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The Saudi Arabian Grid Code

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The Saudi Arabian Grid Code The Saudi Arabian Grid Code Issue: 01 Revision: 00 May 2007 Prepared by: Saudi Electricity Company (SEC) No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, mechanical, photocopying, recording or otherwise, without written permission of the Electricity & Cogeneration Regulatory Authority. CHRONOLOGY OF SAUDI ARABIAN GRID CODE REVISIONS Sr. Revision No. Date Detail of the Revision No. Issue, 01; Revision, 00 (May 2007) i The Saudi Arabian Grid Code Table of Contents TABLE OF CONTENTS CHRONOLOGY OF SAUDI ARABIAN GRID CODE REVISIONS...................i FOREWORD ................................................................................................viii PREFACE.......................................................................................................ix LIST OF ABBREVIATIONS ...........................................................................xi CHAPTER 1 GENERAL CONDITIONS.......................................................1 1.1 Introduction ............................................................................................................ 1 1.2 Objectives ............................................................................................................... 1 1.3 Scope....................................................................................................................... 1 1.4 Grid Code Implementation and Enforcement...................................................... 2 1.5 Settlement of Disputes .......................................................................................... 2 1.6 Unforeseen Circumstances................................................................................... 2 1.7 Suspension of Grid Code Provisions................................................................... 3 1.8 Illegality and Partial Invalidity............................................................................... 3 1.9 Force Majeure......................................................................................................... 3 1.10 The Grid Code Supervisory Committee (GCSC) ................................................. 3 1.11 Grid Code Amendment or Derogation Process .................................................. 5 1.12 Communication between the TSP and Users...................................................... 7 1.13 Data, Notices, and Confidentiality........................................................................ 8 1.14 Ownership of Plant and/or Apparatus.................................................................. 9 1.15 System Control....................................................................................................... 9 1.16 Code Interpretation ................................................................................................ 9 1.16.1 Precedence 9 1.16.2 Glossary and Definitions 9 1.16.3 Preface, Table of Contents, and Titles 9 1.16.4 Mandatory Provisions 9 1.16.5 Plural and Gender 10 1.16.6 Person or Entity 10 1.16.7 Amendment of Standards 10 1.16.8 Figures 10 Issue, 01; Revision, 00 (May 2007) ii The Saudi Arabian Grid Code Table of Contents CHAPTER 2 CONNECTION CODE ..........................................................11 2.1 Introduction .......................................................................................................... 11 2.2 Objectives ............................................................................................................. 11 2.3 Grid Connection Procedure ................................................................................ 11 2.3.1 General Provisions 11 2.3.2 Grid Impact Studies 13 2.3.3 Application for a New, or Modification of an Existing, Connection 13 2.3.4 Processing of the Application 14 2.3.5 Connection Agreement 16 2.3.6 Submittals Prior to the Commissioning Date 16 2.3.7 Commissioning of Equipment and Physical Connection to the Grid 17 2.4 Transmission System Performance................................................................... 17 2.4.1 General Provisions 17 2.4.2 Frequency Variations 18 2.4.3 Voltage Variations 18 2.4.4 Harmonic Distortion 19 2.4.5 Voltage Unbalance 19 2.4.6 Voltage Fluctuation and Flicker Severity 19 2.4.7 Transient Voltage Variations 20 2.4.8 Grounding 20 2.5 Plant and Apparatus at Connection Points ....................................................... 20 2.5.1 General Provisions 20 2.5.2 Protection Equipment/Schemes 21 2.5.3 Operation and Maintenance Safety Conditions 23 2.5.4 Metering 24 2.5.5 Requirements for Generators 24 2.5.6 Requirements for Distribution Entities and Directly-connected Customers 27 2.6 System Services................................................................................................... 