论文部分内容阅读
1引言DF7G型机车是南车青岛四方机车车辆有限公司在汲取NJ1型机车经验基础上,研制、生产的交流传动内燃调车机车,于2003年试制成功批量生产,现广泛装备于路内各机务段。机车传动采用
1 INTRODUCTION DF7G locomotive is an AC drive shunting shunting locomotive developed and produced by CSR Sifang Locomotive Co., Ltd. based on the experience of NJ1 locomotive. It was successfully trial-produced in 2003 and is now widely equipped in various locomotive depots in the road . Locomotive drive using