User talk:Robbyculture

What is DC braking and how to achieve it? Why DC braking is used for VFD and flux vector control AC motor? When a crane(hoist) lowering or lifting loads of 15 tonnes and up. What really happen to the kinetic energy of the load when stopping with or without load? Can DC braking system achieve this task? How does the AC motor function under these conditions? When a crane(hoist) needs to use open-loop or closed-loop configuration in VFD(variable frequency Drive) or flux vector (DTC - direct Torque control) control?