国产WK-10B广泛地应用于国内露天采掘矿山中,其推压电机(型号为ZDW-814,功率175 kw)运行环境恶劣,工作中变数多,始终处于较大的冲击负荷之中。从而,ZDW-814推压电机换向困难,其补偿绕组端部连接处经常发生电弧烧断的故障。 检修这类故障,必须将电机拆下送回车间内才能进行,因此,给电动挖掘机的运行和检修造成了很大的被动。如何确保ZDW-818推压电机补偿绕组可靠安全发挥作用,是提高电 Domestic WK-10B is widely used in domestic open-pit mining mines, its push motor (model ZDW-814, power 175 kw) poor operating environment, the work variable, and always in a larger impact load. Thus, ZDW-814 push motor commutation difficulties, which compensate for the winding end of the junction often arc fault failure. Maintenance of such failures, the motor must be removed back to the workshop to carry out, therefore, to the operation and maintenance of electric excavator caused a great deal of passive. How to ensure that ZDW-818 push motor compensation winding reliable and safe to play a role, is to increase electricity