微机消谐装置是放在放在PT的二次侧（所以也叫二次消谐）消除铁磁谐振的仪器。
Microcomputer harmonic elimination device is placed on the secondary side of PT (so it is also called second harmonic elimination) to eliminate ferroresonance.
它与一次消谐器的区别在于微机消谐是一个消谐仪器，具有分析、记录、打印、上传等优势，但也有只能用于室内、消谐范围窄（只能消除工频、三倍频、二分频、三分频等指定频率谐振）等缺点。
It differs from the primary harmonic eliminator in that it is a harmonic eliminator with the advantages of analysis, recording, printing and uploading, but it also has some shortcomings such as being only used indoors and having a narrow range of harmonic elimination (only eliminating specified frequency resonances such as power frequency, triple frequency, bisection frequency and triple frequency).