《电力系统自动化》课程教学资源（理论课程资料）变电站自动化_相关标准_57_526e_61850-5

61850-5©1EC:2001 6 57/526/CDV G.1.5.4 Perf0 rmance.… 87 G.1.5.5 Decomposition 87 G.1.5.6 Interaction,… .88 G.1.6 Operative mode control of Logical Nodes 88 G.1.6.1 TaSk… .88 G.1.6.2 Starting criteria. .88 G.1.6.3 ..... 89 G.1.6.4 Performance... 89 G.1.6.5 Decomposition .89 G.1.6.6 Interaction .89 G.1.7 Setting… 89 G.1.7.1Task.… 89 G.1.7.2 Starting criteria.…… …90 G.1.7.3 Result.............. .90 G.1.7.4 Performance.… 90 G.1.7.5 Dec0mp0siti0n… .90 G.1.7.6 Interaction ,90 G.1.8 Test mode 90 G.1.8.1 Task... 90 G.1.8.2 Starting criteria. .90 G.1.8.3 Result.... 90 G.1.8.4 Performance........ 90 G.1.8.5 Decomposition 91 G.1.8.6 Interaction 91 G.1.9 System security management....................... 91 G.1.9.1 Task....... 91 G.1.9.2 Starting criteria. 91 G.1.9.3 Resuult.... 91 G.1.9.4 Performance..... .91 G.1.9.5 Decomposition 91 G.1.9.6 Interacti0n.-… .91 G.2 OPERATIONAL OR CONTROL FUNCTIONS 92 G.2.1 Access Security Management.... 92 G.2.1.1 Task .92 G.2.1.2 Starting criteria.… 92 G.2.1.3 Result. 93 G.2.1.4 Performance 93 G.2.1.5 Decomposition............ 93 G.2.1.6 Interaction .93 G.2.2 Control... 93 G.2.2.1 Task 93 G.2.2.2 Starting criteria... …94 G.2.2.3 Result............. G.2.2.4 Performance................................... ….94 G.2.2.5 Decomposition......... 94 G.2.2.6 Interaction. 。。，。，，。。，, …94 G.2.3 Operational use of spontaneous change of indications... 95 G.2.3.1 Task.. ,95 G.2.3.2 Starting criteria..........................................95 G.2.3.3 Result....... 95 G.2.3.4 Performance .95 G.2.3.5 Decomposition 95 G.2.3.6 Interaction.......... 95 G.2.4 Synchronized switching (Point-on-wave switching)...... 95 G.2.4.1 Tak… 95 G.2.4.2 Starting criteria. 96 G.2.4.3 Result........ ..96 G.2.4.4 Performance..... .96 G.2.4.5 Decomposition 96 G.2.4.6 Interaction 96 G.2.5 Parameter set switching....... 96 G.2.5.1Task..... G.2.6 Alarm Management.......... 97 G.2.6.1 Task ,97 G.2.6.2 Starting criteria. .97 G.2.6.3 Result.... .97 G.2.6.4 Performance...... ...97 G.2.6.5 Decomposition.-… .97

   61850-5  IEC:2001 57/526/CDV 6 G.1.5.4 Performance .........................................................................................................................87 G.1.5.5 Decomposition......................................................................................................................87 G.1.5.6 Interaction ............................................................................................................................88 G.1.6 Operative mode control of Logical Nodes .................................................................... 88 G.1.6.1 Task .....................................................................................................................................88 G.1.6.2 Starting criteria.....................................................................................................................88 G.1.6.3 Result...................................................................................................................................89 G.1.6.4 Performance .........................................................................................................................89 G.1.6.5 Decomposition......................................................................................................................89 G.1.6.6 Interaction ............................................................................................................................89 G.1.7 Setting......................................................................................................................... 89 G.1.7.1 Task .....................................................................................................................................89 G.1.7.2 Starting criteria.....................................................................................................................90 G.1.7.3 Result...................................................................................................................................90 G.1.7.4 Performance .........................................................................................................................90 G.1.7.5 Decomposition......................................................................................................................90 G.1.7.6 Interaction ............................................................................................................................90 G.1.8 Test mode .................................................................................................................... 90 G.1.8.1 Task .....................................................................................................................................90 G.1.8.2 Starting criteria.....................................................................................................................90 G.1.8.3 Result...................................................................................................................................90 G.1.8.4 Performance .........................................................................................................................90 G.1.8.5 Decomposition......................................................................................................................91 G.1.8.6 Interaction ............................................................................................................................91 G.1.9 System security management........................................................................................ 91 G.1.9.1 Task .....................................................................................................................................91 G.1.9.2 Starting criteria.....................................................................................................................91 G.1.9.3 Result...................................................................................................................................91 G.1.9.4 Performance .........................................................................................................................91 G.1.9.5 Decomposition......................................................................................................................91 G.1.9.6 Interaction ............................................................................................................................91 G.2 OPERATIONAL OR CONTROL FUNCTIONS ............................................................................... 92 G.2.1 Access Security Management ....................................................................................... 