IEC 62053-24:2020 applies only to static var-hour meters of accuracy classes 0,5S, 1S, 1, 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. This document uses a conventional definition of reactive energy where the reactive power and energy is calculated from the fundamental frequency components of the currents and voltages only. This document applies to electricity metering equipment designed to: \u2022 measure and control electrical energy on electrical networks (mains) with voltage up to 1 000 V AC; \u2022 have all functional elements, including add-on modules, enclosed in, or forming a single meter case with exception of indicating displays; \u2022 operate with integrated or detached indicating displays, or without an indicating display; \u2022 be installed in a specified matching socket or rack; \u2022 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: \u2022 meters for which the voltage line-to-neutral derived from nominal voltages exceeds 1 000 V AC; \u2022 meters intended for connection with low power instrument transformers (LPITs as defined in the IEC 61869 series) when tested without such transformers; \u2022 metering systems comprising multiple devices (except LPITs) physically remote from one another; \u2022 portable meters; \u2022 meters used in rolling stock, vehicles, ships and airplanes; \u2022 laboratory and meter test equipment; \u2022 reference standard meters; \u2022 data interfaces to the register of the meter; \u2022 matching sockets or racks used for installation of electricity metering equipment; \u2022 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\u2019s performance (tampering). This second edition cancels and replaces the first edition published in 2014 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: see Annex E<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 1 Scope <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 3 Terms and definitions 4 Standard electrical values 4.1 Voltages 4.2 Currents 4.2.1 General 4.2.2 Starting current (see Table 1) 4.2.3 Minimum current (see Table 2) 4.2.4 Maximum current Tables Table 1 \u2013 Starting current Table 2 \u2013 Minimum current <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 4.3 Frequencies 4.4 Power consumption 5 Construction requirements 6 Meter marking and documentation 7 Accuracy requirements 7.1 General test conditions 7.2 Methods of accuracy verification 7.3 Measurement uncertainty 7.4 Meter constant 7.5 Initial start-up of the meter 7.6 Test of no-load condition 7.7 Starting current test 7.8 Repeatability test 7.9 Limits of error due to variation of the current <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 7.10 Limits of error due to influence quantities Table 3 \u2013 Acceptable percentage error limits(single-phase meters and poly-phase meters with balanced loads or single-phase loads) <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Table 4 \u2013 Acceptable limits of variation in percentage error due to influence quantities <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 7.11 Time-keeping accuracy <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 8 Climatic requirements 9 The effects of external influences 10 Type test <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Annexes Annex A (informative) Comparison of acceptable percentage error limits at reference conditions for meters Figures Figure A.1 \u2013 Acceptable percentage error limits, transformer operated (S) and directly connected meters, In = 5 A, Imax = 10 A, PF = 1,0 Figure A.2 \u2013 Acceptable percentage error limits, transformer operated (S) and directly connected meters, In = 5 A, Imax = 10 A, PF = 0,5 inductive \/ 0,8 capacitive <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Annex B (informative) Geometric representation of active and reactive power Figure B.1 \u2013 Recommended geometric representation <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Figure B.2 \u2013 Alternative geometric representation <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Annex C (informative) Influence of the phase displacement of current and voltage transformers on reactive energy measurement Table C.1 \u2013 Phase displacements for current transformerconnected meters without voltage transformers andcorresponding maximum measurement errors for reactive energy Table C.2 \u2013 Phase displacements for current and voltage transformer connected meters and corresponding maximum measurement errors for reactive energy <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Annex D (informative) Treatment of harmonics and tests for harmonics D.1 Non- sinusoidal conditions and reactive power definition D.2 Tests for accuracy under non-sinusoidal conditions <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | D.3 Fifth harmonic test <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Annex E (informative) Summary of changes <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Electricity metering equipment. Particular requirements – Static meters for fundamental component reactive energy (classes 0,5S, 1S, 1, 2 and 3)<\/b><\/p>\n |