Electric Driving System for Oil Drilling Rig
The electric drive system includes high voltage incoming cable cabinet, power transformer, converter, 400V switch cabinet, 600V switch cabinet, PLC cabinet, remote driller console etc., with output power of 2800 kW, 21000 kW and 21200 kW
Main components
| No. |
Description |
Technical specification |
Qty. |
Unit |
| 1 |
VFD cabin |
High voltage incoming cable cabinet |
6/10kV,With measurement and protection |
1 |
set |
| 2 |
Transformer |
3150kVA,10/0.60/0.40kV, load voltage regulation |
1 |
pc |
| 3 |
600V low voltage cabinet |
Power supply by converter |
1 |
set |
| 4 |
400V MCC cabinet |
Power supply for auxiliary equipment and House |
1 |
set |
| 5 |
Converter |
600V/800~1200kW |
2 |
pc |
| 6 |
Brake unit |
Brake protection, with electrical resistance |
2 |
set |
| 7 |
PLC cabinet |
Siemens 1200 or equivalent brand |
1 |
set |
| 8 |
SVG |
Filter, reactive power compensation, 900kvar |
1 |
set |
| 9 |
Cabin |
9000mm(L)×3000mm(W)×3000mm(H) |
1 |
set |
| 10 |
AC motor |
600V/1200kW/1000rpm |
2 |
pc |
| 11 |
Driller console |
Stainless steel, operating hand wheel, remote module |
1 |
set |
Configuration list
| Type |
40LDB |
50LDB |
70LDB |
| Max. Rate voltage |
12kW |
| Rated voltage |
10(6)kV |
| Dry type transformer |
2000 -10/0.6/0.4 |
2500 - 10/0.6/0.4 |
3150 - 10/0.6/0.4 |
| Capacity of main converter |
2000kVA |
2500kVA |
3150kVA |
| Load voltage regulation range |
9 notches,10×(-6×2.5%~+2×2.5%)/0.6kW |
| Insulation class |
H class |
| Compensation and harmonic suppression |
Multipulse wave rectification + Small-capacity compensation device |
| Power of driving system |
2×800kW |
2×1000kW |
2×1200kW |
| Number of adapted motors |
2pcs |
2pcs |
2pcs |
| Input voltage |
600V |
600V |
600V |
| Rated power of the motor |
2×800kW |
2×1000kW |
2×1200kW |
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