1、NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC 2554 3 Premire dition First edition 1980 Re la is lectriques Treizime parti e: Relais diffrentiels pourcentage Electrical relays Part 13: Biased (percentage) differential relays Numro de rfrence Reference number CEI/IEC 255-13: 1980 Validit de la p
2、resente publication Le contenu technique des publications de la CE1 est cons- tamment revu par la CE1 afin quil reflte ltat actuel de la technique. Des renseignements relatifs la date de reconfirmation de la publication sont disponibles auprs du Bureau Central de la CEI. Les renseignements relatifs
3、ces rvisions, ltablis- sement des ditions rvises et aux amendements peuvent tre obtenus auprs des Comits nationaux de la CE1 et dans les documents ci-dessous: Bulletin de la CE1 Annuaire de la CE1 Publi annuellement Catalogue des publications de la CE1 Publi annuellement et mis jour rgulirement Term
4、 i no log ie En ce qui concerne la terminologie gnrale, le lecteur se reportera la CE1 50: Vocabulaire Electrotechnique Inter- national (VEI), qui se prsente sous forme de chapitres spars traitant chacun dun sujet dfini. Des dtails complets sur le VE1 peuvent tre obtenus sur demande. Voir galement l
5、e dictionnaire multilingue de la CEI. Les termes et dfinitions figurant dans la prsente publi- cation ont t soit tirs du VEI, soit spcifiquement approuvs aux fins de cette publication. Symboles graphiques et littraux Pour les symboles graphiques, les symboles littraux et les signes dusage gnral appr
6、ouvs par la CEI, le lecteur consultera: - la GEI 27: Symboles littraux a utiliser en lectro-technique; - la CE1 417: Symboles graphiques utilisables sur le matriel. Index, relev et compilation des feuilles individuelles; - la CE I 61 7: Symboles graphiques pour schmas; et pour les appareils lectromd
7、icaux, - la CE1 878: Symboles graphiques pour quipements lectriques en pratique mdicale. Les symboles et signes contenus dans la prsente publi- cation ont t soit tirs de la CE1 27, de la CE1 417, de la CE1 617 etlou de la CE1 878, soit spcifiquement approuvs aux fins de cette publication. Publicatio
8、ns de la CE1 tablies par le mme comit dtudes Lattention du lecteur est attire sur les listes figurant la fin de cette publication, qui numrent les publications de la CE1 prpares par le comit dtudes qui a tabli la prsente publication. Validity of this publication The technical content of IEC publicat
9、ions is kept under constant review by the IEC, thus ensuring that the content reflects current technology. Information relating to the date of the reconfirmation of the publication is available from the IEC Central Office. Information on the revision work, the issue of revised editions and amendment
10、s may be obtained from IEC National Committees and from the following IEC sources: 0 IEC Bulletin IEC Yearbook Catalogue of IEC publications Published yearly Published yearly with regular updates Terminology For general terminology, readers are referred to IEC 50: International Electrotechnical Voca
11、bulary (I EV), which is issued in the form of separate chapters each dealing with a specific field. Full details of the IEV will be supplied on request. See also the IEC Multilingual Dictionary. The terms and definitions contained in the present publi- cation have either been taken from the IEV or h
12、ave been specifically approved for the purpose of this publication. Graphical and letter symbols For graphical symbols, and letter symbols and signs approved by the IEC for general use, readers are referred to publications: - IEC 27: Letter symbols to be used in electrical technology; - IEC 417: Gra
13、phical symbols for use on equipment. Index, survey and compilation of the single sheets; - I EC 61 7: Graphical symbols for diagrams; and for medical electrical equipment, - equipment in medical practice. IEC 878: Graphical symbols for elecfromedical The symbols and signs contained in the present pu
14、blication have either been taken from IEC 27, IEC 417, IEC 617 and/or IEC 878, or have been specifically approved for the purpose of this publication. IEC publications prepared by the same technical committee The attention of readers is drawn to the end pages of this publication which list the IEC p
15、ublications issued by the technical committee which has prepared the present publication. NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC 2554 3 Premire dition First edition 1980 Re la is lect ri q ues Treizime partie: Relais diffrentiels pourcentage Electrical relays Part 13: Biased (percentage
16、) differential relays O CE1 1980 Droits de reproduction rservs -Copyright - all rights reserved Aucune partie de cette publication ne peut Niveau II: Normes gnriques concernant, en tout ou partie, une famille de relais; Niveau III: Normes applicables, en tout ou partie, un groupe dtermin de relais;
17、Niveau IV: Prescriptions particulires ou spcifications concernant un type (ou modle) dtermin de relais. Cette norme, applicable un groupe particulier de relais de mesure plusieurs grandeurs dalimentation dentre, est hirarchiquement un document de troisime niveau. Autres publications de la CEI cites
18、dans ia prsente norme: Publications nos 255-0-20: Relais lectriques - Caractristiques fonctionnelles des contacts de relais lectriques. 255-5 : 255-6 : 255-6A: Cinquime partie: Essais disolement des relais lectriques. Sixime partie: Relais de mesure plusieurs grandeurs dalimentation dentre. Premier
19、complment la Publication 255-6 (1978). -5- INTERNATIONAL ELECTROTECHNICAL COMMISSION ELECTRICAL RELAYS Part 13 : Biased (percentage) differential relays FOREWORD 1) The formal decisions or agreements of the IEC on technical matters, prepared by Technical Committees on which ali the National Committe
20、es having a special interest therein are represented, express, as nearly as possible. an international consensus of opinion on the subjects dealt with. 2) They have the form of recommendations for international use and they are accepted by the National Committees in that sense. 3) In order to promot
21、e international unification, the IEC expresses the wish that all National Committees should adopt the text of the IEC recommendation for their national rules in so far as national conditions will permit. Any divergence between the IEC recommendation and the corresponding national rules should, as fa
