摘要
神东公司引进美国久益公司的井下采煤机,电控系统非常先进,牵引控制已由可控硅控制发展到变频牵引。变频器牵引性能虽好,但维修却很困难,根据几年的维修经验,结合变频器的特点,对其故障诊断做简要分析。
Traction by frequency converter has excellent performance, but it is very difficulty in maintenance. The paper analyzes the fault diagnosis of shearers frequency converter based on its principle and characteristics.
出处
《陕西煤炭》
2009年第1期95-96,共2页
Shaanxi Coal
关键词
变频器
故障
测试
诊断
VFD
testing
diagnosis
resistance
diode
current
voltage
