aleo
aleo solar Deutschland GmbH
| Osterstraße 15| 26122 Oldenburg |
Germany
| service@aleo-solar.com
installation instructions Edition 01/2012 en-GB-Intl (120508b)
Page
53
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60
C.2.
Current direction in loops
If you are laying numerous loops, lay them in such a way that
the current direction alternates from loop to loop. If you have
laid the first loop with a clockwise current direction, for
example, lay the neighbouring loop so that the current
direction is counterclockwise. Avoid laying numerous adjacent
loops with the same current direction.
This ensures that the induction effect of the individual loops is
completely or partially offset instead of cumulative.
Recommended configuration of loops
Fig. 41 Recommended configuration of loops with alternating
current direction (diagram)
a
: junction boxes,
b
: loop with counterclockwise current
direction,
c
: loop with clockwise current direction.
The coupling effects of the areas of loops
a
and
c
are approx. offset (minor coupling effect).
Loops configurations to be avoided
Fig. 42 Configuration of loops with the same current direction
are to be avoided (diagram)
a
: junction boxes,
b
and
c
: loops with the same current
direction.
The areas of loops
b
and
c
mutually reinforce their
coupling effect (greater coupling effect).
C.3.
Laying the return circuit
If, for example, you begin by connecting the module string to
the positive pole – coming from the building – then, where
possible, lay the negative pole of the module string – also
coming from the building – as close along the series con-
nection of the modules as possible.
Begin with the parallel leading at the positive pole of the
module string and follow it to the negative pole of the module
string.
16
Keep the distance of the return circuit from the
outgoing circuit small.
With a longer parallel lead, where possible,
interlace the outgoing and return wiring.
This keeps the area small that is responsible for the lightning
current‘s coupling effect.
Recommended path of the return circuit
Fig. 43 Recommended path of the return circuit (diagram)
Continuous line
: series connection of the modules with the
positive pole of the module string,
dotted line
: return circuit at the negative pole of the module
string.
The return circuit (the negative pole of the module
string) runs closely along the series connection,
beginning with the positive pole of the module
string.
With a longer parallel lead, the outgoing and return
circuits are interlaced with one another.
16
If you would like to begin the wiring at the negative pole of
the module string, use the lead of the return circuit for the
positive pole, respectively.
GID AS050a
a
b
a
c
GID AS051a
a
b
a
c
GID AS052a
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