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Jacobs 31-20 Brochure - .pdf                                                            Warranty Information - .pdf    

Turbine Systems:

 
  Models 31-20 26-17.5 26-15 23-12.5 23-10
Rated Kilowatt Output 20 17.5 15 12.5 10
  Cut-In Wind Speed (mph) -------------------------- 8 mph ------------------------------
Rated Wind Speed (mph) 26 27 26 27 25
  Rated Rotor Speed (rpm) 175 195 205 205 195
Survival Wind Speed

------------------------- 120 mph ----------------------------

  Weight (lbs.) 2500 2500 2500 2500 2500
Height (ft.)
(less Rotor)
--------------------------- 9 feet ------------------------------
10Kw - 17.5Kw systems available on request - contact your dealer or manufacturer for details

Turbine Rotor:

 

  Models 31-20 26-17.5 26-15 23-12.5 23-10
  Number of Blades 3
Orientation Upwind
  Axis (nominal) Horizontal
Rotation Counter Clockwize
  Blade Material

Fiberglass

Rotor Diameter (ft.) 31 26 26 23 23
  Swept Area (ft.) 660 530 530 415 415
Speed Control

 

  1. Centrifugal variable pitch governor (Loaded 25 - 30 mph, Unloaded 15 - 20 mph).
  2. Automatic furling - hypoid gear drive (40 - 45 mph) .
  Yaw Control Passive Tailvane

Generator:

 
  Models 31-20 26-17.5 26-15 23-12.5 23-10
  Type Brushless, Synchrous, Three phase AC 12 lead reconnectable with outbound exciter.
Exciter Field 60 ohm, 2 amps. DC
  Power Rating (kva) 25 (Winco) 20 20 20 20
Voltage 40 - 180 VAC
  Speed (rpm) 450-1050 450-1230 450-1230 450-1170 450-1170
Frequency (hz) 0 - 40 0 - 40 0 - 40 0 - 40 0 - 40

Transmission:

 
  Type Offset Hypoid Gear Drive
Ratio 1:6.1

Brake System:

 
  Type Manual Disc (service/maintenance)

Support Towers:

 
  Type & Material Jacobs® Three legged free standing lattice (no welds).
Corrosion Protection Hot dipped galvanized.
  Height & Weight   80 ft. = 4300 lbs.
100 ft. = 6200 lbs.
120 ft. = 8200 lbs.
Base Width   80 ft. =   9 ft.
100 ft. = 11 ft.
120 ft. = 13 ft.
  Options Tilting Hinges

Inverter

 

Nexus - Nex 20

Manufacturer <------------> Wind Turbine Industries Corp.
Make   /   Model <------------> NEXUS™   /   NEX20
- Input  (From Alternator) -
Phase <------------> 3
Voltage <------------> 0 to 220 V - RMS
Frequency <------------> 0 to 40Hz
Line Amps <------------> 0 to 60A-RMSst
- Output Data (AC) -
Phase <------------> 1
Voltage <------------> 240 V-RMS
Frequency <------------> 60 Hz RMS
KVA <------------> 25
AC Nominal Power <------------> 20,000 W
AC Maximum Output Power <------------> 21,000 W
AC Maximum Output Current @ 240 V <------------> 88A
Power Factor <------------> 1 or 100% (unity)
- Efficiency -
Peak Inverter Efficiency <------------> 98%
- Mechanical Data -
Dimensions W x H x D in inches <------------> 27 x 36 x 11
Weight <------------> 150lbs
Ambient Temperature Range <------------> 0 to 110 °F
Operating Humidity <------------> 0 - 90% Relative humidity 
(w/o condensation)
Topology <------------> PWM, true sine wave, voltage source
Cooling <------------> Forced Air
- Features -
Display <------------> LCD
Encasement Color <------------> Brushed Aluminum
Communication  <------------> coming
Warranty <------------> 5 year
Compliance <------------> UL 1741, FCC Part 15 A&B, 
IEEE 1547
***Manufacutred exclusively for use with the Jacobs® 31-20 Wind Energy System***