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The StecaGrid DualString product range can beused universally. It is also the first choice in situationswhere the roof conditions are difficult, suchas partially shaded or differently aligned roof surfaces.For the home owner and for the farmer.The StecaGrid 2000+ is designed for solar powersystems from 2,000 W upwards.A Master can be supplemented by one or twoadditional Slaves, so that inverter units with2,000 or 6,000 W can be realised. Several Master-Slave combinations can be used within a singlesystem .
2,000 W upto 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 alternatingcurrent output, and optional use of an interfacecard.
Flexible system designThe StecaGrid 2000+ uses the DualString concept.This means that every inverter (Master or Slave) hastwo inputs, with each input having its own MPPtracker. One module string can be connected to eachinput. If required, the inputs can also be connectedin parallel.The advantage of such a system is the low sensitivityto negative influences such as (e.g.) partial shadowing,functional faults, or the dropout of a string. Theuse of several decentralised MasterSlave combinationsreduces the cost of DC cabling, and minimiseselectrical losses.
Galvanic isolationDualString inverters from Steca are equipped with ahigh-frequency transformer, and are thus galvanicallyisolated. This enables unrestricted use of thin-filmmodules. Nevertheless, high efficiency of up to 95%is achieved.
Diverse application situationsStecaGrid inverters offer constant high-power capabilityover a wide range of ambient temperatures.This is supported by maintenance-free, natural convectionvia the large-dimension cooling fins. Since nofans are used, the inverters work in virtual silence.Thanks to the high degree of protection, StecaGridDualString inverters are also suitable for outdoor installation.
Update Date:2010-05-21 20:34:05