28 2.7 Site Related Conditions....................................................................................... 29 2.7.1 Responsibility for Operation and Maintenance 29 2.7.2 Responsibilities for Safety 29 2.7.3 Site and Equipment Identification and Labeling 29 2.7.4 Connection Point Drawings 31 2.7.5 Site Responsibility Schedules 33 2.7.6 Access to Sites 34 2.7.7 Maintenance Procedures 34 2.7.8 Site Operational Procedures 34 APPENDIX A2.1: Preparation of Site Responsibility Schedules ...................................... 36 A2.1.1 Principles 36 A2.1.2 Alterations to Existing Site Responsibility Schedules 37 A2.1.3 Responsible Managers 38 CHAPTER 3 PLANNING CODE................................................................40 3.1 Introduction .......................................................................................................... 40 3.2 Objectives ............................................................................................................. 40 3.3 Grid Planning........................................................................................................ 40 Issue, 01; Revision, 00 (May 2007) iii The Saudi Arabian Grid Code Table of Contents 3.3.1 Grid Planning Responsibility 40 3.3.2 Grid Planning Process 41 3.3.3 Submission of Grid Planning Data 41 3.3.4 Consolidation and Maintenance of Grid Planning Data 44 3.3.5 Planning Criteria and Standards 44 3.3.6 Grid Planning Studies 44 APPENDIX A3.1: Standard Planning Data........................................................................... 46 A3.1.1 Historical Energy and Demand 46 A3.1.2 Energy and Demand Forecast 46 A3.1.3 Generating Unit/Station Data 47 A3.1.4 User System Data 48 Appendix A3.2: Detailed Planning Data .............................................................................. 52 A3.2.1 Generating Unit/Station Data 52 A3.2.2 User System Data 54 CHAPTER 4 OPERATING CODE .............................................................57 4.1 Chapter Overview................................................................................................. 57 4.2 Operational Demand Forecasts.......................................................................... 58 4.2.1 Introduction 58 4.2.2 Definitions 59 4.2.3 Objectives 59 4.2.4 Data Required by the TSP for Operational Demand Forecasting 59 4.2.5 Transmission System Forecasts 62 4.3 Outage Planning................................................................................................... 63 4.3.1 Introduction 63 4.3.2 Definitions 64 4.3.3 Objective 64 4.3.4 Planning of Generating Unit Outages 64 4.3.5 Planning of Transmission System Outages 73 4.3.6 Data Requirements 76 4.4 System Services................................................................................................... 76 4.4.1 Introduction 76 4.4.2 Objectives 77 4.4.3 Frequency Control 77 4.4.4 Voltage Control 78 4.4.5 System Control 81 4.4.6 Operating Margin 84 4.4.7 Black Start 87 4.5 Operational Liaison.............................................................................................. 89 4.5.1 Introduction 89 4.5.2 Objectives 89 4.5.3 Procedure for Notification of Operations, Events, and Significant Incidents 89 4.5.4 Significant Incidents 90 4.5.5 Amber Alert 90 4.5.6 Significant Incident Reporting Procedure 90 4.6 Operational Communication between the TSP and Users............................... 91 4.6.1 Introduction 91 4.6.2 Objectives 92 4.6.3 Contact Locations and their Adequacy 92 4.6.4 Communication Systems and Equipment 93 Issue, 01; Revision, 00 (May 2007) iv The Saudi Arabian Grid Code Table of Contents 4.6.5 Conditions of Monitoring and Recording Equipment 93 4.6.6 SCADA Systems 94 4.7 Contingency Planning ......................................................................................... 95 4.7.1 Introduction 95 4.7.2 Objective 95 4.7.3 Terms and Conditions 95 4.7.4 Demand Control 97 4.7.5 System Restoration 98 4.8 Operational Testing ........................................................................................... 100 4.8.1 Introduction 100 4.8.2 Objective 100 4.8.3 Operational Test Request 100 4.8.4 Establishing of the Test Group 101 4.8.5 Operational Test Program 102 4.8.6 Operational Test Report 103 4.9 Testing to Monitor, Investigate, and Verify Performance .............................. 104 4.9.1 Introduction 104 4.9.2 Objective 104 4.9.3 Monitoring 104 4.9.4 Investigation 105 4.9.5 Testing to Verify Performance 105 4.9.6 Commissioning Tests 105 4.9.7 Generating Unit Capability Tests 107 4.10 Cross-boundary Safety Assurance .................................................................. 109 4.10.1 Introduction 109 4.10.2 Objective 110 4.10.3 The Safety Rules 110 4.10.4 Safety at the Connection
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