CRRC 35kV Distribution Room
CRRC 35kV distribution room is a high-voltage power distribution unit for large-scale oilfield projects, delivering a 35 kV input voltage, 600 V/3300 V output voltage, and a modular “H”/”T” type layout, featuring IP54 protection level and vacuum load switch-fuse combination devices.
Equipped with power transformers with dedicated air ducts, this distribution room is engineered to supply stable power to multiple drilling rigs and fracturing skids, while its anti-corrosion enclosure ensures reliable operation in harsh oilfield environments.
As a core power infrastructure component, it integrates seamlessly with on-site power grids and large-scale oilfield equipment.
We offer comprehensive life-cycle support for the distribution room, covering equipment supply, on-site installation and commissioning, maintenance training, spare parts provision, and ongoing technical troubleshooting services.
Advantages of CRRC 35kV Distribution Room
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The 35 kV high-voltage input design reduces transmission loss over long distances, adapting to the large coverage area of large-scale oilfield bases.
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Its modular “H”/”T” type layout offers flexible configuration options (corridor/non-corridor), adapting to different site space constraints.
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Power transformers with dedicated air ducts maintain stable operation even when the ambient temperature approaches 40°C, ensuring reliable power supply in high-temperature environments.
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The IP54 protection level and anti-corrosion enclosure resist dust, humidity, and salt spray, adapting to harsh oilfield working conditions.
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It features a complete set of safety protection functions (overcurrent, short-circuit, phase-deficient operation prevention) to ensure the safety and stability of the power distribution system.
Technical Specifications
35kV Distribution Room Description
Voltage: 35kV
The electric fracturing skid-mounted substation primarily provides power to the electric fracturing skid.
General data for matching motors and frequency converter drive rooms
| Rated Power: | 2000 – 4420 kW |
| Rated Voltage: | 3300 – 6600 V |
| Rated Current: |
320 – 450 A |
| Rated Speed: |
500 – 865 rpm |
| Insulation Grade: |
H |
| Rated Efficiency: | 96% – 97% |
| Output Voltage: | 0 – 6.6 kV (2 circuits) |
| Max Continuous Output Current: | 2 × 350 – 380 A |
| Phase-Shifting Transformer Capacity: | 3650 – 4000 kVA |
| Power Module Capacity: | 4000 kVA |
- Electric-Driven Fracturing Products Series
- Product Configuration
- Performance
- System Data
- Business Models
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—— | ||
Product Model |
Motor Model |
Rated Power |
Rated Voltage |
Rated Current |
Rated Speed |
| 3000 series skid motor | CDJD902 | 2000 kW | 3300 V | 402 A | 500 r/min |
| 5000 series skid motor | CDJD904 | 3155 kW | 6600 V | 320 A | 865 r/min |
| 7000 series skid motor | CDJD903 | 4420 kW | 6600 V | 450 A | 776 r/min |
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—— | |||||
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
