Qingdao Greef New Energy Equipment Co., Ltd
| Payment Terms | L/C, D/A, D/P, Western Union, MoneyGram |
| Supply Ability | 100 Units |
| Delivery Time | 25DAY |
| Packaging Details | Inner Foam + Plywooden case |
| Type | Wind Power Generator,50kw to 500KW permanent magnet alternator |
| Rated power | 300w-30kw |
| Rated voltage | 12V / 24V / 48V |
| Generator type | 3 Phase AC Permanent-magnet,Three phase AC permanent magnet synchronous generator |
| Application | Electricity Generation |
| Warranty | 3 Years |
| Portection grade | IP 54 |
| Color | multicolor |
| Size | Customized Magnet Size |
| Generator material | 100% Copper wire+Nd-Fe-B |
| Generator | 3-Phase Permanent Magnet Generator AC Alternator |
| Brand Name | GREEF |
| Model Number | GDG |
| Certification | CE |
| Place of Origin | QINGDAO |
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Product Specification
| Payment Terms | L/C, D/A, D/P, Western Union, MoneyGram | Supply Ability | 100 Units |
| Delivery Time | 25DAY | Packaging Details | Inner Foam + Plywooden case |
| Type | Wind Power Generator,50kw to 500KW permanent magnet alternator | Rated power | 300w-30kw |
| Rated voltage | 12V / 24V / 48V | Generator type | 3 Phase AC Permanent-magnet,Three phase AC permanent magnet synchronous generator |
| Application | Electricity Generation | Warranty | 3 Years |
| Portection grade | IP 54 | Color | multicolor |
| Size | Customized Magnet Size | Generator material | 100% Copper wire+Nd-Fe-B |
| Generator | 3-Phase Permanent Magnet Generator AC Alternator | Brand Name | GREEF |
| Model Number | GDG | Certification | CE |
| Place of Origin | QINGDAO | ||
| High Light | 500w Coreless Permanent Magnet Generator ，20kw Coreless Permanent Magnet Generator ，20kw low rpm permanent magnet alternator | ||
GreeF company supply modified kinds of Coreless Disk Permanent Magnet Generator main model as follow:
GDG-1KW 180RPM
GDG-1KW 200RPM
GDG-2KW 120RPM
GDG-2KW 180 RPM
GDG-3KW 100RPM
GDG-3KW 160RPM
GDG-5KW 100RPM
GDG-5KW 100RPM
GDG-10KW 100RPM
They are always being used in vertical axis wind turbine, and other generator system which requests very low start torque and low RPM.
GREEF DDG series generator have following features:
Low rated rotate speed, Low start wind speed, Low weight and small size, low High efficiency
(1) Torque Patent Technology: use newest “Precise Coil” technology. No hysteresis and gear notches effect make the start torque very low <1N.M
(2) Original Structure: use disc coreless motor to take place traditional motor makes it less volume and weight.
(3) Higher Utilization: use special coreless motor technology to eliminate the use bottlenecks of lower speed wind energy.
(4) Higher Reliability: special structure make it bigger ratio of power to volume, power to weight and have long life of 8 times longer than traditional motor.
(5) Gearless, direct drive, low RPM generator.
(6) High standard, quality components for use in harsh and extreme environments for wind turbines
(7) High efficiency and Low mechanical resistance energy loss
(8) Excellent heat dissipation due to the Aluminum alloy outer frame and special internal structure.
