Abstract: The new version of the national standard GB/T 15576—2020《Low-voltage reactive power

compensation assemblies》was released on November 19，2020，and has been implemented on June 1，2021，replacing the old standard. Through comparative analysis of the content of the new and old standards and key tests，the test methods of the new standard and the differences between the new and old standards were introduced. Through the difference analysis of key tests，and based on the new standard combined with the typical test samples for case analysis，the test conclusions were given. At the same time，optimization points were put forward for the test items such as integrated low-voltage reactive power compensation function verification，inrush current test，noise test，etc.，which lays the foundation for the application of new standard test methods in the future，and provides an important reference for the subsequent version change test.

      Key words: standard version change；low-voltage reactive power compensation assemblies；key tests；function

verification of integrated low-voltage reactive power compensation assemblies；inrush current test；noise test