference NI000401R121 Ver 2

Substation Design Manual 1.

PURPOSE AND SCOPE

This document is a reference for the Designers of Ergon Energy substations and it covers all aspects of substation design for both Greenfield and Brownfield substation projects to meet the performance expected by Ergon Energy. The manual is applicable for all substation projects regardless of internal/external design delivery mode. The substation design manual is not intended to replace Asset Management Standards, but rather to act as a reference document that cross-references existing standards and process documentation and plugs any gaps where Asset Management documentation does not exist. The Ergon Energy design philosophy is to provide substations: (a)

Safe for the public.