CRRC 4.2MW Double-fed Wind Turbine

CRRC 4.2MW doubly-fed wind turbine is a high-power, high-efficiency generation solution, delivering a rated output power of 4200 kW, a rated voltage of 1140 V, and a rated rotating speed of 1720 rpm, paired with an H-class insulation system.
Equipped with a 97% rated efficiency and a rated current of 637 A, this turbine is engineered to capture and convert wind energy with exceptional efficiency, while maintaining stable performance in the variable conditions of wind farms.
As a mature doubly-fed design, 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 4.2MW 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 4.2MW Double-fed Wind Turbine

The 4.2MW doubly-fed wind turbine utilizes mature doubly-fed wind turbine technology, achieving a rated efficiency of 97%, exceeding the industry average, while providing a rated power of 4200 kW to maximize wind energy utilization and project profitability.
Its 1140 V rated 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 H class insulation system withstands extreme temperature swings and harsh outdoor environments, while the 637 A rated current ensures stable load-bearing capacity, minimizing the risk of overheating or downtime.
As a mature doubly-fed model, it leverages well-established converter technology with high part commonality, resulting in lower operation and maintenance costs and easier access to spare parts for simplified upkeep.
The 1720 rpm rated speed is matched to the 4.2 MW power output, ensuring consistent, high-performance energy conversion across varying wind speeds, making it ideal for large-scale wind farm deployments.

Technical Specifications

Motor Model:	FYKS21
Rated Power:	4200-4300 kW
Rated Frequency:	50 Hz
Ambient Temperature:	-30℃ ~ +45℃
Rated Current:	637 A
Insulation Class:	H
Rated Speed:	1720-1780 rpm
Rated Voltage:	1140 V
Manufacturer:	CRRC
Winding Connection:	△/Y
Duty Type:	S1
Number of Phases:	3
Mounting Arrangement:	IMB3
Cooling Method:	IC2X

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 4.2MW Double-fed Wind Turbine
Motor Model	FYKS21	Rated Power	4200-4300 kW
Rated Frequency	50 Hz	Ambient Temperature	-30℃ ~ +45℃
Rated Current	637 A	Insulation Class	H
Rated Speed	1720-1780 rpm	Rated Voltage	1140 V
Manufacturer	CRRC	Winding Connection	△/Y
Duty Type	S1	Number of Phases	3
Mounting Arrangement	IMB3	Cooling Method	IC2X
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