92 G.2.1.1 Task .....................................................................................................................................92 G.2.1.2 Starting criteria.....................................................................................................................92 G.2.1.3 Result...................................................................................................................................93 G.2.1.4 Performance .........................................................................................................................93 G.2.1.5 Decomposition......................................................................................................................93 G.2.1.6 Interaction ............................................................................................................................93 G.2.2 Control........................................................................................................................ 93 G.2.2.1 Task .....................................................................................................................................93 G.2.2.2 Starting criteria.....................................................................................................................94 G.2.2.3 Result...................................................................................................................................94 G.2.2.4 Performance .........................................................................................................................94 G.2.2.5 Decomposition......................................................................................................................94 G.2.2.6 Interaction ............................................................................................................................94 G.2.3 Operational use of spontaneous change of indications ................................................. 95 G.2.3.1 Task .....................................................................................................................................95 G.2.3.2 Starting criteria.....................................................................................................................95 G.2.3.3 Result...................................................................................................................................95 G.2.3.4 Performance .........................................................................................................................95 G.2.3.5 Decomposition......................................................................................................................95 G.2.3.6 Interaction ............................................................................................................................95 G.2.4 Synchronized switching (Point-on-wave switching) ...................................................... 95 G.2.4.1 Task .....................................................................................................................................95 G.2.4.2 Starting criteria.....................................................................................................................96 G.2.4.3 Result...................................................................................................................................96 G.2.4.4 Performance .........................................................................................................................96 G.2.4.5 Decomposition......................................................................................................................96 G.2.4.6 Interaction ............................................................................................................................96 G.2.5 Parameter set switching .............................................................................................. 96 G.2.5.1 Task .....................................................................................................................................96 G.2.6 Alarm Management...................................................................................................... 97 G.2.6.1 Task .....................................................................................................................................97 G.2.6.2 Starting criteria.....................................................................................................................97 G.2.6.3 Result...................................................................................................................................97 G.2.6.4 Performance .........................................................................................................................97 G.2.6.5 Decomposition......................................................................................................................97

61850-5©1EC:2001 57/526/CDV G.2.6.6 Interaction 98 G.2.7 Event Management (SER) 98 G.2.7.1 Task.... …98 G.2.7.2 Starting criteria................. 98 G.2.7.3 Result.… ..98 G.2.7.4 Performance……… .98 G.2.7.5 Dec0mp0siti0n…… …98 G.2.7.6 Interaction .98 G.2.8 Data retrieval of configuration data and settings........... 98 G.2.8.1 Task.......... …98 G.2.8.2 Starting criteria........................ .99 G.2.8.3 Result............ 99 G.2.8.4 Performance… …99 G.2.8.5 Decomposition .99 G.2.8.6 Interaction …99 G.2.9 Disturbance/Fault record retrieval 99 G.2.9.1 Task... 99 G.2.9.2 Starting criteria. ..99 G.2.9.3 Resuult....... 99 G.2.9.4 Performance .99 G.2.9.5 Decomposition 100 G.2.9.6 Interaction 100 G.2.10 Log management..…....… 100 G.3 LOCAL PROCESS AUTOMATION FUNCTIONS 100 G.3.1 Protection function (Generic).... 100 G.3.1.1 Task ...... 100 G.3.1.2 Starting criteria. ,100 G.3.1.3 Result.… 100 G.3.1.4 Performance 100 G.3.1.5 Decomposition 100 G.3.1.6 Interaction. 101 G.3.2 Distance protection (Example of protection function) 101 G.3.2.1 Task......... 101 G.3.2.2 Starting criteria. 101 G.3.2.3 Result........ 101 G.3.2.4 Performance 101 G.3.2.5 Decomposition. 101 G.3.2.6 Interaction 101 G.3.3 Bay interlocking 101 G.3.3.1 Task.… 101 G.3.3.2 Starting criteria 102 G.3.3.3 Result.… 102 G.3.3.4 Performance... 102 G.3.3.5 Decomposition. 102 G.3.3.6 Interaction......... 102 G.4 DISTRIBUTED AUTOMATIC SUPPORT FUNCTIONS 102 G.4.1 Station-wide interlocking 102 G.4.1.1 Tsk.… 102 G.4.1.2 Starting criteria. 103 G.4.1.3 103 G.4.1.4 Performance… 103 G.4.1.5 Decomposition. 103 G.4.1.6 Interaction............ 103 G.4.2 Distributed synchr0 check.… 103 G.4.2.1 Task.… 103 G.4.2.2 Starting criteria.… 104 G.4.2.3 Result… 104 G.4.2.4 Performance… 104 G.4.2.5 Decomposition. 104 G.4.2.6●Interaction 104 G.3 Breaker failure...... 104 G.4.3.1 104 G.4.3.2 Starting criteria. 104 G.4.3.3 Result.... 104 G.4.3.4 Performance..... .104 G.4.3.5 Decomposition. …… 104 G.4.3.6 Interaction...... 104 G.4.4 Automatic protection adaptation (Generic) 105

