进口电流型变频调速装置的维修点滴

Maintenance of Import Current Source Frequency Conversion Speed Regulation Equipment

介绍电流型交－直－交变频调速装置的原理、组成，维修前的准备工作，维修的程序和步田，插件板的检修及进口器件的替代等问题。

In this paper, the principle and construction of AC-DC-AC frequence conversion speed regulation equipment, preparation before maintenance, procedure and step of maintenance, test and reparation of PCB,replacement of import components are introduced.