MODULAR SUNWAY TG
TE OD
INSTALLATION GUIDE
20/
139
Rev. 03
– 01/06//2018
PROHIBITION
It is forbidden to make any technical or mechanical modifications to the cabinet even
when out of warranty.
Elettronica Santerno is not responsible for any risks that may arise due to unauthorised
alterations, modifications or tampering.
2.2.
Intended use
The SUNWAY TG TE inverters are digitally controlled appliances which convert electrical energy from a DC
power source produced by photovoltaic (PV) panels into an AC current which is then delivered to the grid.
The SUNWAY TG TE inverters may only be used as described in this manual. The DC power supply must
come from the PV field only. The AC output must be parallel-connected to the grid only.
Any use other than that described in this manual is to be considered inappropriate and therefore improper.
2.3.
Qualified technical personnel
All work on MODULAR SUNWAY TG TE OD products must be carried out by skilled technical personnel
only. By skilled personnel it is intended persons who have been suitably trained to carry out the work in
question.
To commission and use the MODULAR SUNWAY TG TE OD inverters, personnel must know and
understand the instructions for installation and use. In particular all safety warnings must be strictly
observed.
2.4.
Specific dangers linked to photovoltaic (PV) systems
PV systems have certain characteristics which are the source of additional hazards and are described
below:
•
A live current source is connected. Depending on the operating conditions, there may be live voltage
from the PV generator or from the electrical grid. This must be taken into consideration, particularly
when disconnecting parts from the system.
•
Very high DC voltages are involved (with no periodic zero crossings) hence failure or the incorrect
use of fuses or plugs may cause electric arcs.
•
The short-circuit current of the PV generator is only slightly higher than the maximum operating
current and furthermore is linked to radiation. This means that fuses may not always blow in the event
of a short-circuit.
•
The PV generator grid is usually an IT type, i.e. it is only earthed in the event of a fault or energy
leakage. For connection to PV fields with earthing pole, connection is of the TN type, but the earth
connection is protected by a fuse which may trip in the event of a single fault.
•
In the event of a fault (for example a short-circuit), cutting off a generator with a high number of
branches may prove to be somewhat difficult. Take great care to ensure each sub-field disconnect
switch has been opened before going near the devices installed in the technical room.
2.5.
Execution of work
Maintenance, configuration modifications and management operations require the involvement of all
production and maintenance personnel. These activities
must be carried out in observance of health
and safety regulations
.
The Standards and Laws governing this aspect vary depending on the personnel involved, methods of
access and/or the tasks which may be carried out on the product and envisage constructive measures aimed
at guaranteeing adequate levels of safety.
Standard EN 50110-1, second edition, identifies the people who are granted access to the product:
•
Person in charge of running the electrical system (System Manager).
•
Person in charge of work activities (Works Supervisor).
•
Skilled electrician.