22、r as possible, be clearly indicated in the latter. PREFACE This standard has been prepared by Sub-Committee 41B: Measuring Relays, of IEC Technical Committee No. 41: Drafts were discussed at the meetings held Nice in 1976 and in Milan in 1977. A draft, Document 4lB(Central OMice)l3, Electrical Relay
23、s. was submitted to the National Committees for approval under the Six Months Rule in October 1978. The National Committees of the following countries voted explicitly in favour of publication: Australia Austria Belgium Denmark France Germany Italy Japan Korea (Republic of) Korea (Democratic Peoples
24、 Republic of) Norway Poland Romania South Africa (Republic of) Sweden Switzerland Turkey United Kingdom United States of America Technical Committee No. 41 has decided to classify its future publications on a hierarchical basis as follows: First level: General standards; Second level: Generic standa
25、rds relating wholly or partly to a family of relays; Third level: Fourth level: Particular requirements or specifications relating to a specific type (or pattern) of relay. Standards applicable wholly or partly to a particular group of relays; This standard, applicable to a particular group of measu
26、ring relays with more than one input enerzizing quantity, is hierarchically a third-level document. Other IEC publications quoted in this standard: Publications Nos. 255-0-20: Electrical Relays-Contact Performance of Electrical Relays. 255-5: 255-6: 255-6A: Part 5: Insulation Tests for Electrical Re
27、lays. Part 6: Measuring Relays with More than One Input Energizing Quantit). First Supplement to Publication 255-6 (1978). -6- RELAIS LECTRIQUES Treizime partie: Relais diffrentiels pourcentage SECTION UN - DOMAINE DAPPLICATION ET DFINITIONS 1. Domaine dapplication La prsente norme spcifie les presc
28、riptions fonctionnelles des relais diffrentiels pour- centage. Ces relais forment une sous-famille particulire de relais de mesure plusieurs grandeurs dalimentation dentre, dfinis dans la Publication 255-6 de la CE I : Relais lec- triques, Sixime partie : Relais de mesure plusieurs grandeurs dalimen
29、tation dentre, et dont les valeurs des caractristiques doivent tre dclares par le constructeur. Elle spcifie aussi les mthodes de prsentation des caractristiques fonctionnelles et de leurs valeurs. La prsente norme sapplique aux relais conus pour la dtection des dfauts pouvant survenir particulireme
30、nt dans les alternateurs, moteurs courant alternatif et transformateurs. Elle ne sapplique ni aux relais destins la protection des jeux de barres ni aux relais destins protger les lignes de transport par des systmes de protection diffrentielle, utilisant par exemple des fils pilotes. Cette norme cou
31、vre la majorit des relais diffrentiels pourcentage et galement ceux pour lesquels le pourcentage saccrot par exemple avec le courant traversant. Dans des cas particuliers, des prescriptions supplmentaires peuvent tre dfinies dans des normes nationales. Tous les essais de cette norme sont des essais
32、de type. Cette norme sapplique seulement aux relais ltat neuf. 2. Dfinitions Pour les termes gnraux non dfinis dans la prsente norme, il y a lieu de se rfrer au Vocabulaire Electrotechnique International de la CE1 (V.E.I.), la Publication 255-6 de la CEI, et la Publication 255-6A de la CEI: Premier
33、complment la Publication 255-6 (1978). Les dfinitions ci-aprs sont applicables pour la prsente norme : 2.1 Relais diffrentiel Relais qui, par sa conception, est destin rpondre au courant diffrentiel. 2.2 Relais diffrentiel pourcentage Relais diffrentiel pour lequel la rponse est modifie par un coura
34、nt de retenue dune manire prdtermine. 2.3 Courant diffrentiel Dans un relais diffrentiel, courant qui est la diffrence algbrique entre les courants spcifis entrant et sortant. 2.4 Courant de retenue Dans un relais diffrentiel, combinaison des courants entrant et sortant et dont laction tend sopposer
35、 au fonctionnement du relais. -7- ELECTRICAL RELAYS Part 13 : Biased (percentage) differential relays SECTION ONE - SCOPE AND DEFINITIONS Scope This standard specifies the performance requirements of electrically biased (percentage) differential relays. These relays constitute a particular sub-famil
36、y of measuring relays with more than one input energizing quantity as defined in IEC Publication 255-6, Electrical Relays, Part 6: Measuring Relays with More than One Input Energizing Quantity, and the parameters whose values are to be declared by the manufacturer of such relays. It also specifies m
37、ethods of presentation of the characteristics and performance of these relays. This standard applies to relays designed for the detection of faults particularly in a.c. generators, motors and transformers. It does not apply to relays designed for busbar protection, nor does it apply to current diffe
38、rential (e.g. pilot wire) relays used for the protection of transbission lines. This standard covers the majority of biased (percentage) differential relays and also, for example, those where the restraint percentage increases as the through-current increases. For particular cases, supplementary req
39、uirements may be stated in national standards. All tests in this standard are type tests. This standard applies only to relays in a new condition. 2. Definitions For definitions of general terms not defined in this standard, reference should be made to the I EC International Electrotechnical Vocabul
40、ary (LEV.), to I EC Publication 255-6, and to IEC Publication 255-6A: First supplement to IEC Publication 255-6 (1978). For the purpose of this standard, the following definitions shall apply: 2.1 Differential relay A relay which, by its design, is intended to respond to differential current. 2.2 Bi
41、ased (or percentage) differential relay A differential relay in which the designed response is modified by a restraint current. 2.3 Differential current In a differential relay, a current which is the phasor difference between specified incoming and outgoing currents. 2.4 Restraint current In a differential relay, the combination of incoming and outgoing currents, which restrains operation of the relay.
