Located in Paternopoli, in the province of Avellino, this single-phase system is historically the first photovoltaic plant monitored with Hicosy.
It is made on a flat roof with an inverter Aurora Powerone 4.2 OUTD that is in the floor immediately below the roof.
Easily accessible, the system is officially in operation since June 2012.
Overvoltage conditions for large irradiation
Shortly after the initial operation it was realized that the inverter often went off signaling the message “W003 Grid Fail” on the display. By monitoring with the Hicosy console, comparing the evidence of alarm and output voltages at real-time, it was possible to understand that the problem was due to the fact that the plant had been installed as the first plant on a new phase of the distribution network and thus it had a particularly high initial voltage. This value, with the addiction of the contribution of the inverter, made it cross the threshold beyond which the inverter was in protection.
Detachments of string caused by burning fuse
Because of the weather, not infrequently happens that an overcurrent can melt the string fuse of a photovoltaic system. Hicosy quickly communicates the problem to the user thanks to the Push Notification, so he can quickly inspect the problem in the alarm section.
With internet available it was possible to install Hicosy Wi-Fi + Cellular in 10 minutes. Instantly the datalogger began broadcasting readings to the server and the user, accessing the portal, could see data in his dedicated console.