   61850-5  IEC:2001 57/526/CDV 7 G.2.6.6 Interaction ............................................................................................................................98 G.2.7 Event Management (SER) ............................................................................................ 98 G.2.7.1 Task .....................................................................................................................................98 G.2.7.2 Starting criteria.....................................................................................................................98 G.2.7.3 Result...................................................................................................................................98 G.2.7.4 Performance .........................................................................................................................98 G.2.7.5 Decomposition......................................................................................................................98 G.2.7.6 Interaction ............................................................................................................................98 G.2.8 Data retrieval of configuration data and settings......................................................... 98 G.2.8.1 Task .....................................................................................................................................98 G.2.8.2 Starting criteria.....................................................................................................................99 G.2.8.3 Result...................................................................................................................................99 G.2.8.4 Performance .........................................................................................................................99 G.2.8.5 Decomposition......................................................................................................................99 G.2.8.6 Interaction ............................................................................................................................99 G.2.9 Disturbance/Fault record retrieval .............................................................................. 99 G.2.9.1 Task .....................................................................................................................................99 G.2.9.2 Starting criteria.....................................................................................................................99 G.2.9.3 Result...................................................................................................................................99 G.2.9.4 Performance .........................................................................................................................99 G.2.9.5 Decomposition.................................................................................................................... 100 G.2.9.6 Interaction .......................................................................................................................... 100 G.2.10 Log management ....................................................................................................... 100 G.3 LOCAL PROCESS AUTOMATION FUNCTIONS ......................................................................... 100 G.3.1 Protection function (Generic) .................................................................................... 100 G.3.1.1 Task ................................................................................................................................... 100 G.3.1.2 Starting criteria................................................................................................................... 100 G.3.1.3 Result................................................................................................................................. 100 G.3.1.4 Performance ....................................................................................................................... 100 G.3.1.5 Decomposition.................................................................................................................... 100 G.3.1.6 Interaction .......................................................................................................................... 101 G.3.2 Distance protection (Example of protection function) ................................................ 101 G.3.2.1 Task ................................................................................................................................... 101 G.3.2.2 Starting criteria................................................................................................................... 101 G.3.2.3 Result................................................................................................................................. 101 G.3.2.4 Performance ....................................................................................................................... 101 G.3.2.5 Decomposition.................................................................................................................... 101 G.3.2.6 Interaction .......................................................................................................................... 101 G.3.3 Bay interlocking ........................................................................................................ 101 G.3.3.1 Task ................................................................................................................................... 101 G.3.3.2 Starting criteria................................................................................................................... 102 G.3.3.3 Result................................................................................................................................. 102 G.3.3.4 Performance ....................................................................................................................... 102 G.3.3.5 Decomposition.................................................................................................................... 102 G.3.3.6 Interaction .......................................................................................................................... 102 G.4 DISTRIBUTED AUTOMATIC SUPPORT FUNCTIONS.................................................................. 102 G.4.1 Station-wide interlocking........................................................................................... 102 G.4.1.1 Task ................................................................................................................................... 102 G.4.1.2 Starting criteria................................................................................................................... 