Business Areas

Rim Small Hydro Power Generator

Unlike conventional small hydropower generators, our pipe-mounted rim-driven small hydropower generator does not require mechanical devices such as shafts. It is also a new-concept small hydro generator that generates electricity with propellers attached directly to a ring-shaped rim. In addition, unlike the conventional ones, ours is a small hydropower generation system that is directly connected to the discharge water pipeline without the need for civil construction (dam or water barrier).

[Main Characteristics]

  • Structure is simple, and possible to be small, lightweight
  • Component parts can be separated, and easy to be installed and repaired
  • Increase in efficiency due to direct cooling through inflow of seawater, freshwater
  • Durable due to structural waterproofing of stator, rotor
  • Remove jammed foreign materials and lower defect rates
Rim Small Hydro Power Generator GRM-HY10K
General Specifications
Turbine Type Rim Driving Type
Standard Power Range 10-100KW
Generator Type Permanent Magnet Generator
Rotation Speed 400~600rpm
Effective Head 2m~16m
Discharge 0.1㎥/s ~2.5㎥/s
Total Efficiency >80%(Turbine+Generator)
Flange Dimension PNG (DIN-EN 1092-1)
Material + Surface Treatment SUS + Epoxy paint
Standard Size Φ600*350L
Maintenance Programmed revision according to
O&M Manual at one year intervals
Life Span Up to 20 years
Grid Interface
Voltage 3Phase AC380V
Grid Frequency 50,60Hz 3Phase
Power Factor Cosφ > 0.95 at full Load

Company : GRAMM Co., Ltd. | CEO : Kim Dohyeon | Business Number : 499-87-02155
Email : regramme@gmail.com | Tel : 051-629-7353 | Fax : 051-629-7354

Headquarter&Research Institute : [48548] 1608-B, Hanmir Bldg, Pukyong National University,
365, Sinseon-ro, Nam-gu, Busan, Korea
Factory : [45012] 20, Yeonsan 3-gil, Seosaeng-myeon, Ulju-gun, Ulsan

ⓒ 2023. GRAMM Co., Ltd. all rights reserved.

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