AS 62053.22:2018 pdf free

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AS 62053.22:2018 pdf free.Electricity metering equipment (ac)—Particular requirements Part 22: Static meters for active energy (classes 0.2 S and 0.5 S).
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62052-11 apply.
4 Standard electrical values
The values given in IEC 62052-11 apply.
5 Mechanical requirements
The requirements of IEC 62052-1 1 apply.
6 Climatic conditions
The conditions given in IEC 62052-1 1 apply.
7 Electrical requirements
In addition to the electrical requirements in IEC 62052-11, meters shall fulfil the following requirements.
7.1 Power consumption
The power consumption in the voltage and current circuits shall be determined at reference conditions given in 8.5 by any suitable method. The overall maximum error of the measurement of the power consumption shall not exceed 5 %.
The active and apparent power consumption taken at reference temperature and reference frequency, by each voltage circuit at reference voltage and by each current circuit at rated current, shall not exceed the values shown in Table 1.
7.2 Influence of short-time overcurrents
Short-time overcurrents shall not damage the meter. The meter shall perform correctly when back to its initial working condition and the variation of error at rated current and unity power factor shall not exceed 0,05 %.
The test circuit shall be practically non-inductive and the test shall be performed for polyphase meters phase-by-phase.
After the application of the short-time overcurrent with the voltage maintained at the terminals, the meter shall be allowed to return to the initial temperature with the voltage circuit(s) energized (about 1 h).
The meter shall be able to carry for 0,5 s a current equal to 20 ‘max with a relative tolerance of +0 % to —10 %.
The variation in percentage error when the meter is subjected to the test wave-form given in Figure A.2 and when it is subjected to the reference wave-form shall not exceed the limits of variation given in Table 6.
NOTE The values given in the figures are for 50 Hz only. For other frequencies the values have to be adapted accordingly.
8.2.3 Continuous magnetic induction of external origin
The continuous magnetic induction may be obtained by using the electromagnet according to Annex B, energized with a d.c. current. This magnetic field shall be applied to all accessible surfaces of the meter when it is mounted as for normal use. The value of the magneto-motive force applied shall be 1 000 At (ampere-turns).
8.3 Test of starting and no-load condition
For these tests, the conditions and the values of the influence quantities shall be as stated in 8.5 except for any changes specified below.
8.3.1 Initial start-up of the meter
The meter shall be functional within 5 s after the reference voltage is applied to the meter terminals.
8.3.2 Test of no-load condition
When the voltage is applied with no current flowing in the current circuit, the test output of the meter shall not produce more than one pulse.AS 62053.22 pdf download.

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