Place of Origin:
QINGDAO
Brand Name:
GREEF
Certification:
CE
Model Number:
GDG
GreeF company supply modified kinds of Coreless Disk Permanent Magnet Generator main model as follow:
GDG-500W 120RPM
GDG-1KW 120RPM
GDG-2KW 180 RPM
GDG-3KW 100RPM
GDG-3KW 160RPM
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, 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 | 56VDC | 115VDC | 115VDC |
| 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.
Generators are free 3 years warranty, All lifelong technical support and part cost supply.
(1) The warranty period is start from the date of shipment which show on the bill of loading or air waybill.
(2) Free maintenance services during the warranty period the cost involved be borne by the company, do not charge a fee to customers, free warranty if any damage outside the warranty period, the company will charge a fee for labor costs and materials.
(3) the warranty period, company's quality problems caused by the maintenance of the freight borne by the company, if not under warranty or man-made damage, the freight charges by the customer.
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