SCR control system
SCR systems for drilling rigs with drilling depths from 4,000 to 9,000 meters are produced with Hande's own research and development. The system includes power management, an SCR control unit, a driller's console, an electromagnetic brake control set, and the MCC.
- SCR
- DC
Last reviewed 2026-10-27 (Asia/Shanghai)
System composition
The system includes the power management system, an SCR control unit, a driller's console, an electromagnetic brake control set, and the MCC.
The main equipment of the diesel-generator management system is installed in the generator cabinet. The catalog describes that cabinet as easy to operate, reliable, and easy to maintain.
System features
- Redundancy
- Strong overload capacity
- High integration
- Strong anti-interference ability and high reliability
- Easy operation and maintenance
Modules named in the catalog
The ROSS HILL 1400 AC control module is the core component for diesel-generator control. The catalog says it can be used for the CAT3512A and 3512B series or other brands of diesel engine. The printed operating temperature range is −30°C to 50°C. The active voltage regulation rate is less than 1%, the reactive voltage regulation rate is 3%, and the frequency stability regulation rate is less than 1%. AC components are interchangeable. Named protections are over-frequency, under-voltage, overvoltage, reverse power, and pulse loss.
The DC module in the same ROSS HILL 1400 system controls the SCR conduction angle. It turns a constant-voltage, constant-frequency AC supply into a continuously adjustable DC supply for stepless speed and torque control of the drawworks, mud pumps, rotary table, or top drive. The DC control module is described as the core of DC-motor speed and torque control, including load sharing between two motors on one shaft. Speed regulators for the drilling functions are interlocked with the assigned contactors. The over-current threshold for the rotary table is printed as 150% of the maximum current limit.
These module names describe parts inside the system. The brand on this site remains Hande.
Technical parameters
| Technical parameter | 40D | 50D | 70D | 90D |
|---|---|---|---|---|
| Grid power input capacity | 2500 kVA | 3200 kVA | 4000 kVA | 5000 kVA |
| Generator input capacity | 1715 kVA × 3 | 1715 kVA × 3 | 1715 kVA × 4 | 1715 kVA × 5 |
| Auxiliary generator input capacity | 400 kW | 400 kW × 2 | 400 kW × 2 | 400 kW × 2 |
| Power transformer capacity | 1000 kVA | 1250 kVA | 1250 kVA | 1600 kVA |
| Output voltage | 600 V and 400 V and 220 V | 600 V and 400 V and 220 V | 600 V and 400 V and 220 V | 600 V and 400 V and 220 V |
| MCC cabinet | 4 sets | 5 sets | 6 sets | 7 sets |
| Control system | PLC + emergency | PLC + emergency | PLC + emergency | PLC + emergency |
| IPC system | Available | Available | Available | Available |
Questions buyers ask
- What is the Hande SCR control system?
- It is the DC control system for drilling rigs from 4,000 to 9,000 meters. It includes power management, an SCR control unit, a driller's console, electromagnetic brake control, and the MCC.
- Which configurations does the catalog print?
- The technical parameter table lists 40D, 50D, 70D, and 90D, with grid input from 2,500 kVA to 5,000 kVA and generator input from three to five 1,715 kVA sets.
- What modules does the catalog name inside the system?
- The ROSS HILL 1400 AC module is named for diesel-generator control, including CAT3512A and 3512B or other engines. That module flyer is ROSS HILL 1400 control. The DC module is named for SCR firing and for speed and torque of the drawworks, mud pumps, rotary table, or top drive. The same rig chain continues in VFD control and drilling motors.