Three-phase inverter with one MPP tracker
Inverter topology
The coolcept inverter topology was first used in the single-phase StecaGrid inverters, where its innovative circuitry achieved the highest efficiency. The three-phase coolcept³ fleX inverters also benefit from this circuit. The three-phase topology is fully reactive-power capable and therefore ready for future requirements.
Always symmetrical
The advantage of three-phase feed-in is that the solar power produced is always distributed symmetrically to all three conductors of the public grid. This applies across the whole power range of these inverters. Symmetrical feed-in is fully in the interest of utilities and also matches the three-phase consumption of households.
Highest efficiency and long service life
Very high efficiency means a peak efficiency of 98.6%, so less power loss has to be generated and dissipated to the surroundings. These are benefits for your yield.
Because three-phase feed-in always feeds energy into the grid on at least two phases, the unit needs no intermediate energy storage as single-phase feed-in does. For example, coolcept³ fleX inverters need no electrolytic capacitors for intermediate storage, which can affect the service life of an electronic device once they dry out. coolcept³ fleX inverters therefore have a long service life.
In addition, a new, unique cooling concept inside the inverters ensures even heat distribution and thus a long service life.
Product design and visualisation
The StecaGrid has a graphic LCD display showing energy yield values, current yield and system operating parameters. An innovative menu lets you select the different measured values individually. A guided, pre-programmed menu ensures seamless final commissioning.
Installation
Weighing only 12 kg, the light units can be wall-mounted easily and safely. The supplied wall bracket allows simple and very convenient installation. The unit does not need to be opened for installation. All connections and the DC disconnector are accessible from the outside. Sunclix mating connectors for the DC connection are included.
Features
Product features
- Highest efficiency
- Three-phase, symmetrical grid feed-in
- Simple installation
- Integrated data logger
- Low enclosure temperature at full load
- Sturdy metal enclosure
- Suitable for outdoor installation
- Integrated DC circuit breaker
- Very long service life
- Droop mode for integrating hybrid systems
- Fixed voltage mode for other energy sources
- Optimised shade management with global MPP tracking
Displays
- Multifunction graphic LC display with backlight
- Animated yield display
Operation
- Simple menu-guided operation
- Multilingual menu navigation