CRRC 7000 Series Variable Frequency Drive Room
CRRC 7000 series variable frequency drive room is a high-power, integrated power conversion solution tailored for 7000HP electric fracturing skid systems, delivering a phase-shifting transformer capacity of 3650 kVA, a 10 kV input voltage, and a 0~6.6 kV adjustable output voltage, featuring a 36-pulse rectification design and 4000 kVA power module capacity.Equipped with a max continuous output current of 2 × 350 A, this drive room is engineered to deliver robust, consistent power conversion under the high-load, continuous operating conditions of oilfield fracturing operations, while its skid-mounted, fully enclosed design ensures reliable operation in harsh, dusty field environments.As a mature model in the CRRC oilfield drive series, it integrates seamlessly with mainstream 7000HP electric fracturing skid systems (including those from baoshi special vehicles) and CRRC’s own CDJD903 main motors, ensuring reliable operation and compatibility with industry-standard oilfield equipment.We offer comprehensive life-cycle support for the variable frequency drive room, covering equipment supply, on-site installation and commissioning, maintenance training, spare parts provision, and ongoing technical troubleshooting services.
Advantages of CRRC 7000 Series Variable Frequency Drive Room
With a 3650 kVA phase-shifting transformer capacity and 4000 kVA power module capacity, it delivers the massive power required for 7000HP fracturing operations, ensuring stable and continuous power conversion.
The 36-pulse rectification design and 0~6.6 kV adjustable output voltage ensure low harmonic distortion and precise speed control for the main motor, optimizing energy efficiency and reducing equipment wear.
The skid-mounted, fully enclosed cabinet design provides excellent protection against dust, sand, and moisture, ensuring reliable performance in the harsh conditions of oilfield operations.
Designed to pair perfectly with CRRC’s CDJD903 main motors and Baoshi Special Vehicles’ 7000HP fracturing skids, it offers a fully integrated “drive room + motor” solution for simplified deployment and operation.
Built on CRRC’s mature drive system technology, it features high component commonality and low maintenance requirements, reducing long-term operational expenses and downtime.
Technical Specifications
| Model: | BP 10/6.6-2-7300 |
| Code: | BP04X010000 |
| Input Power Supply: | 2 circuits, 3-phase 50 Hz ±5%, 10 kV ±10% |
| Output Voltage: | 2 circuits, 0~6.6 kV |
| Max Continuous Output Current: | 2 × 350 A |
| Phase-Shifting Transformer Capacity: | 3650 kVA |
| Power Module Capacity: | 4000 kVA |
| Rectification Pulsation: | 36-pulse |
| Matching Motor Model: | CDJD903 |
| Matching Motor Rated Power: | 4420 kW |
| Matching Motor Rated Voltage: | 6600 V |
| Matching Motor Rated Current: | 450 A |
| Matching Motor Rated Speed: | 776 rpm |
- Electric-Driven Fracturing Products Series
- Product Configuration
- Performance
- System Data
- Business Models
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 | |
| ——END—— | ||||||
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 |
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 Variable Frequency Drive Room | |||
| Model | BP 10/6.6-2-7300 | Code | BP04X010000 |
| Input Power Supply | 2 circuits, 3-phase 50 Hz ±5%, 10 kV ±10% | Output Voltage | 2 circuits, 0~6.6 kV |
| Max Continuous Output Current | 2 × 350 A | Phase-Shifting Transformer Capacity | 3650 kVA |
| Power Module Capacity | 4000 kVA | Rectification Pulsation | 36-pulse |
| ——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
