FuSystems SkyWind NG System manual

Installaon Handbook For Professionals
SkyWind NG Micro Wind Turbine, Rev. 2.0
SkyWind NG
Ecient Wind Power
The installaon must be done by trained professionals only! The installer must be qualied and accredited for
work on AC electrical installaons. Expert knowledge and documentaon is mandatory.

1. First Check
 You will need an original SkyWind NG turbine including the automac storm control
from FuSystems SkyWind GmbH. If you are not sure wether your parts are original or
not stop the installaon 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 connecon cable for grid inverter
2x Dump load resistor connecon cable
2x Dump load resistor wall mount
1x Dump load resistor
- Automac storm control including
1x Wind speed sensor
1x Turbine cut-out relais
1x Storm control unit
- Spray Can Protecve Wax Coang
 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 installaon and
operaon may install and handle SkyWind NG turbines and accessories!
Page 2 | SkyWind Installaon Handbook

2. Site & Customer
 SkyWind NG turbines must be installed above obstacles that might disrupt a free and
connuous airow. 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 direcon!
 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 fricon. 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 rooop 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 rooop rather than on its edges.
 Individual turbines should be mounted in ve (5) meters distance to each other.
Page 3 | SkyWind Installaon Handbook

4. Opening The Generator
 Mark the side of the nacelles cover which is facing the sha. Only in this direcon the
cover will t to the turbine again aer dismounng.
 Open up the nacelle by loosening all the screws highlited in yellow. Keep the turbine in
the posion 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 potenal 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 aer receiving!
Page 4 | SkyWind Installaon Handbook

6. Nacelle Finalizaon
 Mount the nacelle cover again using the screws marked in yellow. Fix the yellow screws
with 2 Nm torque.
 During installaon the turbines yaw-axis can be locked to make installaon easier and
safer. This can be done by ghtening the yaw-lock screw (red). Before the turbine can
begin operaon this screw has to be loosened so that half its lengh is outside the turbi-
ne. Aer installaon x the screw using Locte.
 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 operaon 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 Connecon
 Measure up 6 mm² (AWG 10) solar cable so that the lengh will be sucient 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) aer 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 connecon 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 zipes at the dedicated wholes in the nacelle (see
picture).
Page 5 | SkyWind Installaon Handbook

8. DC Electrical Preparaons
 Lay all necessary DC cabling before the next steps of installaon 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 automac storm control in a separate box (yellow mark) next to
the inverters place. Install an AC switch that controls the energy supply of the automac
storm control (green mark). This switch may later be used as a manual brake for the
wind turbine as the automac control stops operaon 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 connecons between automac storm control and inverter. See
wiring diagram on the next page for details.
7. Mounng Preparaon
 Aach a ng ring terminal to the end of your DC cable to ensure easy and quick
connecon to the inverter later on. If you use more than a single cable make sure that
the connecon is safe and durable (e.g. MC connectors). Mark the + and the - pole
clearly and unmistakably!
 The turbine nacelle is now prepared for mounng on a suitable mast.
 Write down the serial number of the SkyWind turbine. You will later need it for your
warranty cercate.
Page 6 | SkyWind Installaon Handbook

Seite 4 | SkyWind Installaon Handbook
Turbine stop at 50 kph (recommended) | 70 kph (max.)
Turbine stop immediatly aer max. wind speed is reached
Turbine stop for ve (5) minutes aer max. wind speed is reached
Relais mode: hold
Every SkyWind NG turbine must be equip-
ped with an eecve storm protecon
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 limitaons.
The storm control will stop the turbine by short-circuing 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.
Aer installaon the system must be checked in two separate
ways:
1. Shut o the turbines AC power. The rotor rotaon must
rapidly decrease immediatly.
2. Set the storm controls reacon wind speed to 10 kph. The
relay should now switch with a ‚klick‘ noise upon the
slightest breeze.
Regularily check the storm controls funcon to guarantee for a
safe and reliable operaon for years to come.
9. Automac Storm Control
Wiring Diagram
Page 7 | SkyWind Installaon Handbook
max. 35 m

12. Seng Up The Onboard Computer
 A proper Set-Up of the SkyWind´s computer is vital to a safe and reliable operaon of
your wind turbine.
 Carefully follow the instrucons on the next page to make sure your turbine is set-up
properly. In case of any doubt contact your SkyWind representave.
 Document all sengs of your storm control system and of your inverter by taking pic-
tures. Without photographic documentaon your warranty is void.
10. DC Installaon 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 Installaon Handbook
11. AC Installaon Of The Inverter
 Connect the inverter to the AC grid using the „AC OUTPUT“ connector, according to y-
our naonal standards.
 Immediatly aer connecng the inverter to the AC grid the LCD display should light up.
 The inverter must be installed in a suitable place without uid or condensang water or
extreme temperatures.

Page 9 | SkyWind Installaon Handbook
12. a) Set Up Details
A new inverter must be set-up: Navigate to the main menu by pressing the ‚Home‘-buon on the side of
the display. Use the ‚arrow‘-buons to navigate to the ‚Gear‘-symbol on your display and enter the menu
by pushing the ‚Gear‘-buon on the side of the display.
Now use the ‚arrow‘-buons to select the „Current Curve Adjust“ box and ck it by pushing the ‚Gear‘-
buon. 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. Acvate the data set-up by pushing the ‚Gear‘-buon on the side of the display and select the cor-
rect number by again using the ‚arrow‘-buons. By pushing the ‚Gear‘-buon again you conrm your ent-
ry. Enter the complete power curve.
Aer compleng the power curve navigate to the ‚Dumpload‘ box by using the ‚arrow‘-buons and ac-
vate it using the ‚Gear‘ buon. Select 45V if you decided for power curve A, or select 40V if you decided for
power curve B using the ‚arrow‘-buons. Conrm your entry by pushing the ‚Gear‘-buon.
Conrm your entries by pushing the ‚home‘-buon on the side of your display. Save your entries by selec-
ng ‚YES‘ and conrming using the ‚Gear‘-buon in the next menu.
Congratulaons—your inverter has been set-up for operaon.
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 deect more than 1° from the vercal 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 posion
to the ground.
13. Finalizing The Electrical Installaon
 Check the whole electrical installaon and write down your wiring diagram.
 Document all sengs of your storm control system and of your inverter by taking pic-
tures. Without photographic documentaon your warranty is void.
 As soon as the turbine is provided with sucient 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 Installaon Handbook
*Picture is showing older inverters