| Model | GDG-0.5KW-200 | GDG-1KW-180 | GDG-1KW-200 | GDG-2KW-120 | GDG-2KW-180 |
| Rated Power | 0.5KW | 1KW | 1KW | 2KW | 2KW |
| Rated Rotate Speed | 200 RPM | 180RPM | 200RPM | 120RPM | 180RPM |
| Rated Voltage | 56VAC | 56VAC | 56VAC | 115VAC | 115VAC |
| Rated Current | 9A | 12A | 17.9A | 10A | 17.4A |
| Efficiency | >85% | ||||
| Wending Method | Y | ||||
| Insulating Resistance | 100Mohm Min(500V DC) | ||||
| Leakage Level | <5 ma | ||||
| Start Torque | <0.1N/M | <0.3 N/M | <0.3 N/M | <0.5 N/M | <0.3 N/M |
| Phase Type | 3 Phase | ||||
| Structure | Out rotor | ||||
| Stator | Coreless wire coil | ||||
| Rotor | Rare Earth Permanent Magnet | ||||
| Generator Shell Diameter | 320 | 380 | 380 | 550 | 450 |
| Generator Shell Length | 232 | 241 | 241 | 330 | 258 |
| Weight | 20 | 32 | 32 | 75 | 51 |
| Shaft drameter | 45 | 50 | 50 | 78 | 59 |
| Generator shell material | Aluminum alloy | ||||
| Shaft material | Carbon steel | ||||
| Bearing | Deep groove ball bearing | ||||
| Model | GDG-3KW-100 | GDG-3KW-180 | GDG-5KW-100 | GDG-5KW-150 | GDG-10KW-100 |
| Rated Power | 3KW | 3KW | 5KW | 6KW | 10KW |
| Rated Rotate Speed | 100RPM | 180RPM | 100RPM | 150RPM | 100RPM |
| Rated Voltage | 380VAC | 380VAC | 380VAC | 380VAC | 400VAC |
| Rated Current | 4.6 | 4.7 | 7.6 | 15.2 | 14.5 |
| Efficiency | >85% | >85% | >88% | >88% | >88% |
| Wending Method | Y | Y | Y | Y | Y |
| Insulating Resistance | 100Mohm Min(500V DC) | 100Mohm Min(500V DC) | 100Mohm Min(500V DC) | 100Mohm Min(500V DC) | 100Mohm Min(501V DC) |
| Leakage Level | <5 ma | <5 ma | <5 ma | <5 ma | <5 ma |
| Start Torque | <1 N/M | <0.5 N/M | <0.5 N/M | <1 N/M | <1N/M |
| Phase Type | 3 Phase | 3 Phase | 3 Phase | 3 Phase | 3 Phase |
| Structure | Out rotor | Out rotor | Out rotor | Out rotor | Out rotor |
| Stator | Coreless wire coil | Coreless wire coil | Coreless wire coil | Coreless wire coil | Coreless wire coil |
| Rotor | Rare Earth Permanent Magnet | Rare Earth Permanent Magnet | Rare Earth Permanent Magnet | Rare Earth Permanent Magnet | Rare Earth Permanent Magnet |
| Generator Shell Diameter | 620 | 550 | 700 | 620 | 770 |
| Generator Shell Length | 410 | 330 | 400 | 410 | 590 |
| Weight | 110 | 65 | 125 | 110 | 245 |
| Shaft drameter | 80 | 78 | 98 | 80 | 85 |
| Generator shell material | Aluminum alloy | Aluminum alloy | Aluminum alloy | Aluminum alloy | Aluminum alloy |
| Shaft material | Carbon steel | Carbon steel | Carbon steel | Carbon steel | Carbon steel |
| Bearing | Deep groove ball bearing | Deep groove ball bearing | Deep groove ball bearing | Deep groove ball bearing | Deep groove ball bearing |
1. Generator use inner foam protection outer Plywooden case .Generator shaft use pipe protection.
2.Pakage size and weight please refer to our sales.
3.Shipping by sea with FCL LCL or by air .
If you have any request in package and shipping please tell our sales we will do according to your request.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2014
Total Annual:
2.5 Million-5 Million
Employee Number:
70~100
Ecer Certification：
Verified Supplier
GREEF NEW ENERGY is global supplier which focus on Wind ,Solar and Hydro generation system solution . We provide customized system solution which suitable for offf-grid , grid-tied and hybrid system for renewable energy system. GREEF own our own factory manufacture permanent magnet generator... GREEF NEW ENERGY is global supplier which focus on Wind ,Solar and Hydro generation system solution . We provide customized system solution which suitable for offf-grid , grid-tied and hybrid system for renewable energy system. GREEF own our own factory manufacture permanent magnet generator...
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