两起提升机直流调速系统故障分析

The Analysis About two Faults in Dc-Timing-System of Hoist

本文通过对两起提升机直流调速系统故障的分析，阐述了测速发电机日常维护的重要性，并对如何维护提出建议。

The article analyzes two faults in DC-timing-system of hoist,presents the importance of routine maintenance on measure of speed dynamo,and puts forward proposals about maintenance.