19 September 2012
At PVSEC 2012, Steca will be showing its line of inverters and devices for off-grid systems at stand 3.1/G1.
The Steca stand will feature a look at the Coolcept topology, which provides the inverter with the best efficiency in the world. Steca will present the circuitry, consisting of symmetric step-down converters with downstream pole-reversing circuits. The circuitry uses two voltage levels for maximum efficiency. All components and the entire electronics fit compactly on a single circuit board.
The company also emphasises its commitment to innovation by already introducing new variants of the first two Coolcept devices, the StecaGrid 3000 and StecaGrid 3600. The company will also present the new StecaGrid 4200 inverter, which has a capacity of 4.2 kW and is also based on the world-class topology.
The StecaGrid 10000+ 3ph can also be seen. The device conforms to the requirements of the new Low Voltage Directive regarding the provision of reactive power, which can be fed specifically to maintain static voltage. The increasing demand for monitoring functions is reflected in the graphic LCD display, which is newly integrated into the device that visualises the values of the photovoltaic system. The menu also offers the possibility of retrieving measurements using individually configurable selection criteria.
The manufacturer has also developed new systems for optimising the own consumption of solar systems. These solutions are in great demand internationally – especially in markets with low PV production costs, high electricity costs or large system inventories, where PV systems are to be used for covering own electricity needs as an alternative to the public power grid. The SolUse system is equally suitable for use in new systems or for retrofitting existing systems. At the trade fair in Frankfurt, Steca will present a range of SolUse systems for different types and sizes of storage: SolUse Basic, Easy, and Expert.
The new Steca Tarom solar charge controller, to be introduced at the start of 2013, takes centre stage at the production presentation. This further development designed for use in telecommunication systems or hybrid PV systems will then be available in 12 V, 24 V and 48 V versions with a initial capacity of 45 A. Steca will explain the extended functions in Frankfurt: Among other features, the device has a new backlit graphical LCD display that sets new standards for the off-grid market. In addition to dawn, nighttime and evening lighting functions, this further development also offers time-based switching and two freely programmable switching contacts. The Tarom also makes a good impression with its attractive designer housing and compact form that makes installation easier.
