AS/NZS 61000.4.14:2012 PDF – Electromagnetic compatibility (EMC) Part 4.14: Testing and measurement techniques—Voltage fluctuation immunity test for equipment with input current not exceeding 16 A per phase

AS/NZS 61000.4.14:2012 PDF – Electromagnetic compatibility (EMC) Part 4.14: Testing and measurement techniques—Voltage fluctuation immunity test for equipment with input current not exceeding 16 A per phase
1 Scope
This part of IEC 61 000 is a basic electromagnetic compatibility (EMC) publication. It considers immunity tests for electrical and/or electronic equipment in their electromagnetic environment. Only conducted phenomena are considered, including immunity tests for equipment connected to public and industrial power supply networks. This part aims to establish a reference for evaluating the immunity of electric and electronic equipment when subjected to positive and negative low amplitude voltage fluctuations. The voltage fluctuations considered by this standard do not include flicker, which is a physiological phenomenon due to lighting luminance fluctuations. This standard applies to electrical and/or electronic equipment that have a rated input current up to 1 6 A per phase. It does not apply to electrical and/or electronic equipment connected to d.c. or a.c. 400 Hz distribution networks. Tests concerning these networks will be covered by other IEC standards. The immunity test levels required for a specific electromagnetic environment, together with the performance criteria, are indicated in the product, product family or generic standards as applicable. However, most product groups do not have a history of being susceptible to voltage fluctuations. Consequently, testing for these phenomena is often not required.
6.3 Verification of the test generator
Test generators with different output power capabilities may be used. The test generator shall be verified that it complies with the characteristics and specifications listed in Table 2. Performance of the test generator shall be verified with a resistive load drawing an r.m.s. current of no more than the output capability of the generator. For example, a 230 V/1 6 A generator shall be verified with a 1 4,3 Ω load. In addition, the generator’s output current capability shall be verified as being able to provide a crest factor of at least 3 when U n is applied to a single phase load drawing an r.m.s. current of no more than the output capability of the generator. Each output phase of the generator shall be verified in turn. An example of a suitable 230 V/1 6 A verification load is given in Figure 4.
7 Test set-up
Figure 3 shows the test configuration for mains supply simulation.
Waveform generators and power amplifiers may be used.
Tests on three-phase EUT are carried out using three synchronised generators.

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