FuSystems SkyWind NG System manual
Installaon Handbook For Professionals
SkyWind NG Micro Wind Turbine, Rev. 2.0
SkyWind NG
Ecient Wind Power
The installaon must be done by trained professionals only! The installer must be qualied and accredited for
work on AC electrical installaons. Expert knowledge and documentaon is mandatory.
1. First Check
You will need an original SkyWind NG turbine including the automac storm control
from FuSystems SkyWind GmbH. If you are not sure wether your parts are original or
not stop the installaon and contact FuSystems SkyWind.
Your SkyWind NG turbine contains:
- Nacelle with generator installed
- 2x Patented SkyWind NG all-metal rotor blade
- Grid inverter including
1x SkyWind NG grid inverter with LCD-Display
1x Grid connecon cable for grid inverter
2x Dump load resistor connecon cable
2x Dump load resistor wall mount
1x Dump load resistor
- Automac storm control including
1x Wind speed sensor
1x Turbine cut-out relais
1x Storm control unit
- Spray Can Protecve Wax Coang
All parts must be checked for any visual damage. Only new and undamaged parts must
be installed!
Only trained professionals with extensive knowledge of the dangers of installaon and
operaon may install and handle SkyWind NG turbines and accessories!
Page 2 | SkyWind Installaon Handbook
2. Site & Customer
SkyWind NG turbines must be installed above obstacles that might disrupt a free and
connuous airow. Remember the following rule:
BASIC RULE: When your head is at the height of the turbines nacelle you must not look into
any trees, houses or other obstacles! You should see the horizon in any direcon!
The turbines nacelle should, in any case, be mounted in a height of 10 m above the
ground at least.
BASIC RULE: The closer a turbine is mounted to the ground, the more energy of the airstream
will be lost due to ground fricon. In most cases a turbine installed in 6m height will generate
only 30 - 40% of a turbine mounted at 10m hub height at the same site.
When installed on a rooop the hub height should be about 1/3 of the buildings height
or width (whatever is greater) above the building.
A turbine should be mounted in the middle of a rooop rather than on its edges.
Individual turbines should be mounted in ve (5) meters distance to each other.
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4. Opening The Generator
Mark the side of the nacelles cover which is facing the sha. Only in this direcon the
cover will t to the turbine again aer dismounng.
Open up the nacelle by loosening all the screws highlited in yellow. Keep the turbine in
the posion shown under Fig. 1.
3. Visual Check
Place the turbine as shown in the picture. Do not place the turbine on the back. This
would lead to the metal deforming once the cover is removed.
Check the turbine for any potenal visual damages.
Check the generator by turning the sha by hand. If needed you may conect the genera-
tor to a 30 V DC power source. The generator should consume about 0,45 A .
Any visual damage on the turbines packaging must be reported to the shipper immedi-
atly upon receiving the package! Any damage of the turbine itself must be reported
within ve (5) days aer receiving!
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6. Nacelle Finalizaon
Mount the nacelle cover again using the screws marked in yellow. Fix the yellow screws
with 2 Nm torque.
During installaon the turbines yaw-axis can be locked to make installaon easier and
safer. This can be done by ghtening the yaw-lock screw (red). Before the turbine can
begin operaon this screw has to be loosened so that half its lengh is outside the turbi-
ne. Aer installaon x the screw using Locte.
The bearing-lockers should be checked (green). If these are too ght the turbine won´t
be able to yaw correctly. If these are too loose the turbines operaon might be louder
than expected.
Never use any other screws than those delivered with the turbine! In case of loss of
screws please contact FuSystems SkyWind.
5. Nacelle Cable Connecon
Measure up 6 mm² (AWG 10) solar cable so that the lengh will be sucient from turbine
to the inverter. The DC cable should not be longer than 20 m. If a longer distance must
be covered, change from 6 mm² to 12 mm² (AWG 6) aer the rst ve meters. The dis-
tance covered DC must not exceed 50 m in any case.
Lead the cable from the down end of the mast adaptor into the nacelle (see picture).
Please note that the generator must not be dismounted to do so.
Lead one cable le to the generator, one cable to the right of the generator (see pic-
ture) towards the generators connecon cables. Apply plenty of grease to the mast
adaptor.
Connect the generator cables to your DC cables using crimp connectors.
Fix the cables to the nacelle using zipes at the dedicated wholes in the nacelle (see
picture).
