User manual

StecaGrid 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. 3: Potential curves of U
PV
at 350 V (left) and 550 V (right)
2.5 About this manual
2.5.1 Contents
This manual describes the inverters of the types coolcept and coolcept-x. The points at which the
types differ are marked in the text.
This manual contains all information that a specialist needs to set up and operate the inverters.
Follow the instructions of the respective manufacturers when installing other components (e.g. PV
generator, cables).
2.5.2 Target group
Unless otherwise indicated, the target audiences of this manual are technical professionals and
system operators. Technical professionals are, for example:
n Persons who have the knowledge of terminology and the skills necessary for setting up and
operating photovoltaic systems.
n Persons who have the necessary training, knowledge and experience, and knowledge of the
applicable regulations in order to evaluate and recognise the dangers inherent in the following
work:
– Installation of electrical equipment
– Production and connection of data communication cables
– Production and connection of mains grid power supply cables
2.5.3 Designations
Symbols
The following table contains the symbols used in this manual
Warning signs Type of danger
Warning – high-voltage.
Warning – danger zone.
EN
747.431 | Z09.3 | 2017-09-05 11