The worldwide success of the modules was accomplished by the reduction of all vital electronics for the AC and DC functions of the system to a single circuit board.

All modules of each type are interchangeable and identical for replacement in minutes. The modules are hard-wired to eliminate loose connections caused by vibration. Each module is subject to rigorous testing to eliminate any inferior components. Modules are calibrated at the factory and require no adjustments in the field. Service and troubleshooting of the system is minimized.

pct designs and packages complete AC variable frequency drive systems for the drilling industry. All AC drives convert AC to DC and then through various switching techniques invert the DC into variable voltage, variable frequency output.

The AC control system utilizes advanced digital vector technology which greatly improves the speed adjusting specification of AC motors and system power factor.

pct has been designing and building SCR drives utilizing proven technology for oil and gas applications. Each power system is manufactured to meet customer specifications and at the same time comply with the stringent requirements of the drilling industry – reliability, ease of maintenance, and simplicity. The philosophy of 100% redundancy has been incorporated throughout the system. TSC maintains a world-wide network of field service personnel and technicians that can support your operation on a 24 hour basis.

1.Instrumentation and metering

2.Engine speed and generator voltage

3.Ground fault detection system

4.Synchronizing panel

5.Analog or digital controls

The ADS utilizes the control capabilities of a PLC with an integrated HMI screen. The result is a powerful system which is both safe and easily operated.

ADS controls the drilling tool speed and location based on input from an encoder coupled to the drawworks. Input from a dead line transducer is used to control and monitor block load and weight on bit. Input from a mud pressure transducer can be used to control mud motor pressure delta as a drilling parameter.

The ADS control functions include: weight on bit, rate of penetration and mud motor pressure delta. The system includes dual limits for alarm and shut down which operate independently of the function control set points.

The PLC based BCS uses input from the drawworks encoder backed by proximeters installed in the mast to detect the position of the traveling gear and provide speed feedback and position from the traveling gear. Position information is compared to limits set via the HMI to ensure the traveling gear does not enter unsafe areas. The system includes the capability to limit block speed as well as position to further ensure safe operation. Automatic braking and manual bypass are available.

The function of the simulator is to test the static and dynamic functions of the AC and DC control modules. The process confirms that the modules will perform flawlessly as required for a drilling operation.

The Power Limit system will monitor the KW engine loading and the KVA generator loading of each engine/generator set. If any of these parameters reach their limits, the Power Limit circuit will reduce the power being delivered to the loads so that the load on each generator is held at its limit until the loads on the SCR drives are reduced (by other action) to a level below the generator limit. The percent Power Limit is indicated by a meter on the Drillers Console. Warning lamps are illuminated on the front of the Drillers Console at a load level just below the power limit.

The power control house provides the features of economical operation and maintenance, compactness, and portability. The house contains the SCR or AC drives, generater control cubicles and other associated equipment to include motor control center, drawworks dynamic brake control, transformers, and AC cooling units.

The self-supporting power control house is mounted on a three or four runner oilfield skid. Lifting eyes or a drawbar at each end of the house are provided for transportation on a trailer.

PCT has been designing and building SCR drives utilizing proven technology for oil and gas applications. Each power system is manufactured to meet customer specifications and at the same time comply with the stringent requirements of the drilling industry – reliability, ease of maintenance, and simplicity. The philosophy of 100% redundancy has been incorporated throughout the system. TSC maintains a world-wide network of field service personnel and technicians that can support your operation on a 24 hour basis.

The console is located on the drill floor and contains the control switches for the SCR assignments, rotary table torque limit control, and drawworks or rotary table reversing.

The worldwide success of the modules was accomplished by the reduction of all vital electronics for the AC and DC functions of the system to a single circuit board.

All modules of each type are interchangeable and identical for replacement in minutes. The modules are hard-wired to eliminate loose connections caused by vibration. Each module is subject to rigorous testing to eliminate any inferior components. Modules are calibrated at the factory and require no adjustments in the field. Service and troubleshooting of the system is minimized.

The worldwide success of the modules was accomplished by the reduction of all vital electronics for the AC and DC functions of the system to a single circuit board.

All modules of each type are interchangeable and identical for replacement in minutes. The modules are hard-wired to eliminate loose connections caused by vibration. Each module is subject to rigorous testing to eliminate any inferior components. Modules are calibrated at the factory and require no adjustments in the field. Service and troubleshooting of the system is minimized.