BF-H Series 5kW Vertical Axis Wind Turbine
Our BF-H series wind power generating system features advanced vertical axis technology with magnetic suspension structure, delivering exceptional wind energy efficiency and reliable performance for residential and small business applications.
Key Features
- High wind energy coefficient with low startup wind speed (3.2m/s)
- Superior anti-wind capability and stable operation
- Noise-free performance with maintenance-free design
- Advanced anti-corrosion treatment and sealing for long service life
- Captures wind from any direction without yaw mechanism
- Ideal for urban and suburban environments with turbulent wind flows
Technical Specifications
| Rated Power |
5kW |
| Rated Voltage |
3000V |
| Rotor diameter (m) |
4 |
| Height of blade (m) |
3.6 |
| Material of blades and numbers |
Glass Fiber Reinforced Plastic/5 |
| Rated rotor speed |
150 r/min |
| Speed regulation method |
Electromagnetic control |
| Wind energy utilized coefficient |
30%-40% |
| Range of working temperature |
-45℃ - 60℃ |
| Top weight (kg) |
485 |
| Start up wind speed (m/s) |
3.2 |
| Sweep wind area (㎡) |
5.84 |
| Survival wind speed (m/s) |
50 |
| Rated wind speed (m/s) |
11 |
| Tower type |
Guy cabled tower |
| Service life |
20-25 years |
Generator Body
Features high-grade Neodymium Iron Boron permanent magnets, each tested for magnetic flux by authorized institutions. Engineered for low starting torque while maintaining high generating efficiency through optimized internal structure.
Blade Specifications
Streamline shape with 3 reinforced fiber plastic blades. Manufactured using unidirectional fiber fabric and epoxy resin molds with inner foam core construction. Designed for low noise operation, excellent balance, and superior fatigue resistance.
Wheel Hub & Connectors
Precision-made steel wheel hub connects blades to generator. Blades connectors constructed from Q235 plate with anti-corrosion surface treatment for durable performance.
Tower Options
Available in Q235 guy wire tower with anti-corrosion painting or free stand tower with hot dip galvanized plastic spraying for various installation requirements.
Off-grid Controller
Wind-solar hybrid controller which rectifies AC current generated by wind generator into DC current and charges the battery bank. Unload function activates when strong wind produces excess current. The controller brakes when batteries reach full capacity (125% voltage) and resumes charging when voltage reduces to 108%. Includes manual brake button for emergency stops.
5kW On-Grid Controller Specifications
| Power of the equipped wind turbine |
5kW |
| Operating mode |
Continuous |
| Function |
Commutation, control |
| Operating environment |
Temperature -10～40℃, humidity≤80% |
| PWM unloading voltage (DCV) |
≥360V |
| Brake voltage (DCV) |
410±5V |
| Stop delay time (min) |
10-20 minutes |
| Low voltage indicator (V) |
≤200V |
| PWM unloading fuse (A) |
6A |
| DC output fuse (A) |
10A |
Off-grid Inverter
Pure sine wave output capable of driving any household appliances. Features integrated circuit design with minimal wiring connections. Utilizes microprocessor technology for enhanced system integration. Includes comprehensive protection systems with high efficiency transformer design and LCD operation status display.
5kW Off-Grid Inverter Specifications
| Over Voltage Recovery Point |
297VDC |
| Under Voltage Point |
189VDC |
| Under Voltage Recovery Point |
216VDC |
| No Load Loss |
0.12A |
| Display Parameter |
Battery Voltage, Output Voltage, State Parameter |
| Output Frequency |
50/60 Hz±0.05Hz |
| Dielectric Strength |
500VAC, one minute |
| Protection Type |
Battery over voltage protection, Battery under voltage protection, Battery reverse-connect protection, Output over load protection, Output short circuit protection, Over temperature protection |
| Operation Ambient Temperature |
-20～50℃ |
| Operation Ambient Humidity |
0~90%, no condensing |
Additional Technical Specifications
- Generator Type: Permanent magnetic synchronous style
- Surface Treatment: Multi-layer painting including base coat (2 layers), anti-corrosion paint, and surface finish
- Complete System Includes: Base flange, guy wires, wire tighteners, ground anchors, nuts, screws, bolts, and cables
- Off-Grid System Requirements: 4 x 12V 100AH batteries (not included in base price)
- Certifications: CE product certificate and ISO factory report
Q&A to Vertical Wind Turbines:
Basics & Working Principle**
1. What is a Vertical Axis Wind Turbine (VAWT)? How is it different from a Horizontal Axis Wind Turbine (HAWT)?
A Vertical Axis Wind Turbine has its rotor shaft arranged vertically, with blades rotating around a vertical axis. Key differences from HAWTs include:
- Omni-directional**: Does not need to face the wind; captures wind from any direction.
- Low noise & low RPM**: More suitable for residential or urban environments.
- Easier maintenance**: Key components (generator, gearbox) are typically near ground level.
- Generally lower efficiency** and higher cut-in wind speed compared to HAWTs.
2. Where are VAWTs commonly used?
- Rooftops or balconies in urban buildings
- Distributed power for remote areas (farms, telecom base stations)
- Hybrid renewable systems (e.g., wind-solar combo)
- Educational or research demonstration setups
