……………………………………………………
10. Wiring / Eletrical Connection
Seite 30
| Owners Manual SkyWind NG, Version 5.1
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10.4 Correction for height above mean sea level / air density
A wind turbine will only work correctly and safely if it is set
-
up correctly. Apart from what many
people think the set
-
up does not end with a correct wiring, but includes a correct power curve
(and storm control) program as a vital component! If the inverter tries to get more power than
the turbine can deliver the turbine will actually stop generating power
-
much like
„
stalling
“
a
car engine.
The higher a site is above mean sea level the thinner the athmosphere will be. A thinner ath-
mosphere means less mass flowing through the rotor at the same air speed and thus less
power. The turbine must correct for this by working with different rpm. If your site is not within
+/
-
500 m above or below sea level your turbines computer has to be adjusted. In this case en-
ter the power curve that fits your turbines height above sea level using the same procedure
shown on the last page:
Power Curve C
Choose the correct height above MSL for your turbines site:
Use the same procedure shown on the last page to set the power curve in your computer.
Correctly choosing and setting the power curve is very important for both safety of operation
and power production!
A wrong selection of the power curve might not only damage your tur-
bine, you will also find that it is generating almost no energy at all. Imagine it for your turbine to
be like trying to drive your car with the wrong gear selected: Start driving in highest gear
-
it just
wont work! Driving on the highway in first gear? Not very efficient! Take your time to fully un-
derstand your site and your wind turbine and set
-
up everything correctly right from the begin-
ning.
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The inverter main menu
…………………………
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The power curve adjustment menu
Height above MSL
23V
26V
30V
34V
38V
42V
46V
50V
52V
-
500 m
018
024
034
055
072
094
115
134
155
501
-
999 m
016
022
031
050
065
085
104
121
140
1000
-
1999 m
015
019
028
045
058
076
093
109
126
2000
-
2999 m
013
018
025
040
053
069
084
098
113
3000
-
3999 m
012
016
022
036
047
062
076
088
102
4000
-
4999 m
011
014
020
033
043
056
068
080
092