IEC 62053-23:2020 pdf free download – Electricity metering equipment – Particular requirements
1 scope
This part of lEC 62053 applies only to static var-hour meters of accuracy classes 2 and 3 forthe measurement of alternating current electrical reactive energy in 50 Hz or 60 Hz networksand it applies to their type tests only.
For practical reasons, this document is based on a conventional definition of reactive energyfor sinusoidal currents and voltages containing the fundamental frequency only.
NOTE 1 For other general requirements，such as safety,dependability，etc, see the relevant IEC 62052 orIEC62059 standards.
This document applies to electricity metering equipment designed to:
– measure and control electrical energy on electrical networks(mains) with voltage up to 1 0o0 v;
NOTE 2 For AC electricity meters, the voltage mentioned above is the line-to-neutral voltage derived from nominalvoltages.See lEC 62052-31:2015,Table 7.
– 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 electricalenergy.
Meters designed for operation with low power instrument transformers (LPlTs as defined in theIEC 61869 series) may be considered as compliant with this document only if such meters andtheir LPITs are tested together and meet the requirements for directly connected meters.
Meters designed for operation with low power instrument transformers (LPITs as defined in theIEC 61869 series) may be considered as compliant with this document only if such meters andtheir LPIlTs are tested together and meet the requirements for directly connected meters.
NOTE 3 Modern electricity meters typically contain additional functions such as measurement of voltage magnitude,current magnitude,power,frequency, power factor，etc.; measurement of power quality parameters; load controlfunctions; delivery, time, test, accounting, recording functions; data communication interfaces and associated datasecurity functions. The relevant standards for these functions may apply in addition to the requirements of thisdocument.However, the requirements for such functions are outside the scope of this document.
NOTE 4 Product requirements for power metering and monitoring devices (PMDs) and measurement functions suchas voltage magnitude,current magnitude, power,frequency,etc., are covered in lEC 61557-12.However, devicescompliant with IEC 61557-12 are not intended to be used as biling meters unless they are also compliant withIEC 62052-11:2020 and one or more relevant lEC 62053-xx accuracy class standards.
NOTE 5 Product requirements for power quality instruments (PQIs) are covered in lIEC 62586-1.Requirements forpower quality measurement techniques (functions) are covered in lEC 61000-4-30.Requirements for testing of thepower quality measurement functions are covered in lEC 62586-2.
NOTE 7 Nevertheless, specific tampering detection and prevention requirements, and test methods, as relevant fora particular market are subject to the agreement between the manufacturer and the purchaser.
NOTE8 Specifying requirements and test methods for fraud detection and prevention would be counterproductive,as such specifications would provide guidance for potential fraudsters.
NOTE 9 There are many types of meter tampering reported from various markets; therefore, designing meters todetect and prevent all types of tampering could lead to unjustified increase in costs of meter design, verification andvalidation.
NOTE 10 Billing systems, such as, smart metering systems, are capable of detecting rregular consumption patternsand irregular network losses which enable discovery of suspected meter tampering.