SOME PROBLEMS IN NATIONAL STANDARD FOR HARMONICS IN PUBLIC SUPPLY NETWORK

A compendious introduction to some files in IEC 61000 relative to Chinese National Standard for harmonics in power network (GB/T 14549-93) is firstly outlined. The features of these files, their superiority and relationship to Chinese National Standard are presented and the main existing problems in this National Standard are pointed out. The necessity and the urgency of revising this National Standard are explained through some actual examples.