IEC 62053-23-ed.2.0

Podrobné informace

Označení: IEC 62053-23-ed.2.0

Datum vydání: 17.06.2020

Stran: 33

Země: Mezinárodní technická norma

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Anotace

IEC 62053-23:2020 applies only to static var-hour meters of accuracy classes 2 and 3 for the measurement of alternating current electrical reactive energy in 50 Hz or 60 Hz networks and it applies to their type tests only. For practical reasons, this document is based on a conventional definition of reactive energy for sinusoidal currents and voltages containing the fundamental frequency only. This document applies to electricity metering equipment designed to: • measure and control electrical energy on electrical networks (mains) with voltage up to 1 000 V AC; • have all functional elements, including add-on modules, enclosed in, or forming a single meter case with exception of indicating displays; • operate with integrated or detached indicating displays, or without an indicating display; • be installed in a specified matching socket or rack; • optionally, provide additional functions other than those for measurement of electrical energy. Meters designed for operation with low power instrument transformers (LPITs as defined in the IEC 61869 series) may be considered as compliant with this document only if such meters and their LPITs are tested together and meet the requirements for directly connected meters. This document does not apply to: • meters for which the voltage line-to-neutral derived from nominal voltages exceeds 1 000 V AC; • meters intended for connection with low power instrument transformers (LPITs as defined in the IEC 61869 series) when tested without such transformers; • metering systems comprising multiple devices (except LPITs) physically remote from one another; • portable meters; • meters used in rolling stock, vehicles, ships and airplanes; • laboratory and meter test equipment; • reference standard meters; • data interfaces to the register of the meter; • matching sockets or racks used for installation of electricity metering equipment; • any additional functions provided in electrical energy meters. This document does not cover measures for the detection and prevention of fraudulent attempts to compromise a meter’s performance (tampering). This second edition cancels and replaces the first edition published in 2003 and its amendment 1:2016. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Removed all meter safety requirements; the meter safety requirements are covered in IEC 62052-31:2015. b) Replaced Ib with In; Ib is no longer used when referencing directly connected meters. c) Moved the descriptions of all general requirements and test methods from IEC 62053-21: 2003, IEC 62053-22: 2003, IEC 62053-23: 2003, IEC 62053-24: 2003 to IEC 62052-11:2020; IEC 62053-21:2020, IEC 62053-22:2020, IEC 62053-23:2020, IEC 62053-24:2020 contain only accuracy class specific requirements. d) Added new requirements and tests concerning: 1) measurement uncertainty and repeatability (7.3, 7.8); 2) influence of fast load current variations (9.4.12); 3) immunity to conducted differential current disturbances in the 2 kHz to 150 kHz frequency range (9.3.8). e) Meters designed for operation with low power instrument transformers (LPITs) may be tested for compliance with this document as directly connected meters. The reactive energy accuracy classes 2 and 3 defined in IEC 62053-23 have also been added to IEC 62053-24. The TC13 WG11 is of the opinion that the testing methodology described in IEC 62053-24 is a better approach to testing of modern reactive energy meters. Consequently, IEC 62053-23 will be withdrawn in the near future, and should not be used for new meter designs. IEC 62053-23:2020 est applicable uniquement aux compteurs statiques denergie reactive des classes de precision 2 et 3, destines a la mesure de lenergie electrique reactive en courant alternatif sur les reseaux electriques en 50 Hz et 60 Hz, et a leurs essais de type. Pour des raisons pratiques, le present document repose sur une definition conventionnelle de lenergie reactive pour intensites et tensions sinusoidales contenant seulement la frequence fondamentale. Le present document sapplique aux equipements de comptage de lelectricite concus pour: • mesurer et piloter lenergie electrique sur les reseaux electriques (secteur) avec une tension allant jusqua 1 000 V en courant alternatif; • avoir tous les elements fonctionnels, y compris les modules complementaires, incorpores dans ou formant un boitier de compteur unique, a lexception des afficheurs; • fonctionner avec des afficheurs integres ou separes, ou sans afficheur; • etre installes dans une embase ou un bati correspondant specifie; • assurer, en option, des fonctions autres que celles relatives au comptage de lenergie electrique. Les compteurs concus pour etre utilises avec des transformateurs de mesure de faible puissance (LPIT, Low Power Instrument Transformers, definis dans la serie IEC 61869) ne peuvent etre soumis a des essais de conformite au present document que si ces compteurs et leurs LPIT sont soumis a lessai ensemble et satisfont aux exigences relatives aux compteurs a branchement direct. Le present document ne sapplique pas: • aux compteurs dont la tension phase-neutre deduite des tensions nominales depasse 1 000 V en courant alternatif; • aux compteurs destines a etre connectes a des transformateurs de mesure de faible puissance (LPIT, definis dans la serie IEC 61869) lorsquils sont soumis a lessai sans ces transformateurs; • aux systemes de comptage comprenant plusieurs dispositifs (a lexception des LPIT) physiquement eloignes les uns des autres; • aux compteurs portatifs; • aux compteurs utilises dans le materiel roulant, les vehicules, les navires et les avions; • aux equipements de laboratoire et dessai des compteurs; • aux compteurs etalons de reference; • aux interfaces de donnees avec lelement indicateur du compteur; • aux embases ou batis correspondants utilises pour linstallation des equipements de comptage de l