Over voltage protection, Grid cut off protection, Regulated supply output, Arrester
Manual function
Manual brake, Reset, Emergency switch
Display mode
LCD
Display content
Wind turbine voltage, current, power; Solar voltage, current, power; DC output voltage, DC output current, DC output power, total power.
PWM constant voltage
≥520dc
≥320dc
≥520dc
Wind turbine 3-phase dump load voltage
540±5Vdc
350±5Vdc
540±5Vdc
Wind turbine 3-phase dump load time-lapse
12-20 min
PWM dump load fuse
32A
50A
63A
80A
2A
3A
4A
5A
Fuse of DC output
40A
63A
80A
100A
10A
16A
Environment temperature
-30-60°C
Relative humidity
<90% No condensation
Noise (1m)
<40dB
Degree of protection
IP20(Indoor) IP65 (Outdoors)
Cooling method
Forced air cooling
Communication interface (optional)
RS485/USB/GPRS/WIFI/Ethernet
Size of the controller (mm)
580*400*240
580*400*240
650*600*240
650*600*240
510*360*240
510*360*240
510*360*240
580*400*240
Controller Weight
23Kg
25Kg
36Kg
38Kg
15Kg
17Kg
17Kg
23Kg
Dump load Size (mm)
690*450*530
690*450*530
720*500*1300
720*500*1300
410*360*120
410*360*120
400*410*250
690*450*530
Dump load Weight
35Kg
41Kg
70Kg
80Kg
7Kg
9Kg
13Kg
35Kg
Detailed Images
Customer Photos
Why Choose Us
Qingdao Greef New Energy Equipment Co., Ltd is global supplier which focus on permanent magnet generator and wind turbine system. We provide customized 500W to 5MW Permanent Magnet Generators which suitable for Wind Turbine, Hydro turbine and other renewable energy system. Our vertical wind turbines are installed all over the world which have low start wind speed, low noise and high efficiency. 50 % staff in our engineer team have 11 years' experience in the field. With strong flexibility and competitive capabilities, we can help clients to customize overall new energy system solution. The services that can be delivered include but are not limited to: overall design plan, principle drawing, 3D renderings, sample physical, bulk product delivery, quality control, and after-sales service. With a fast service system, we can assist our customers to save cost and time.
This canal flows day and night – I never thought it could make money. After Greef installed the system, it runs by itself. Every day I check my phone to see how much electricity was generated and how much I earned. I'll recover my investment in less than a year, and after that it's pure profit.
I run a small dairy farm in northern Norway, far from the power grid. A few years ago, I installed solar panels and a Deye inverter, but the solar system basically stops working in winter, and the diesel generator was costing me a fortune. This year, I added this variable-pitch wind turbine and connected it to the Deye inverter for a hybrid solar-wind system, and we haven’t had a single power outage all winter. This wind turbine starts up at low wind speeds of just 2–3 on the Beaufort scale. During blizzards, the blades automatically pitch down to slow the turbine, preventing runaway speeds, and it’s much quieter than my neighbor’s fixed-pitch model. The Deye inverter’s switching logic is smart—it prioritizes solar power when available, and automatically switches to the wind turbine when solar output drops. It’s all clearly visible on the app. Now, the diesel generator is practically idle. Wind and solar backing each other up—that’s true off-grid freedom.
“I built a small pico hydro system on the creek behind my off-grid cabin. The water head is only 3 meters and flow rate around 0.2 m³/s – too low for most generators. This axial flux coreless unit starts generating usable power at just 150 RPM. No cogging, no iron loss, and it’s silent. I’m getting 300-400W continuously, 24/7. My old induction generator would barely light an LED at that speed. Absolutely perfect for low-head hydro.”
Overall Rating
Rating Snapshot
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