What is IEC 62053 22?
This part is a standard for type testing electricity meters. It covers the particular requirements for meters, being used indoors. It does not deal with special implementations (such as metering-part and/or displays in separate housings). This standard is intended to be used in conjunction with IEC 62052-11.
What IEC 62053?
IEC 62053-21:2020 applies only to static watt-hour meters of accuracy classes 0,5, 1 and 2 for the measurement of alternating current electrical active energy in 50 Hz or 60 Hz networks and it applies to their type tests only.
What IEC 62052?
This part of IEC 62052 covers type tests for electricity metering equipment for indoor and outdoor application and applies to newly manufactured equipment designed to measure the electrical energy on 50 Hz or 60 Hz networks, with a voltage up to 600 V.
Is standard for energy meter?
IEC 62052-11 specifies general requirements and tests common to all meter types. It covers mechanical, climatic, electrical, and EMC aspects, to ensure that meters are suitable for the application, robust and safe. It replaces the general requirements and tests of earlier standards with a new, harmonised set.
What is accuracy class of energy meters?
High measuring accuracy The very high 0.2s accuracy class guarantees maximum metering, even with low loads. An 0.2s accuracy class means that the measurement has an error rate of 0.2% over a range of 20 to 120% of the nominal current (In) and at a specific accuracy above 1% of In.
What IEC 61869?
IEC 61869-11:2017 is a product standard and covers only additional requirements for low-power passive voltage transformers (passive LPVT). This document covers low-power passive voltage transformers used for measurement or protection and low-power passive voltage transformers used for both measurement and protection.
Is 16444 a smart meter?
Type Tests & Test Certificates Smart meter shall be type tested for all the tests as per IS: 16444 Part 1 (latest version) in a third party independent lab. The number of sampling for testing of meters and criteria for conformity would be as per IS 16444 Part 1 (as amended up to date).
What is MD in energy meter?
Maximum demand (MD) is the highest level of electricity demand recorded by TNB meter during a 30-minute interval in a month. The amount charged to a user is based on the recorded MD in kilowatt (kW) multiplied by the respective MD rate.
Is 15959 a standard?
Now for Indian power sector “IEC62056 Electricity metering – Data exchange for meter reading, tariff and load control” is adopted for implementation in meters as the open protocol for meter data exchange. This series of IEC standards are supported by the Indian Companion Specification as IS 15959.
What is 0.5 S Class CT?
Class 0.5 means that the accuracy is 0.5% of the reading under full load and unity power factor, similar to 0.5% FS above, yet sets a standard for accuracy under lower (typical) loads and different power factor. Table 1 shows the levels of Class 0.5, according to IEC 62053-11.
Which standard has highest accuracy?
Electronic stopwatch, stop clock, pendulum clock and hour glass are the instruments used for measuring the time. Among the following, electronic stopwatch has the highest level of accuracy whereas hourglass has the lowest level of accuracy in measuring time.