GB/T 17626.7-2008 Electromagnetic compatibility.Testing and measurement techniques.General guide on harmonics and interharmonics measurements and instrumentation,for power supply systems and equipment connected thereto (English Version)
This part of GB/T 17626 applies to measuring instruments for measuring spectral components up to 9 kHz superimposed on the fundamental wave of 50 Hz or 60 Hz power system. From a practical point of view, this section distinguishes between harmonics, interharmonics and other components that exceed the harmonic range up to 9kHz. This part defines the measurement device for testing the equipment item by item according to the emission limits given in the relevant standards (such as the harmonic current limit given in GB/T 17625.1); it also defines the harmonics in the actual power supply system. A device for measuring wave current and voltage. Measuring instruments for measurements above the harmonic frequency range up to 9 kHz are provisionally specified (see Appendix B).
GB/T 17626.7-2008 Referenced Document
GB 17625.1-2003 Electromagnetic compatibility limits Limits for harmonic current emissions(equipment input current≤16 A per phase
2017GB/T 17626.7-2017 Electromagnetic compatibility—Testing and measurement techniques—General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto
2008GB/T 17626.7-2008 Electromagnetic compatibility.Testing and measurement techniques.General guide on harmonics and interharmonics measurements and instrumentation,for power supply systems and equipment connected thereto
1998GB/T 17626.7-1998 Electromagnetic compatibility--Testing and measurement techniques--General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto