CRRC 7000 Series Skid Motor
CRRC 7000 series skid motor is a high-power, heavy-duty drive solution tailored for 7000HP electric fracturing skid systems, delivering a rated output power of 4420 kW, a 6600 V rated voltage, and a 776 rpm rated speed, featuring an H-class insulation system and 97% rated efficiency.Equipped with a 450 A rated current capacity, this motor is engineered to deliver robust, consistent performance under the high-load, continuous operating conditions of oilfield fracturing operations, while its optimized thermal design ensures reliable operation in harsh, dusty field environments.As a mature model in the CRRC oilfield motor series, it integrates seamlessly with mainstream 7000HP electric fracturing skid systems, ensuring reliable operation and compatibility with industry-standard oilfield equipment.We offer comprehensive life-cycle support for the Motor, covering equipment supply, on-site installation and commissioning, maintenance training, spare parts provision, and ongoing technical troubleshooting services.
Advantages of CRRC 7000 Series Skid Motor
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With a rated power of 4420 kW and 97% efficiency, it delivers the massive power required for 7000HP fracturing operations while minimizing energy loss and operational costs.
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The H-class insulation system and rugged design ensure stable performance in the temperature fluctuations, dust, and vibration of oilfield environments, reducing the risk of downtime.
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The 776 rpm rated speed and high torque output are precisely matched to the demands of fracturing pumps, delivering consistent power for continuous high-pressure operations.
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Designed with a 6600 V rated voltage that complies with mainstream oilfield power specifications, it integrates seamlessly with existing skid systems and power distribution infrastructure.
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Built on CRRC’s mature heavy-duty motor technology, it features high part commonality and low maintenance requirements, simplifying inspections and reducing long-term operational expenses.
Technical Specifications
| Motor Model: | CDJD903 |
| Rated Power: | 4420 kW |
| Rated Voltage: | 6600 V |
| Rated Current: | 450 A |
| Rated Speed: | 776 rpm |
| Insulation Grade: | H |
| Rated Efficiency: | 97% |
| Drive Room Model: | BP 10/6.6-2-7300 |
| Drive Room Output Voltage: | 2 circuits, 0~6.6 kV |
| Max Continuous Output Current: | 2 × 350 A |
| Phase-Shifting Transformer Capacity: | 3650 kVA |
| Drive Room Power Module Capacity: | 4000 kVA |
| Drive Room Rectification Pulsation: | 36-pulse |
- Electric-Driven Fracturing Products Series
- Product Configuration
- Performance
- System Data
- Business Models
Product Model |
Motor Model |
Rated Power |
Rated Voltage |
Rated Current |
Rated Speed |
|
| 3000 series skid motor | CDJD902 | 2000 kW | 3300 V | 402 A | 500 rpm | |
| 5000 series skid motor | CDJD904 | 3155 kW | 6600 V | 320 A | 865 rpm | |
| 7000 series skid motor | CDJD903 | 4420 kW | 6600 V | 450 A | 776 rpm | |
| ——END—— | ||||||
Product Model |
Model |
Output Voltage |
Max Continuous Output Current |
Phase-Shifting Transformer Capacity |
Rectification Pulsation |
| 5000 Series Variable Frequency Drive Room | BP 10/6.6-2-7300 | 2 circuits, 0~6.6 kV | 2 × 350 A | 3650 kVA | 36-pulse |
| 5000 Series Reinforced Variable Frequency Drive Room | BP 10/6-2-8000 / BP 10/6.6-2-8000 | 2 circuits, 0~6 kV / 2 circuits, 0~6.6 kV | 2 × 372 A / 2 × 380 A | 4000 kVA | 30-pulse / 36-pulse |
| 7000 Series Variable Frequency Drive Room | BP 10/6.6-2-7300 | 2 circuits, 0~6.6 kV | 2 × 350 A | 3650 kVA | 36-pulse |
Product Model |
Voltage |
Function |
| 10kV Distribution Room | 10kV | Provides power supply for electrically driven fracturing skids |
| 35kV Distribution Room | 35kV | Provides power supply for electrically driven fracturing skids |
| ——END—— | ||
General Infomation of CRRC 7000 Series Skid Motor |
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| Model | CDJD903(For 3155kW 865mm Bogie) | Code | CDJD903-000-000 |
| Rated Power | 4420 kW | Rated Voltage | 4500 V |
| Rated Current | 650 A | Rated Speed | 776 rpm |
| Rated Torque | 54400 N·m | Weight | 11 t |
| ——END—— | |||
CRRC has established a system integration R&D department, possessing the capability to develop and design a complete power system from grid engineering to motor drive. It also holds a Level IV license for the installation (repair, testing) of power facilities, and has the capability to provide installation, maintenance, and testing services for power facilities with voltage levels below 35kV.
