Energy Products


Drilling Rig Drive Systems

AC/VFD Drive Systems: BAC 4000

Designed to work with 3-1600 HP mud pumps and 5-1200kw diesel/gen sets, the BAC 4000 integrated drilling control system is an AC VFD control system with a maximum hook load of 6750KN. This robust system consists of a redundancy system structure based on computer control, digital vector VFD control, digital DC drive control system and net-technique system. The drawworks is controlled by a high-precision, load-balanced four-motor drive.

BAC 4000 Control System Elements

  • Drilling Console
  • Driller’s cab
  • VFD house
    • Fully Digital Generator Control Cubicle
    • AC Drive Drawworks Control System
    • AC Drive Rotary Table Control System
    • AC Drive Mud Pump Control System
    • WB-AD Automatic Feed Drilling Control System
    • Hydraulic Pressure, Pneumatic Control System
    •  Integrated Instrumentation System
    •  MCC and Power Supply System
    • Redundant PLC Integrated Control System
  • TV monitor and talkback system

BAC 4000 Features

  • Redundant control system for optimal reliability
  • Fiber optic communications to minimize potential interference
  • WB-AD-AB main/auxiliary motor auto-drilling control system for improved drilling quality
  • Precision drawworks operation provided by load-balanced, four motor drive
  • Rotary table anti-reverse and overload auto-protection
  • Integrated drilling console for simple connectivity to other drilling equipment
  • Integrated instrumentation system
  • Integrated computer-based management system