103 G.4.1.3 Result................................................................................................................................. 103 G.4.1.4 Performance ....................................................................................................................... 103 G.4.1.5 Decomposition.................................................................................................................... 103 G.4.1.6 Interaction .......................................................................................................................... 103 G.4.2 Distributed synchrocheck........................................................................................... 103 G.4.2.1 Task ................................................................................................................................... 103 G.4.2.2 Starting criteria................................................................................................................... 104 G.4.2.3 Result................................................................................................................................. 104 G.4.2.4 Performance ....................................................................................................................... 104 G.4.2.5 Decomposition.................................................................................................................... 104 G.4.2.6 Interaction .......................................................................................................................... 104 G.4.3 Breaker failure .......................................................................................................... 104 G.4.3.1 Task ................................................................................................................................... 104 G.4.3.2 Starting criteria................................................................................................................... 104 G.4.3.3 Result................................................................................................................................. 104 G.4.3.4 Performance ....................................................................................................................... 104 G.4.3.5 Decomposition.................................................................................................................... 104 G.4.3.6 Interaction .......................................................................................................................... 104 G.4.4 Automatic protection adaptation (Generic) ................................................................ 105

61850-5©1EC:2001 57/526/CDV G.4.4.1 Task…… 105 G.4.4.2 Starting criteria. 105 G.4.4.3 Result.… .105 G.4.4.4 Prf0 rmance… 105 G.4.4.5 Decomposition 105 G.4.4.6 Interaction... 105 G.4.5 Reverse blocking function (Example for automatic protection adaptation) 105 G.4.5.1 Task...... 105 G.4.5.2 Starting criteria. 105 G.4.5.3 Result…… ,106 G.4.5.4 Performance 106 G.4.5.5 DeC0mp0siti0n.…7 .106 G.4.5.6 Interacti0n,… .106 G.4.6 Load shedding 106 G.4.6.1 Task................................................... 106 G.4.6.2 Starting criteria.……… .......106 G.4.6.3 Result… 106 G.4.6.4 Performance ................................ .106 G.4.6.5 Decomposition. 106 G.4.6.6 106 G.4.7 Interaction.... L0adre5t0rati0n.… 107 G.4.7.1 Task........ 107 G.4.7.2 Starting criteria.. 107 G.4.7.3 Result… 107 G.4.7.4 Performance.… 107 G.4.7.5 Decomposition 107 G.4.7.6 Interaction..… 107 G.4.8 Voltage and reactive power control 107 G.4.8.1 Task… 107 G.4.8.2 Starting criteria. 107 G.4.8.3 Result… 107 G.4.8.4 Performance.… 107 G.4.8.5 Decomposition. 108 G.4.8.6 Interaction Task. 108 G.4.9 Infeed switchover and transformer change................................................... 108 G.4.9.1 Task… 108 G.4.9.2 Starting criteria. 108 G.4.9.3 108 G.4.9.4 Performance.............. 108 G.4.9.5 Decomposition. 108 G.4.9.6 Interaction 108 G.4.10 Automatic switching sequences......................... 108 G.4.10.1 Task.…… 108 G.4.10.2 Starting criteria.......................... .109 G.4.10.3 Result......… 109 G.4.10.4 Performance......... 109 G.4.10.5 Decomposition........... 109 G.4.10.6 Interaction... .109 ANNEX H(INFORMATIVE)RESULTS FROM FUNCTION DESCRIPTION... 110 H.1 FUNCTION-FUNCTION INTERACTION.... 110 H.2 FUNCTION DECOMPOSITION INTO LOGICAL NODES.... 112 ANNEX I (INFORMATIVE)PERFORMANCE CALCULATIONS..... 116 L.1 PICOM METHOD… 116 L.1.1 Approach… 116 1.1.2 Evaluation of dynamic performance requirements.. 116 L1.2.1 Selected substations and associated layouts...................................... 116 I.1.2.2 Assigned protection and control functions (logical nodes)................................. ,117 L.1.2.3 Busload evaluation assumptions...................... 117 1.1.3 Results of calculations...... 118 L.1.3.1 Overview.... 118 1.1.3.2 Substation T 1-1 119 1.1.3.3 Substati0nD2-l… 120 1.1.3.4 Substation T 1-2........................................................................... 121 L.1.3.5 Substation T 2-2...... 122 L.1.3.5.1 Double-Busbar /Double-Busbar-Arrangement.. 122

   61850-5  IEC:2001 57/526/CDV 8 G.4.4.1 Task ................................................................................................................................... 105 G.4.4.2 Starting criteria................................................................................................................... 105 G.4.4.3 Result................................................................................................................................. 105 G.4.4.4 Performance ....................................................................................................................... 105 G.4.4.5 Decomposition.................................................................................................................... 105 G.4.4.6 Interaction .......................................................................................................................... 105 G.4.5 Reverse blocking function (Example for automatic protection adaptation) ................. 105 G.4.5.1 Task ................................................................................................................................... 105 G.4.5.2 Starting criteria................................................................................................................... 105 G.4.5.3 Result................................................................................................................................. 106 G.4.5.4 Performance ....................................................................................................................... 106 G.4.5.5 Decomposition.................................................................................................................... 