TL, TDL Series vertical synchronous motors manufactured by NTC are mainly used for driving vertical axial flow and mixed flow pumps. Motor structure is two guide bearings overhang type，thrust bearing and guide bearing in upper frame and only guide bearing in lower frame. Both upper and lower frame are all oil pool. The bearing is oil-jacked self-lubrication. Cooling mode is self-fan cooling type, half piping ventilation type or close cycle with cooler. Motor stator uses soft status winding and VPI treated technology. Motor has thermo-elements to monitor temperature, electronic tachometer and high pressure oil jacking device when needed. The excitation device currently uses micro- computer control device.
TGB Series motors are matched with penetration pumps. They can dive into water to operate. They are suitable for low lift and large flow.