Slip-ringmotor can be used in conjunction with time delay relays for floor operated cranes to improve their travelling quality during start and inching.
为改善地面操作起重机的起动、点动运行性能，可选用绕线型电动机加外延时继电器控制。
2
Remove brushes and short the ring together with a copper link in case of a slipringmotor (wound rotor).
若是滑环式电动机(绕线转子)，去除电刷，和铜环连在一起使滑环短路。
3
The liquid resistance value can be altered by adding in standby raw material and is applicable for slipring electrical motor of light load, medium load and heavy load starting up.