106 G.4.5.6 Interaction .......................................................................................................................... 106 G.4.6 Load shedding ........................................................................................................... 106 G.4.6.1 Task ................................................................................................................................... 106 G.4.6.2 Starting criteria................................................................................................................... 106 G.4.6.3 Result................................................................................................................................. 106 G.4.6.4 Performance ....................................................................................................................... 106 G.4.6.5 Decomposition.................................................................................................................... 106 G.4.6.6 Interaction .......................................................................................................................... 106 G.4.7 Load restoration........................................................................................................ 107 G.4.7.1 Task ................................................................................................................................... 107 G.4.7.2 Starting criteria................................................................................................................... 107 G.4.7.3 Result................................................................................................................................. 107 G.4.7.4 Performance ....................................................................................................................... 107 G.4.7.5 Decomposition.................................................................................................................... 107 G.4.7.6 Interaction .......................................................................................................................... 107 G.4.8 Voltage and reactive power control ........................................................................... 107 G.4.8.1 Task ................................................................................................................................... 107 G.4.8.2 Starting criteria................................................................................................................... 107 G.4.8.3 Result................................................................................................................................. 107 G.4.8.4 Performance ....................................................................................................................... 107 G.4.8.5 Decomposition.................................................................................................................... 108 G.4.8.6 Interaction Task.................................................................................................................. 108 G.4.9 Infeed switchover and transformer change................................................................. 108 G.4.9.1 Task ................................................................................................................................... 108 G.4.9.2 Starting criteria................................................................................................................... 108 G.4.9.3 Result................................................................................................................................. 108 G.4.9.4 Performance ....................................................................................................................... 108 G.4.9.5 Decomposition.................................................................................................................... 108 G.4.9.6 Interaction .......................................................................................................................... 108 G.4.10 Automatic switching sequences .................................................................................. 108 G.4.10.1 Task................................................................................................................................ 108 G.4.10.2 Starting criteria............................................................................................................... 109 G.4.10.3 Result ............................................................................................................................. 109 G.4.10.4 Performance.................................................................................................................... 109 G.4.10.5 Decomposition ................................................................................................................ 109 G.4.10.6 Interaction ...................................................................................................................... 109 ANNEX H (INFORMATIVE) RESULTS FROM FUNCTION DESCRIPTION ......................... 110 H.1 FUNCTION-FUNCTION INTERACTION................................................................................... 110 H.2 FUNCTION DECOMPOSITION INTO LOGICAL NODES .............................................................. 112 ANNEX I (INFORMATIVE) PERFORMANCE CALCULATIONS ........................................... 116 I.1 PICOM METHOD .............................................................................................................. 116 I.1.1 Approach ...................................................................................................................... 116 I.1.2 Evaluation of dynamic performance requirements ......................................................... 116 I.1.2.1 Selected substations and associated layouts ......................................................................... 116 I.1.2.2 Assigned protection and control functions (logical nodes).................................................... 117 I.1.2.3 Busload evaluation assumptions .......................................................................................... 117 I.1.3 Results of calculations .................................................................................................. 118 I.1.3.1 Overview............................................................................................................................ 118 I.1.3.2 Substation T 1-1 ................................................................................................................. 119 I.1.3.3 Substation D 2-1 ................................................................................................................. 120 I.1.3.4 Substation T 1-2 ................................................................................................................. 121 I.1.3.5 Substation T 2-2 ................................................................................................................. 122 I.1.3.5.1 Double-Busbar / Double-Busbar-Arrangement................................................................ 122

