Ｈ12压缩机同步电机集电环的改造我厂在1987年技改时新置了2台Ｈ12ＩＡ57/320型压缩机,并于1988年元月投入产运行。压缩机同步电机的集电环因长期与碳刷接触,集电环表面出现灼烧、拉毛、黑麻坑情况,严重时造成集电环与碳刷之间产生火花,并逐步形成集电环部位发热,影响电机... H12 compressor synchronous motor collector ring transformation I plant in 1987 when the technological transformation of the new set of 2 H12IA57 / 320-type compressor, and in January 1988 put into operation. Due to long-term contact with the carbon brush, the surface of the collector ring burns, raises and black manger due to the long-term contact of the collector ring of the compressor synchronous motor. In severe cases, a spark occurs between the collector ring and the carbon brush and a slip ring Parts of fever, affecting the motor ...