Page 5 | SkyWind Installaon Handbook
8. DC Electrical Preparaons
Lay all necessary DC cabling before the next steps of installaon except
the last meters from the turbine (top end of tower) to the lower end of the tower. Pre-
pare necessary cable ducts.
Set-up and install the automac storm control in a separate box (yellow mark) next to
the inverters place. Install an AC switch that controls the energy supply of the automac
storm control (green mark). This switch may later be used as a manual brake for the
wind turbine as the automac control stops operaon in case of a voltage drop.
The switch may only be operated every ve minutes to allow cool-down of the relay!
Make the necessary DC connecons between automac storm control and inverter. See
wiring diagram on the next page for details.
7. Mounng Preparaon
Aach a ng ring terminal to the end of your DC cable to ensure easy and quick
connecon to the inverter later on. If you use more than a single cable make sure that
the connecon is safe and durable (e.g. MC connectors). Mark the + and the - pole
clearly and unmistakably!
The turbine nacelle is now prepared for mounng on a suitable mast.
Write down the serial number of the SkyWind turbine. You will later need it for your
warranty cercate.
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Seite 4 | SkyWind Installaon Handbook
Turbine stop at 50 kph (recommended) | 70 kph (max.)
Turbine stop immediatly aer max. wind speed is reached
Turbine stop for ve (5) minutes aer max. wind speed is reached
Relais mode: hold
Every SkyWind NG turbine must be equip-
ped with an eecve storm protecon
system. For safety reasons this system
needs to be redundant.
The alongside wiring layout must be in-
stalled by a professional electrician with
greatest care. The system is designed to
stop the turbine in case of a grid power
loss and in case of wind speeds above the
turbines limitaons.
The storm control will stop the turbine by short-circuing the
turbines DC side. For this reason the poles Nr. (1) 12 and (3) 32
must be connected to each other.
The wind sensor must be installed 0,20m below the rotor discs
lowest point on the mast of the wind turbine.
Aer installaon the system must be checked in two separate
ways:
1. Shut o the turbines AC power. The rotor rotaon must
rapidly decrease immediatly.
2. Set the storm controls reacon wind speed to 10 kph. The
relay should now switch with a ‚klick‘ noise upon the
slightest breeze.
Regularily check the storm controls funcon to guarantee for a
safe and reliable operaon for years to come.
9. Automac Storm Control
Wiring Diagram
Page 7 | SkyWind Installaon Handbook
max. 35 m
12. Seng Up The Onboard Computer
A proper Set-Up of the SkyWind´s computer is vital to a safe and reliable operaon of
your wind turbine.
Carefully follow the instrucons on the next page to make sure your turbine is set-up
properly. In case of any doubt contact your SkyWind representave.
Document all sengs of your storm control system and of your inverter by taking pic-
tures. Without photographic documentaon your warranty is void.
10. DC Installaon Of The Inverter
Connect the inverter to the turbine using the far right red + and black - connectors la-
beled with „DC INPUT“ (yellow marking). Make sure that the polarity is correct!
Mount the dumpload close to the inverter, but not below it. In case of too much power
the resistor might become very hot. Do not mount it onto ammable surfaces and use
the mounts delivered with your turbine.
Connect the dumpload to the connectors labeled „DUMPLOAD“ (green marking).
Page 8 | SkyWind Installaon Handbook
11. AC Installaon Of The Inverter
Connect the inverter to the AC grid using the „AC OUTPUT“ connector, according to y-
our naonal standards.
Immediatly aer connecng the inverter to the AC grid the LCD display should light up.
The inverter must be installed in a suitable place without uid or condensang water or
extreme temperatures.
Page 9 | SkyWind Installaon Handbook
12. a) Set Up Details
A new inverter must be set-up: Navigate to the main menu by pressing the ‚Home‘-buon on the side of
the display. Use the ‚arrow‘-buons to navigate to the ‚Gear‘-symbol on your display and enter the menu
by pushing the ‚Gear‘-buon on the side of the display.
Now use the ‚arrow‘-buons to select the „Current Curve Adjust“ box and ck it by pushing the ‚Gear‘-
buon. Select Powercurve A oder Powercurve B according to your sites criteria:
12.a) I) Power Curve A For sites with an even ow of wind
12. a) II) Power Curve B For sites with a gusty or partly turbulent ow of wind
Once you have decided for the correct powercurve, use the ‚arrow down‘ key to navigate into the rst da-
ta eld. Acvate the data set-up by pushing the ‚Gear‘-buon on the side of the display and select the cor-
rect number by again using the ‚arrow‘-buons. By pushing the ‚Gear‘-buon again you conrm your ent-
ry. Enter the complete power curve.
