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BS EN IEC 62053-24:2021+A11:2021 Electricity metering equipment. Particular requirements - Static meters for fundamental component reactive energy (classes 0,5S, 1S, 1, 2 and 3), 2021
- undefined
- Blank Page
- Annex ZZ (informative)Relationship between this European standard and the essential requirements of Directive 2014/30/EU [2014 OJ L96] aimed to be covered
- English [Go to Page]
- CONTENTS
- FOREWORD
- INTRODUCTION
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Standard electrical values [Go to Page]
- 4.1 Voltages
- 4.2 Currents [Go to Page]
- 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 [Go to Page]
- Table 1 – Starting current
- Table 2 – Minimum current
- 4.3 Frequencies
- 4.4 Power consumption
- 5 Construction requirements
- 6 Meter marking and documentation
- 7 Accuracy requirements [Go to Page]
- 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
- 7.10 Limits of error due to influence quantities
- Table 3 – Acceptable percentage error limits(single-phase meters and poly-phase meters with balanced loads or single-phase loads)
- Table 4 – Acceptable limits of variation in percentage error due to influence quantities
- 7.11 Time-keeping accuracy
- 8 Climatic requirements
- 9 The effects of external influences
- 10 Type test
- Annexes [Go to Page]
- Annex A (informative) Comparison of acceptable percentage error limits at reference conditions for meters
- Figures [Go to Page]
- Figure A.1 – Acceptable percentage error limits, transformer operated (S) and directly connected meters, In = 5 A, Imax = 10 A, PF = 1,0
- Figure A.2 – Acceptable percentage error limits, transformer operated (S) and directly connected meters, In = 5 A, Imax = 10 A, PF = 0,5 inductive / 0,8 capacitive
- Annex B (informative) Geometric representation of active and reactive power
- Figure B.1 – Recommended geometric representation
- Figure B.2 – Alternative geometric representation
- Annex C (informative) Influence of the phase displacement of current and voltage transformers on reactive energy measurement
- Table C.1 – Phase displacements for current transformerconnected meters without voltage transformers andcorresponding maximum measurement errors for reactive energy
- Table C.2 – Phase displacements for current and voltage transformer connected meters and corresponding maximum measurement errors for reactive energy
- Annex D (informative) Treatment of harmonics and tests for harmonics [Go to Page]
- D.1 Non- sinusoidal conditions and reactive power definition
- D.2 Tests for accuracy under non-sinusoidal conditions
- D.3 Fifth harmonic test
- Annex E (informative) Summary of changes [Go to Page]
