Coemi G 3 55kw Wind Turbine
The Coemi 55/15 Wind Turbine is a worthy candidate for use at large PLCs and industrial units, large farms and manufacturing plants.
The Coemi 55/15 wind turbine is a direct grid connected to a three-phase mains power supply, making it ideal for large energy users and small wind farms.
Its massive 3-blade rotor has a 15.2 metre diameter using Technology first discovered by the Danish Wind Industry using Fixed Pitch Stall Regulated Blades with automatic centrafugal tip brakes to ensure the turbine rota can not over rotate.
Operation is similar to a Vestas V20 using a fixed rotation speed of 59RPM driving an Asynchonous induction generator through a 75kW two stage gearbox. In addition the design incorporates a unique torque limiter to protect the gearbox agained high gusts.
The 18m can be supplied with a unique hydraulic ram system to raise and lower the free-standing 18-meter galvanised tower and therefore do not require a crane for erection.
Free standing towers 18m and 30m are available with an access ladder and cage
Coemi wind turbines come with a five-year warranty (first year labour-free) and are the most technologically advanced on the market. Find out why Coemi Wind Turbines are the only choice for your business.
Aeronautical Blade Design
Fixed Stall Regulated Blades (FSRB)* ensure that the generator will operate even in strong gusty wind conditions.
*The Coemi 55/15 has additional centrifugal tip brakes (CTB) which automatically regulate the blade speed to ensure they do not over rotate
Because the blades are fixed with no moving parts, they are more robust and lighter than variable pitch turbines with the additional benefit of a lower start up generating wind speed from 3 m/s (6.9mph). Normal blade rpm is fixed at 59rpm.
Efficiency
Direct grid connection means the Coemi 55/15 wind turbine is connected directly to the mains and does not require rectification, dump or inverter, making it up to 20% more efficient.
Safety
Powerful hydraulically operated Twin caliper disc brake operates on the low speed shaft. These are released when pressurised, therefore they are fail safe if either the hydraulics fail or the mains is diconnected.
Technological
The system is controlled by a Siemans PLC controller which monitors the wind speed, direction, load, mains voltage, mains cycle Hz and rotation speed.
GPRS is used to enable engineers to monitor and update the turbine remotely through the internet.
Manufacture
Assembled in Shannon Ireland with European supplied components
Features:
- Siemens PLC controller
- ABB Fixed speed 50Hz Electro magnet generator
- Super quiet gearbox
- GPRS Internet monitoring means your turbine can be monitored remotely and technical updates and adjustments can be carried out without a site visit.
- Powerful induction yawl motor is used to turn the head in and out of the wind ensuring maximum reliability and life.
- Two braking systems automatic and manual.
- Fully galvanised free-standing tower, Hydraulically raised and lowered (no crane required).
- CE and undergoing MCS testing
- 5 year manufacturers parts warranty
Typical installation costs including base and planning, however installation costs can vary. Cable lengths can also vary and are not included.
prices from September 2011
| Direct Grid Wind Turbine Systems | Max generation per hour (kW-h) | Typical annual output kW-h @ 6m/s | Cost £: Connected to National Grid with hydraulic erected tower (exc. Cable) | |
| Coemi 55/15 | 55 kW-h | 139,000 | £189,934 |
| Technical specification | Coemi 55/15 |
| Rated power(W) | 55,000 |
| Rated voltage(DCV) | 415±10% VAC3Phases |
| Rated current (DCA) | 76a AC |
| Rotor diameter(m) | 15.20 |
| Blade material | GFRP Epoxy Resin with PMI |
| Rotation direction | Clockwise |
| Start-up wind speed(m/s) | 2.5 |
| Rated wind speed(m/s) | 11.0 |
| Cut-out wind speed(m/s) | 20 |
| Survival wind speed(m/s) | 45 |
| Net weight(T) | 3.25 |
| Wind turbine type | Upwind |
| Rated Rotating speed(RPM) | 59 |
| Blades No. | 3 Fixed Pitch Stall Regulated + Centrifugal Tip Brake |
| Hydraulic tower height (m) | 18 |
| Yaw mechanism | Electric |
| Annual yield @ 6 m/s (kwh) | 139,000 |
| Yaw mode | Auto/manual |
| Braking System | Normally on Duel Fail Safe Brakes |
| Efficiency | 0.93% |
| Wind turbine tilt-angle | 6° |
| Mains failure protection | Air switch |
| Frequency(Hz) | 50 |
| Protocol | G59/1 |