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

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	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
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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
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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
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