61850-5©1EC:2001 9 571526/CDV 1.1.3.5.2 Ring-Bus /Straight-Bus-Arrangement. 123 I.2 LAN SIMULATION METHOD FOR DYNAMIC PERFORMANCE EVALUATION ............... .124 12.1 Approach… 124 1.2.1.1 Determination of LAN Traffic …124 1.2.1.2 Message Simultaneity.... .126 1.2.1.3 Impact of Message Volume on LAN Dynamic Performance....... ..127 L.2.2 Conclusions.… 128 12.3 Summary and Details of LAN Traffic.. 129 1.2.4 Ethernet Shared and Switched Hub Configurations......... 133 ANNEX J(INFORMATIVE)EXAMPLES FOR PROTECTION FUNCTIONS IN COMPENSATED NETWORKS................................. …134 J.1 THE TRANSIENT EARTH FAULT(PTEF) 134 J.2 SHORT TERM BYPASS (YPSH).. 135 J.3 THE DOUBLE EARTH FAULT(PTOC)....................... 135 ANNEX K (INFORMATIVE)BIBLIOGRAPHIC ANNEX.............. …136 not for reprod

   61850-5  IEC:2001 57/526/CDV 9 I.1.3.5.2 Ring-Bus / Straight-Bus-Arrangement ............................................................................ 123 I.2 LAN SIMULATION METHOD FOR DYNAMIC PERFORMANCE EVALUATION ............................ 124 I.2.1 Approach ...................................................................................................................... 124 I.2.1.1 Determination of LAN Traffic............................................................................................. 124 I.2.1.2 Message Simultaneity ......................................................................................................... 126 I.2.1.3 Impact of Message Volume on LAN Dynamic Performance ................................................. 127 I.2.2 Conclusions .................................................................................................................. 128 I.2.3 Summary and Details of LAN Traffic ............................................................................. 129 I.2.4 Ethernet Shared and Switched Hub Configurations ....................................................... 133 ANNEX J (INFORMATIVE) EXAMPLES FOR PROTECTION FUNCTIONS IN COMPENSATED NETWORKS ................................................................................................... 134 J.1 THE TRANSIENT EARTH FAULT (PTEF) .............................................................................. 134 J.2 SHORT TERM BYPASS (YPSH) ............................................................................................ 135 J.3 THE DOUBLE EARTH FAULT (PTOC) ................................................................................... 135 ANNEX K (INFORMATIVE) BIBLIOGRAPHIC ANNEX ......................................................... 136

61850-5©1EC:2001 10 57/526/CDV INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMUNICATION NETWORKS AND SYSTEMS IN SUBSTATIONS Part 5:Communication Requirements for Functions and Device Models FOREWORD 1)The IEC (International Electrotechnical Commission)is a world-wide organization for standardization comprising all national electrotechnical committees (IEC National Committees).The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields.To this end and in addition to other activities,the IEC publishes International Standards.Their preparation is entrusted to technical committees;any IEC National Committee interested in the subject dealt with may participate in this preparatory work.International,governmental and non-governmental organizations liaising with the IEC also participate in this preparation.The IEC collaborates closely with the International Organization for Standardization (ISO)in accordance with conditions determined by agreement between the two organizations. 2)The formal decisions or agreements of the IEC on technical matters express,as nearly as possible,an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3)The documents produced have the form of recommendations for international use and are published in the form of standards,technical reports or guides and they are accepted by the National Committees in that sense. 4)In order to promote international unification,IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards.Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5)The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6)Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights.The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 611850-5 has been prepared by WG 10,11,and 12 of IEC technical committee 57:Communication networks and systems in substations This document is part of the standard series IEC 61850,a set of specifications for communication networks and systems in substations.At time of publication of this part,the following parts where intended to be part of IEC 61850: 1EC61850-1 Communication networks and systems in substations-Part 1:Introduction and overview 1EC61850-2 Communication networks and systems in substations-Part 2:Glossary 1EC61850-3 Communication networks and systems in substations -Part 3:General requirements IEC 61850-4Communication networks and systems in substations -Part 4:System and project management IEC61850-5 Communication networks and systems in substations -Part 5: Communication requirements for functions and devices models

   61850-5  IEC:2001 57/526/CDV 10 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________ COMMUNICATION NETWORKS AND SYSTEMS IN SUBSTATIONS Part 5:Communication Requirements for Functions and Device Models FOREWORD 1) The IEC (International Electrotechnical Commission) is a world-wide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical reports or guides and they are accepted by the National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 611850-5 has been prepared by WG 10, 11, and 12 of IEC technical committee 57: Communication networks and systems in substations. This document is part of the standard series IEC 61850, a set of specifications for communication networks and systems in substations. At time of publication of this part, the following parts where intended to be part of IEC 61850: IEC 61850-1 Communication networks and systems in substations – Part 1: Introduction and overview IEC 61850-2 Communication networks and systems in substations – Part 2: Glossary IEC 61850-3 Communication networks and systems in substations – Part 3: General requirements IEC 61850-4 Communication networks and systems in substations – Part 4: System and project management IEC 61850-5 Communication networks and systems in substations – Part 5: Communication requirements for functions and devices models