ARIA Libellula 55kW - small size wind turbine

Description


Libellula 55kW is the new small size wind turbine that grants the same reliability of big size wind turbines. Following the main technical data about the wind turbine:
 

GENERAL

cut-in wind speed 3 m/sec.
rated wind speed 11 m/sec
cut-out wind speed 25 m/sec.
extreme wind speed Ve50 = 52,5 m/sec.
rated power 55kW
grid voltage 400V ±10% 3 ph 50Hz
other on request

ROTOR


number of blades 2
diameter 18 m
speed variabile 60 - 95 rpm
power regulation passiva : variazione dell’angolo
delle pale
attiva : inverter


GEARBOX

type 2 stages – parallel shafts
ratio 1:20
nominal power 125 kW

MAIN GENERATOR

type asincronous - 4 polesrated power 55 kW
nominal voltage 400 V
frequency variable: 40 - 70 Hz.


GRID CONNECTION

converter type combined: inverter + rotating
asyncronous converter (*)
conversion principle AC-DC-AC+rotating converter
grid connected generator asincronous 55 kW - 4 poles
nominal voltage 400/460 V
frequency 50/60 Hz

TOWER


tipo cylindrical pipe 24 , 27 or 30m
number of sections 2 or 3
hub height 25, 28 or 31 m
material hot dip galvanised steel
location ascent internal


CONTROL SYSTEM


type n.2 PLC
remote diagnostic YES (by SMS with GSM modem)

YAW SYSTEM

type active
yaw motors n.1
yaw bearing crown-bearing; externally geared


SAFETY


1° safety system passive blade pitch
activation rotor speed (95rpm)
2° safety system yawing out of the wind
activation rotor speed (105rpm)
excessive vibrations
failure anemometer or wind vane
failure in PLC
grid failure
inverter error
yawning system failure
rotor blocking system on high speed shaft
for maintenance
activation manual

WEIGHTS

rotor 900 kg
navicelle including rotor 2.900 kg
tower 5.700, 7.800 or 10.800 kg



CERTIFICATION EN 61400-1

Certificate number 001CU/0 by ICIM SpA

(*) patent pending



 

 

For more informations please download the technichal sheet in PDF

Available documents

ARIA Libellula 55kW - small size wind turbine
Technical files - EN
Libellula 55kW - turbina eolica
Technical files - IT
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