What is EN 61000-3-2 harmonic ?

Harmonic currents are electronic distortions or variations of the fundamental current waveform. These harmonics can cause serious issues in power systems, such as voltage distortion, increased losses in the power grid, and overall reduced power quality. The increasing use of non-linear loads, such as computers, electronic devices, and energy-efficient lighting, has led to a significant increase in harmonic distortion. The EN 61000-3-2 standard aims to regulate and limit these harmonics to ensure the smooth functioning of the electrical power system and prevent adverse effects on other connected equipment and the grid itself.

Compliance and testing are critical aspects of EN 61000-3-2 harmonic. This standard defines the maximum permissible levels of harmonic currents in the frequency range from 0 Hz (DC) up to and including the 2 kHz, which is at the limit between the electrical power quality and electromagnetic compatibility fields. The standard provides a framework for manufacturers to ensure their equipment meets the necessary specifications and for utilities to implement the necessary measures to minimize the impact of harmonics on their systems.

EN 61000-3-2 harmonic is important because it helps to maintain the quality and reliability of the electrical power system. Compliance with the standard is mandatory for equipment that is connected to public low-voltage supply systems, and failure to comply can result in penalties and other consequences. Testing to the standard is also mandatory for equipment that is intended to be used in the power system, and failure to test can result in the equipment being banned from use.

In conclusion, EN 61000-3-2 harmonic is an essential standard for the regulation of harmonic currents in power systems. It helps to ensure the smooth functioning of the electrical power system, minimize adverse effects on connected equipment and the grid, and maintain the quality and reliability of the system. Compliance with the standard is mandatory for equipment that is connected to public low-voltage supply systems, and testing to the standard is also mandatory for equipment that is intended to be used in the power system.