Oil drilling rig and oil drilling electric drive automatic device are used in oil drilling system for land,sea and desert,which can connect a variety of main drive motor(DC-excited motor,DC series motor,AC asynchronous motor),many drive modes and configuration for diesel generator sets you can choose.Additionally,automatic feed-drilling functions,drawwork-position closed loop control functions,drilling-down power monitoring functions,rotary table soft torque functions,energy consumption brake replacement assisted-braking and other functions.The device meets to GB3797,JB5878,JB/T7845,SYT6725.2009,IEC and IEEE standards.Among then,some devices installed in drilling rig such as master driller’s electric control console,food switch etc.achieve explosion-proof certificate issued by China explosion-proof electrical products quality supervision and testing center.Offshore electric drive automatic devices are certified by the China Classification Society CCS and ABS certification.

“Electric drive control system of ZJ60DS desert drilling rig”belonging to the state science and technology key task was manufactured by TEDRI Co.,Ltd and won the State science and technology progress first-class prize in 1997,the technical level is in the international advanced level;the electric drive control system of SS1H-70F offshore drill rig was developed and manufactured by TEDRI Co.,Ltd in 1998 for No.2 exploration oil-drilling platform subordinate the Shanghai Sea Bureau,which filled in the domestic gaps and was appraised by Union appraisal organized by State Bureau of Machinery Industries and SINOPEC Start Petroleum Co.,Ltd,and won the Gansu science and technology progress Second-class prize,the technical level is in the international advanced level;the electric drive system of ZJ40DBS variable frequency drill rig developed and manufactured by TEDRI Co.,Ltd in 2002,was passed through the science and technology results appraisal organized by Gansu science and technology department,which filled in the domestic gaps again and won the Gansu science and technology progress First-class prize and China Mechanical Industry federation science and technology progress Second-class prize;the electric drive system of ZJ50DBS variable frequency drill rig developed and manufactured by TEDRI Co.,Ltd in 2003,was passed through the science and technology results appraisal organized by Gansu science and technology department,the technical level is in the international advanced level.

SS-type drilling rig electric automatic device

The type of device is for the DC drive system,that rectifying AC power on the AC bus into DC power with adjustable voltage through thyristor to adjust the speed of DC motor.SCR control system had been successfully applied on the electric drive oil drilling rig for several decades,because of its proven,reliable,less investment advantages,achieve good graces by users.

Main indicators

Power system

● Frequency steady-state accuracy of:≤1%

● Frequency adjustment time:≤3s

● Voltage steady accuracy:≤1%

● Voltage regulating time:≤1.5s

● Active load imbalance degree:≤5%

● Reactive load imbalance degree:≤5%

Drive system

● Output voltage:0~750V adjustable continuously

● Output current:"one for on"drive 0~1400A(1600A 90 S)

   "One for two"drive 0~23 00 A(2 60 0A 90 S)

   Connecting DC motors

● DC-excited motor(adding excitation device)

● DC series motor

   Drive modes

● DC-excited motor using“one for one"mode

● DC series motor using"one for one"or"one for two"mode