Based on SIEMENS S120 and ABB-ACS800 frequency converters, BOMAY has developed and manufactured VFD control system for 750HP-6000HP drilling rigs by adopting Common DC Bus Control System,which has the features of high timing performance, excellent integration level,capacity of overload and anti-jamming,thus it is more reliable in operation and easier in maintenance.

Power control system in desert              System commissioning         ZJ70DB electric control system

DC DRIVE SYSTEM FOR 4000M-9000M DRILLING RIGS

By adopting self-developed and introduced technology from M&I,  analog and full digital DC drive SCR control system for drilling rig (1000HP—3000HP) was developed and manufactured.

 Full digital SCR system               

2000HP SCR drive system

DQ40DB—DQ90DB TOP DRIVE VFD SYSTEM

Top drive drilling system improved the traditional driven method of rotary table.It adopts AC variable frequency drive system, with excellent operation performance and higher reliability.

Top drive drilling system                    VFD units