CRRC 6.25MW Double-fed Wind Turbine

CRRC 6.25MW doubly-fed wind turbine is a high-capacity, high-efficiency power generation solution, delivering a rated output power of 6400 kW , a rated stator voltage of 1140 V, and a rated rotating speed of 1720 rpm, paired with an H-class insulation system.
Equipped with a 962 A rated rotor current and a wide speed range of 1000 to 2060 rpm, this turbine is engineered to capture and convert wind energy with exceptional efficiency across varying wind speeds, while maintaining stable performance in the variable conditions of wind farms.
As a mature doubly-fed design with △/Y winding connection, it seamlessly integrates with industry-standard wind power converter technologies, ensuring reliable grid compatibility and long-term operational stability.
We provide full life-cycle support for the 6.25MW doubly-fed wind turbine, including equipment supply, on-site installation and commissioning, maintenance training, spare parts provision, and ongoing technical troubleshooting services.

Advantages of CRRC 6.25MW Double-fed Wind Turbine

Adopting proven doubly-fed wind turbine technology, the 6.25MW doubly-fed wind turbine achieves exceptional energy conversion efficiency, delivering a rated power of 6400 kW to maximize wind energy utilization and project returns for large-scale wind farms.
Its 1140 V rated stator voltage is optimized for large-capacity wind farms, reducing transmission losses and enabling direct compatibility with high-voltage grid infrastructure, thus lowering the cost of supporting electrical equipment.
The 1000 to 2060 rpm speed range allows the turbine to adapt to fluctuating wind speeds, while the H-class insulation system withstands extreme temperature swings (-30 to 45°C) and harsh outdoor environments, minimizing the risk of overheating or downtime.
As a mature doubly-fed model, it leverages well-established converter technology with △/Y winding connection, resulting in high part commonality, lower operation and maintenance costs, and easier access to spare parts for simplified upkeep.
With a 962 A rated rotor current and IC26 cooling system, the turbine ensures stable load-bearing capacity and heat dissipation, making it ideal for continuous, high-output operation in large-scale wind farm deployments.

Technical Specifications

Motor Model:	FYKK25
Rated Power:	6400 kW
Rated Frequency:	50 Hz
Ambient Temperature:	-30℃ ~ +45℃
Rated Rotor Current:	962 A
Insulation Class:	H
Rated Speed:	1720 rpm
Rated Voltage:	1140 V
Winding Connection:	△/Y
Weight:	11500 kg
Duty Type:	S1
Number of Phases:	3
Mounting Arrangement:	IMB3
Cooling Method:	IC26

Product Model	Motor Model	Rated output power	Rated voltage	Rated rotating speed	Insulation grade
2.5MW Generator	FYKK16	2500 kW	720 V	1720 r/min	H
3.3MW Generator	FYKK21	3300 kW	690 V	1720 r/min	H
4.2MW Generator	FYKS21	4200 kW	1140 V	1720 r/min	H
6.25MW Generator	FYKK25	6400 kW	1140 V	1720 r/min	H
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General Infomation of CRRC 6.25MW Double-fed Wind Turbine
Motor Model	FYKK25	Rated Power	6400 kW
Rated Frequency	50 Hz	Ambient Temperature	-30℃ ~ +45℃
Rated Current	962 A	Insulation Class	H
Rated Speed	1720 rpm	Rated Voltage	1140 V
Winding Connection	△/Y	Weight	11500 kg
Duty Type	S1	Number of Phases	3
Mounting Arrangement	IMB3	Cooling Method	IC26
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