Heavy‑Duty VFD Electric Driven Drilling Rig API Compliant Electric Drilling Unit for Oilfield Exploration Electric‑Driven Drilling Rig The electric‑driven drilling rig ,the winch, mud pump and rotary table / top drive adopt independent drives. It features simple transmission, easy maintenance, high reliability, user‑friendly operation, superior controllability and comfortable working conditions for drillers. Electric‑driven rigs are classified into DC drilling rig (DZ) and AC