THEIA-S-String | Eltek Valere THEIA-2800S
High Performance, galvanically isolated string inverters
Using RAC-MPP, the THEIA S String inverter range will provide reliable and steady power for more time during the day, even under extreme or highly fluctuating environmental conditions. With 4 models available between 2.1kW and 3.8kW, all with maximum efficiencies, the THEIA S String provides a comprehensive range of string inverters.
Performance
Using galvanic isolation, the THEIA S String inverters meet the highest international safety standards and enable the user to choose whether to ground the positive or the negative terminal on the DC side, making the device especially suitable for use with thin-film modules of any technology. With an extremely low power feed level, the THEIA S String inverters provide more power for more of the day, maximising the working time of the installation. The wide input voltage range is outstanding within the class of transformer inverters and enables the use with either monocrystalline, polycrystalline or thin-film PV modules, and starting with the model 3800S and upwards, two PV string inputs are standard.
Reliability
The efficiency of the THEIA S String inverter range is one of the highest amongst inverters containing a transformer. The THEIA S String Wh input range excels by using Rapid Adaption Control Maximum Power Point tracking (RAC-MPP), a principle for extraordinary high yields, even under extremely fluctuating and dynamic irradiation conditions. The result is quick, efficient, and top class MPP tracking. With a protection level of IP54 and smart thermal design, the inverter has the ability to withstand quick temperature changes, high humidity and dust levels, and is able to operate when other devices have failed in the midday heat.
Ease of use
All connections using plug connectors and accessible without having to open the inverter, with automatic transfer of settings from one inverter to all the others thanks to master programming across the connected THEIA SString inverter network.
Monitoring, datalogging and communication
With a large, backlit, full graphical LCD, performance and important operating conditions are displayed in clearly arranged graphs and diagrams, including week and year review functions, to allow a quick on-site performance check at any time.
Inverter´s built-in datalogger saves measured values, yield and performance data. The datalogger functions with the high precision of an electricity meter, with events recorded in a separate protocol memory.
The EIA485 interface connects the THEIA S String inverters and gives them access to the world of THEIA S String plant monitoring. This high-performance interface allows cable lengths of up to 1,000 m.
*Optional DC switch disconnector.