Chengdu CRRC Electric Motor Oil-to-Electric Conversion Monitoring System (Historical Curve Chart)
No. |
Variable Name |
Variable Value |
Description |
| 1 | Motor 1 Current | 527.70 A | Motor 1 Current |
| 2 | Motor 1 Speed | 515.00 rpm | Motor 1 Speed |
| 3 | Motor 1 Power | 375.00 kW | Motor 1 Power |
| 4 | Motor 1 Torque | 4.30% | Motor 1 Torque |
| 5 | Motor 1 Voltage | 598.00 V | Motor 1 Voltage |
| 6 | Motor 1 Operation | (Green dot: Running) | Motor 1 Operation |
| 7 | Motor 1 Temperature | 51.2 ℃ | Motor 1 Temperature |
| 8 | Inverter 1 Temperature | 38.80 ℃ | Inverter 1 Temperature |
| 9 | Inverter 1 DC Voltage | 806.6 V | Inverter 1 DC Voltage |
| ——END—— | |||
Electric Fracturing Services
2.1 Equipment Leasing Model
Service Content: Electric fracturing equipment, power distribution equipment, and personnel
Settlement Model: Electric fracturing operation volume × Settlement unit price
Application Case:
Client: Zhongyuan Downhole
Settlement Unit Price: See the unit price table on the right
Well Location: Zu203H4 platform
Work Volume: 152 segments
Settlement Amount: 29.72 million RMB
No. |
Item Content |
Qty. |
Unit |
Unit Price (RMB) |
| 1 | 5000HP Electric Fracturing Skid (Fracturing Construction) | 1 | Set/Unit | 10359.6 |
| 2 | 6000HP Electric Fracturing Skid (Fracturing Construction) | 1 | Set/Unit | 12440.25 |
| 3 | 7000HP Electric Fracturing Skid (Fracturing Construction) | 1 | Set/Unit | 14513.14 |
| 4 | 130BPM Electric Sand Blending Skid | 1 | Set/Unit | 6382.6 |
| 5 | Electric Liquid Supply Pump Skid | 1 | Set/Unit | 696.654 |
| 6 | Pumping Plug | 1 | Piece (Plug Quantity) | 1658.7 |
| 7 | Auxiliary Drill Plug | 1 | Piece | 3732.07 |
| 8 | Auxiliary Flushing | 1 | m³ (Liquid Volume) | 38.7 |
2.2 Full-site Electric Fracturing Services
Service Content: Electric fracturing equipment, power distribution equipment, and personnel
Settlement Model: Electric fracturing operation volume × Settlement unit price
Application Case:
Client: Honghua Electric
Settlement Unit Price: See the unit price table on the right
Well Location: Zu203H2 platform
Work Volume: 35 segments
Settlement Amount: 3.12 million RMB
No. |
Name |
Unit |
Unit Price (Ex-Tax, RMB) |
Remarks |
| 1 | Electric Fracturing Pump Skid | RMB/m³ | 75.68 | – |
| 2 | Electric Sand Blending Skid | RMB/m³ | 3.42 | 130BPM |
| 3 | Electric Instrument Skid | RMB/m³ | 0.85 | – |
| 4 | Pumping Plug, Flushing & Drill Plug | RMB/m³ | 66.5 | – |
| 5 | Liquid Tank, Sand Tank, Acid Tank & 2nd-Stage Water Supply | RMB/Section | 23000.00 | – |
| 6 | Combined Conference Room & Tool Room | RMB/Section | 1425.00 | – |
| 7 | Site Standardization & Etc. | / | 9500.00 | – |
| 8 | Pump Operator | RMB/Person/Month | 11875.00 | – |
2.3 Fracturing Operation Construction Services
Service Content: Provision of electrically driven fracturing equipment, power distribution equipment, energy costs, and personnel.Settlement Method: Quantity of electrically driven fracturing operations × Unit priceApplication Case:
Client: Anton Oilfield
Unit Price: See the unit price table on the right
Well Location: From 205H1 platform
Currently undergoing construction preparation.
No. |
Name |
Unit |
Service Unit Price (RMB) |
| 1 | 130BPM Electric Sand Blending Skid | RMB/Set/Unit | 6382.00 |
| 2 | Instrument Skid | RMB/Set/Unit | 3300.00 |
| 3 | Combined Command Center | RMB/Set/Unit | 700.00 |
| 4 | Liquid Tank | RMB/Section | 14211.00 |
| 5 | Acid Tank | RMB/Section | 300.00 |
| 6 | Fuel Filling Skid | RMB/Set/Unit | 50.00 |
| 7 | Wellhead Platform & High-Pressure Baffle | RMB/Section | 57.00 |
2.4 Product Sales
Service Content: Sales of electric motors for fracturing equipment and frequency converter rooms for fracturing systems.
Settlement Method: Quantity delivered × Unit price
Application Case:
Client: Gemstone Special Vehicles
Unit price and total price are shown in the table on the right.
Material Name |
Spec. & Model |
Unit |
Qty. |
Unit Price (RMB) |
Total Price (RMB) |
| Electric Motor | 3155kW/6kV | Unit | 14 | 670000 | 9380000 |
| Electric Motor | 3730kW/6.6kV Type | Unit | 18 | 780000 | 14040000 |
| Fracturing System VFD Room | P3700 | Unit | 6 | 7537920 | 45227520 |
Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.
Engine Sale Manual
Installation Drawing
Installation Manual
Operation Manual
Parts Catalogue
