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东风及东风2、3型内燃机车上的ZQFR—1350型主发电机整流子“隔片发黑”说明了电机换向不良,整流火花已逐渐升级,整流子工作表面受到了烧伤。这种故障现象的后果和ZQDR—204型牵引电动机整流子表面发生的“二黄一黑”、“二黑一黄”及ZQDR—410型牵引电动机整流子表面发生的“二黄二黑”结果是相同的,情况严重时必影响到机车正常运行。近年来,我段东风及东风2型内燃机车上的主发电机整流子隔片发黑的现象日益严重、
ZQFR-1350 main generator commutator “blackening of the septum” on the DF-2 and DF-2 diesel locomotives indicates that the motor commutation is not good, the rectifying spark has been gradually upgraded, and the working surface of the commutator has been burnt. The consequences of this failure phenomenon and the ZQDR-204 traction motor commutator surface “two yellow a black”, “two black yellow” and ZQDR-410 traction motor commutator surface “two yellow black” results Is the same, in serious cases will affect the normal operation of the locomotive. In recent years, the phenomenon of blackening of the main generator commutator septum on the section of Dongfeng and Dongfeng-2 diesel locomotives has become increasingly serious.