Aer compleng the power curve navigate to the ‚Dumpload‘ box by using the ‚arrow‘-buons and ac-
vate it using the ‚Gear‘ buon. Select 45V if you decided for power curve A, or select 40V if you decided for
power curve B using the ‚arrow‘-buons. Conrm your entry by pushing the ‚Gear‘-buon.
Conrm your entries by pushing the ‚home‘-buon on the side of your display. Save your entries by selec-
ng ‚YES‘ and conrming using the ‚Gear‘-buon in the next menu.
Congratulaons—your inverter has been set-up for operaon.
23V 26V 30V 34V 38V 42V 46V 50V 52V
A023 028 038 047 059 074 093 117 142 x0.1A
23V 26V 30V 34V 38V 42V 46V 50V 52V
B018 024 034 055 072 094 115 134 155 x0.1A
14. Choosing A Suitable Tower
Choose a matching tower. The tower must at least:
1. Withstand a thrust force from the turbine of 750 N
2. The tower top must not deect more than 1° from the vercal under 50% load
3. The tower resonance frequencies must not be between 10 - 50 Hz
4. The tower top meter must have a diameter of 60 mm
5. The tower top must exceed the height of the surrounding trees, buildings etc.
A wall thinkness of at least 3 mm is recommended. Only steel towers should be used. Guy
wires may be used if needed.
Firmly ghten the two turbine securing screws (yellow markings). Make sure that both
screws are evenly ghtened. The nacelle must be xed in an absolutly parallel posion
to the ground.
13. Finalizing The Electrical Installaon
Check the whole electrical installaon and write down your wiring diagram.
Document all sengs of your storm control system and of your inverter by taking pic-
tures. Without photographic documentaon your warranty is void.
As soon as the turbine is provided with sucient wind speed the inverters will invert
power into the grid.
The inverters will work on standard 230V and 110V AC grids. The inverters are set up for
the SkyWind only and may not work with other turbines or solar panels.
Page 10 | SkyWind Installaon Handbook
*Picture is showing older inverters
16. Final Tesng
Connect an adjustable power source to the DC Input of the inverter using a banana jack.
The inverter and the automac storm control stay acvated.
Supply the turbine with a DC voltage of 5 V. The turbine should rotate slowly in
clockwise orientaon (Perspecve: Rotor in front of tower). The turbine should guide
the rotor with the wind.
Supply the turbine with a DC voltage of 25 V. The rotor should now rotate at high speed.
The inverter should feed AC energy into the grid.
The voltage should only be increased gradually. Do not connect a baery or any other power
source to the turbine or inverter as these provide high shock currents. This might loosen the
screw xing the rotor or damage the generator.
THE INSTALLATION IS NOW COMPLETED.
15. Installing The Blade
Acvate the manual turbine stop or make sure that the storm control is without power.
This way the turbine will not start up immediatly aer installaon of the rotor blade.
Install the patented SkyWind rotor blade as the last part of the installaon. The blade is
made of one piece and ships balanced for best possible performance. Aer installaon
of the blade between the two precision made aluminum cones, the single xing screw is
ghtened unl the lock ring is pressed at. This rotor xing screw (red marking) must be
xed with a torque of 7 Nm.
Cover every part of the turbine nacelle and mast adaptor with a protecve wax
(delivered together with your turbine) aer installaon. For coastal sites with salty air
this must be done inside the turbine nacelle (Fig. 5) as well.
The turbine may now be started up for the rst me and should work immediatly. The start up
speed will decrease considerably within the rst 100 hours of operaon under load.
Page 11 | SkyWind Installaon Handbook
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FuSystems SkyWind GmbH | Bayernstraße 3, 30855 Langenhagen, Germany | www.fusystems.com
INSTRUCTION FOR REGIONS WITH HURRICANES, TYPHOONS OR OTHER EXTREME WIND EVENTS:
Dismount the rotor (Fig. 15) before any storm as no wind turbine is able to withstand the ext-
reme forces of such events!
This document represents the interpretaon of the original document „Bedienungsanleitung, Version 4.0“ which may be
found online at hp://myskywind.com/SkyWind/Infothek-Flyer-Broschuren-Vide/Bedienungsanleitung-SkyWind-4.0.pdf and
was made to the best knowledge of the interpreter. Only the original document is legally binding.
