1、BRITISH STANDARD BS EN 61733-1:1996 IEC 1733-1: 1995 Measuring relays and protection equipment Protection communication interfacing Part 1: General The European Standard EN 61733-1:1996 has the status of a British Standard ICS 29.120.70; 35.200BSEN61733-1:1996 This British Standard, having been prep
2、ared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comes intoeffect on 15 July 1996 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference PEL/95 Draft for comment 92/28240 DC ISBN 0 580
3、 25675 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PEL/95, Measuring relays and protection equipment, upon which the following bodies were represented: Association of Consulting Engineers Electricity Association Fed
4、eration of the Electronics Industry Transmission and Distribution Association (BEAMA Ltd.) Amendments issued since publication Amd. No. Date CommentsBSEN61733-1:1996 BSI 09-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 61733-1 3 List of ref
5、erences Inside back coverBSEN61733-1:1996 ii BSI 09-1999 National foreword This British Standard has been prepared by Technical Committee PEL/95 and is the English language version of EN 61733-1:1996 Measuring relays and protection equipment Protection communication interfacing Part 1: General, publ
6、ished by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC 1733-1:1995 published by the International Electrotechnical Commission (IEC). This standard was intended to be the first of a series from TC 95. However, as TC 57, Telecontrol, protection and ass
7、ociated telecommunications for electric power systems, also has an interest in this field the work will be continued on a joint basis between the two technical committees. Administration and publication, however, will be undertaken by TC 57. A British Standard does not purport to include all the nec
8、essary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred to Corresponding British Standard IEC 255-1:1975 BS 5992 Elec
9、trical relays Part 2:1980 Specification for all-or-nothing electrical relays ISO 7498:1984 BS 6568 Reference model of open systems interconnection Part 1:1988 Basic reference model (incorporating connectionless-mode transmission) Summary of pages This document comprises a front cover, an inside fron
10、t cover, pagesi andii, theENtitle page, pages2 to14, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISC
11、HE NORM EN 61733-1 January 1996 ICS 29.120.70; 35.200 Descriptors: Measuring relays, protection equipment, communication interfacing English version Measuring relays and protection equipment Protection communication interfacing Part 1: General (IEC 1733-1:1995) Relais de mesure et dispositifs de pro
12、tection Interface de communication des protections Partie 1: Gnralits (CEI 1733-1:1995) Merelais und Schutzeinrichtungen Schutz-Kommunikations-Schnittstelle Teil 1: Allgemeines (IEC 1733-1:1995) This European Standard was approved by CENELEC on 1995-11-28. CENELEC members are bound to comply with th
13、e CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat o
14、r to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the offic
15、ial versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnica
16、l Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1996 Copyright reserved to CENELEC members Ref. No. EN 61733-1:1996 EEN61733-1:1996 BSI 09-1999 2 Foreword The text of document
17、95/17/FDIS, future edition 1 of IEC 1733-1, prepared by IEC TC 95, Measuring relays and protection equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61733-1 on 1995-11-28. The following dates were fixed: Annexes designated “normative” are part of the body of
18、 the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Contents Page Foreword 2 Introduction 3 1 Scope and object 5 2 Normative references 5 3 Definitions 5 4 Types of information identifiable in an electrical installation 5 5 Typical structure of a hierarchical
19、system 6 6 Communication system arrangement of an electrical installation 6 7 Standard parameters 7 Annex ZA (normative) Normative references to international publications with their corresponding European publications 13 Figure 1 Block diagram of main links of TC 95 with other IEC committees 4 Figu
20、re 2 Example of a typical information flow involving a feeder unit 8 Figure 3 Typical functional structure and information flow in a hierarchical system (e.g. EHV/HV substation) 9 Figure 4 Example of intelligent distributed communicating devices in an open system 10 Figure 5 Detailed block diagram o
21、f a device communicating to the process and to the centralized control equipment 11 Figure 6 Detailed block diagram of a device communicating to higher and lower levels of automation system 12 latest date by which the EN has to be implemented at national level by publication of an identical national
22、 standard or by endorsement (dop) 1996-09-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 1996-09-01EN61733-1:1996 BSI 09-1999 3 Introduction This International Standard is Part 1 of a series of standards covering protection communication interfacing
23、. This standard presents the general overview of the structure of communication-based, hierarchical control and monitoring systems in electrical installations. The overview outlines the architectures, protocol profiles, and other, design features presented in prospective additional parts. Today the
24、availability of low-cost microprocessors, with increased capability, supports the concept of electrical installations in which distributed devices, built by different manufacturers, can be used in an open system. In an open system the microprocessor provides the base element of distributed functiona
25、l units that allows the exchange of information inside the system via communication links. The above concept will only be achieved in practice after an IEC standard is made available that clearly defines the communication criteria among distributed and centralised devices, the interoperability rules
26、 and the responsibility of different digital devices (protection, monitoring and control) that operate together in the same open system. The following subjects have been included in this part of IEC 1733: a) typical hierarchical structure of an electrical installation; b) typical information interch
27、ange in an electrical installation; c) needs for communication between digital protection equipment and related monitoring and control devices; d) the transmission media. The main links between other IEC committees and TC 95 are shown in the following block diagram.EN61733-1:1996 4 BSI 09-1999 Figur
