Skystream Owner’s Manual
3-CMLT-1054 Rev O XCO 1191
Pg. 6
Skystream 3.7
®
Technical Specifications
Model
Skystream 3.7
Rated Power
1
2.1 kW at 11 m/s (24.6 mph)
Nominal Power
2.4 kW at 13 m/s (29 mph)
Weight
170 lbs. / 77 kg
Rotor Diameter
12 feet / 3.72 metres
Swept Area
115.7 ft
2
/ 10.87 m
2
Type
Downwind rotor with stall regulation
control
Direction of
Rotation
Clockwise looking upwind
Blades
3 Fiberglass reinforced composite
Rotor Speed
50 - 330 rpm
Shutdown Speed
370 rpm
Tip Speed
66 - 213 f/s / 9.7 - 63 m/s
Alternator
Slotless permanent magnet brushless
Yaw Control
Passive
North America
-
Grid Feeding
120 / 240 Volt, 60 Hz, 2 Phase (split single
phase);
120 / 208 Volt, 60 Hz, 3 Phase
Europe
-
Grid Feeding
230 Volt, 50 Hz, 1 Phase
Braking System
Electronic stall regulation w/redundant relay switch
control
Cut-in Wind Speed
3.0 m/s (6.7 mph)
User Monitoring
Wireless 2 way interface remote system
Survival Wind Speed
140 mph / 63 m/s
Total Harmonic Distortion
2.7% at 2400W, meets UL1741 and IEEE1547.1
requirements IEC/EN 61000-3-2; Class A EU
Limits;
IEC 61400-21
Maximum output fault current (ac) and duration
720 A, Instantaneous
Maximum output overcurrent protection
25 A, Fused
Normal operation temperature range
-40° C to +50° C (-40° F to +122° F)
Maximum (continuous) output power @ +25° C (+77° F)
2.3 kW
Maximum (continuous) output power @ +50° C (+122° F)
1.5 kW
Limits of accuracy of frequency measurement
+ 0.05 Hz
Limits of accuracy of Voltage measurement
+/-2.0 V L-N
Trip Time Accuracy
+/- 32 ms
Surge Rating
IEEE 1547 Surge Rating B
European Requirement IEC 61000-4-5
Sound Pressure Level
46.4 dB(A) at 60 m, 8 m/s
1
Power performance testing by WINDTEST, Kaiser-Wilhelm-Koog, Germany; November 14, 2008 - March 22, 2009. With
Combined Standard Uncertainty. Reference air density: 1.22 kg/ m3.
1
Power performance testing by WINDTEST, Kaiser-Wilhelm-Koog, Germany; November 14, 2008 - March 22, 2009. With
Combined Standard Uncertainty. Reference air density: 1.22 kg/ m3.
