125 V
−1
60 V
DC (+)
DC (−)
U
t
0 V
−
320 V
U
PV
= 125 V
180 V
−
180 V
−
250 V
250 V
320 V
0 V
−
320 V
U
t
U
PV
= 500 V
DC (+)
DC (−)
Fig. 1: Potential curves of U
PV
at 125 V (left) and 500 V (right)
StecaGrid 3000/3600/4200 and 3600x/4200x
175 V
−
175 V
−
275 V
275 V
320 V
U
t
0 V
−
320 V
U
PV
= 350 V
DC (+)
DC (−)
175 V
−
175 V
−
275 V
275 V
320 V
0 V
−
320 V
U
t
U
PV
= 550 V
DC (+)
DC (−)
Fig. 2: Potential curves of U
PV
at 350 V (left) and 550 V (right)
2.5 About this manual
2.5.1 Contents
These instructions describe the type coolcept and coolcept-x inverters. The differences between the
types are marked in the text.
These instructions contain all information required by a technical professional for setting up and
operating the inverters. Follow the instructions of the respective manufacturers when installing
other components (e.g. solar modules, cables).
2.5.2 Target audience
Unless otherwise indicated, the target audiences of this manual are technical professionals and
system operators. Technical professionals are, for example:
GB
747.431 | Z08 | 2014-01-31
83
Содержание coolcept StecaGrid 1800
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