28、e 1 Block diagram of main links of TC 95 with other IEC committeesEN61733-1:1996 BSI 09-1999 5 1 Scope and object This part of IEC 1733 applies to standardisation of protection communication interfacing for digital protection equipment and related control and monitoring devices to be used in the sam
29、e electrical installation. This standard gives general information about the functional levels in a hierarchical structure and about the typical organisation of devices communicating in an open system. In this standard, an electrical installation refers to substations for voltage levels above 1 kV a
30、nd power stations. Communication outside a particular electrical installation (for example communication between a substation and a remote control centre or another substation) is outside the scope of this standard. Communication between dedicated devices provided by the same manufacturer, for examp
31、le differential protection schemes, is outside the scope of this series of standards. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 1733. At the time of publication, the editions indicated
32、were valid. All normative documents are subject to revision, and parties to agreements based on this part of IEC 1733 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently
33、valid International Standards. IEC 255, Electrical relays. ISO 7498:1984, Information processing systems Open Systems Interconnection Basic Reference Model. 3 Definitions For the purpose of this part of IEC 1733 the following definitions apply: 3.1 protection communication interfacing interfacing th
34、at allows the interconnectivity and interoperability between protection, monitoring and control devices, built by different manufacturers installed in the same electrical installation 3.2 hierarchical system system organised in different hierarchical functional levels.with communication between them
35、 3.3 interconnectivity capability of devices to exchange data (see Figure 5) 3.4 interoperability capability of different devices to exchange commonly understandable information (see Figure 5) 3.5 interchangeability capability of different devices, built by different manufacturers, to be interchange
36、d with one another without modifying the system operating characteristics (see Figure 5) 3.6 communication element part of a connected device which communicates with other elements via the communication network 3.7 communication interface (physical and logical) interface of a device, operating in an
37、 open system, that allows exchange of information between devices of the same or different functional levels in a hierarchical system (for example between distributed unit devices and a centralized equipment) 3.8 connector coupling device employed to connect the medium of one circuit or communicatio
38、n element with that of another circuit or communication element 3.9 device physical entity connected to the communication network which may have a control element and/or a final element (transducer, actuator, etc.) 4 Types of information identifiable in an electrical installation Figure 2 shows a ty
39、pical information flow within a feeder unit. The typical information flow in an electrical installation can be grouped into the following six categories: a) position information (for example, position of disconnectors and circuit-breakers); b) commands (for example closing and opening commands of di
40、sconnectors and circuit-breakers); c) anomalies and status information (of the different devices of the electrical installation);EN61733-1:1996 6 BSI 09-1999 d) measurands; e) fault information, for example from protection devices; f) parameter information (settings, etc.). 5 Typical structure of a
41、hierarchical system 5.1 Structure of a hierarchical system Figure 3 shows a typical functional structure of an electrical installation (for example an EHV/HV substation) organised in a hierarchical system. There are three functional levels: a) level 0: process level this level includes the primary e
42、quipment (instrument transformers, circuit breakers, disconnectors, etc.). b) level 1: unit level this level includes functions directly related to primary equipment, for example: monitoring and metering; protection; automatic reclosing; control. c) level 2: substation level this level includes comm
43、on substation functions, for example: monitoring and metering; control; telemetry and telecontrol. 5.2 Information exchange Figure 3 shows a block diagram of a typical EHV/HV substation. The information (analog and/or digital) can be exchanged between devices operating at the same functional level o
44、r between devices operating at different functional levels. The communication between devices may be achieved by either conventional point-to-point connections (medium: multicore cable) and/or a communication network. 6 Communication system arrangement of an electrical installation 6.1 Device commun
45、ication The secondary equipment of an electrical installation includes a number of functions. Each device includes at least two important parts, as shown in Figure 4: communication machine; application machine. The communication machines connect two or more application machines, via an interface and
46、 medium, to allow the exchange of information. In order to allow the above-mentioned exchange of information, the transmission protocol(s) shall be compatible, in all cases where communication between devices of different manufacturers is required. The communication machine as shown in Figure 4 usua
47、lly includes both hardware (communication chips, controller, transceivers) and software and is designed by the device manufacturer. The communication sub-system includes the physical medium and the communication machine of communicating devices: this is shown by the dashed zone in Figure 4. 6.2 Mode
48、l of an intelligent device Figure 5 and Figure 6 show a more detailed representation of intelligent distributed communicating devices. Referring to Figure 5 the lower connecting terminals represent the physical connection between the device and the process, for example in the case of a protection eq
49、uipment the connecting terminals needed to connect the CTs, VTs and circuit-breaker, etc., via a point-to-point conventional link (cable). In the communicating device (D) the block “application machine” can be sub-divided into three parts: a) process interface, whose task is the acquisition of analog signals and the analog to digital signal conversion. The process interface also sends commands to and receives status from the process (for example circuit breaker). The process interface is dependent on the physical con
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