Solar Grid Connected Inverter/Solar Grid-tie Inverter/PV Grid Inverter/Solar Inverter

Specifications

The StecaGrid DualString product range can be
used universally. It is also the first choice in situations
where the roof conditions are difficult, such
as partially shaded or differently aligned roof surfaces.
For the home owner and for the farmer.
The StecaGrid 2000+ is designed for solar power
systems from 2,000 W upwards.
A Master can be supplemented by one or two
additional Slaves, so that inverter units with
2,000 or 6,000 W can be realised. Several Master-
Slave combinations can be used within a single
system .

2,000 W up
to several 10,000 W
The DualString product range consists of Masters 
and Slaves. Like the Slaves, the master includes an      
inverter, but it also provides additional functions: a          
four-line display, a data logger for storing the yield         
values, country-specific grid monitoring of the alternating
current output, and optional use of an interface
card.

Flexible system design
The StecaGrid 2000+ uses the DualString concept.
This means that every inverter (Master or Slave) has
two inputs, with each input having its own MPP
tracker. One module string can be connected to each
input. If required, the inputs can also be connected
in parallel.
The advantage of such a system is the low sensitivity
to negative influences such as (e.g.) partial shadowing,
functional faults, or the dropout of a string. The
use of several decentralised MasterSlave combinations
reduces the cost of DC cabling, and minimises
electrical losses.

Galvanic isolation
DualString inverters from Steca are equipped with a
high-frequency transformer, and are thus galvanically
isolated. This enables unrestricted use of thin-film
modules. Nevertheless, high efficiency of up to 95%
is achieved.

Diverse application situations
StecaGrid inverters offer constant high-power capability
over a wide range of ambient temperatures.
This is supported by maintenance-free, natural convection
via the large-dimension cooling fins. Since no
fans are used, the inverters work in virtual silence.
Thanks to the high degree of protection, StecaGrid
DualString inverters are also suitable for outdoor installation.