... requirement of HSE.The electric drive adopts the vector VF drive system. The main electrical equipment and top drive VFD system are arranged into ... , data save, printing and management function. Moreover, the top drive operation can be handled on the touch screen of the ... height K type, 48m4Drawworks rated power3200kW(4200hp) 13Driving mode AC-DC-AC,One-by-one control 5Gear number of drawworks Two gears ...