The new outdoor version of the Central Inverters HE SERIES
Power Electronics just released the solar inverter FREESUN-HEC. This is an outdoor version of our FREESUN-HE central inverter series. Its main feature is that it can be installed outdoor without any additional cost due to its IP65 protection degree which enables the internal side of the inverter to be fully sealed and protected from any external environmental condition. All the structure and doors are made of stainless steel and all the external mechanical parts are painted with a special durable paint, which is guaranteed for 12 years. Furthermore, all the structure of the modules, which make up the central solar inverter are also treated. They are all zinc coated and painted to improve its protection against external agents.
With the release of the FREESUN-HEC we have managed to slightly reduce the cost of wiring and installation as the handling is much easier and cheaper due to the fact that there are not big cranes involved in the unload. On the other side, we have managed to design a compact structure which allows to minimize the transport costs letting the medium voltage side for grid connections to be arranged locally.
FREESUN-HEC also offers all the technical features of the HE SERIES, which make it a unique central solar inverter. It has also been designed under the ARM2S2 TECHNOLOGY (Automatic, Redundant, Modular, Master-Slave System), which goes a step ahead by automatically bypassing and restarting the inverter without production losses. The main features of this brand new technology are:
The inverter automatically calculates and establishes the master module considering the total injected power of every slave module at night. Therefore we manage to homogenize the service life of all the components. In addition, the inverter is automatically restarted immediately after a fault occurs. The faulty module is bypassed and the inverter continues to operate without production losses.
The inverter is made up of equal modules, which are composed of the same components. Any module can operate as a master module, so in case of failure of the master module, the inverters will automatically assign another module as master.
The power of the inverter is build up out of 100 to 139kw equal modules, depending on the output voltage.
One module is operates as master and the remaining modules as slaves. They are all communicated through fiber optics.
In a word, the FREESUN-HEC compact design and impermeable cabinet facilitates so much the transport, unload and installation in any facility.